序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 Flow Control US11536977 2006-09-29 US20080229781A1 2008-09-25 Timothy Samuel Farrow; Albert Vincent Makley
The problems of prior compressor structures relying upon conventional check valves are obviated by using, instead, flow control passages which operate to control flow while avoiding mechanical moving elements which may become problematical.
162 Centrifugal heat transfer engine and heat transfer systems embodying the same US10265652 2002-10-04 US07010929B2 2006-03-14 John Kidwell
A heat transfer engine having cooling and heating modes of reversible operation, in which heat can be effectively transferred within diverse user environments for cooling, heating and dehumidification applications. The heat transfer engine of the present invention includes a rotor structure which is rotatably supported within a stator structure. The stator has primary and secondary heat exchanging chambers in thermal isolation from each other. The rotor has primary and secondary heat transferring portions within which a closed fluid flow circuit is embodied. The closed fluid flow circuit within the rotor has a spiraled fluid-return passageway extending along its rotary shaft, and is charged with a refrigerant which is automatically circulated between the primary and secondary heat transferring portions of the rotor when the rotor is rotated within an optimized angular velocity range under the control of a temperature-responsive system controller. During the cooling mode of operation, the primary heat transfer portion of the rotor carries out an evaporation function within the primary heat exchanging chamber of the stator structure, while the secondary heat transfer portion of the rotor carries out a condenser function within the secondary heat exchanging chamber of the stator. During the cooling mode of operation, a vapor-compression refrigeration process is realized by the primary heat transfer portion of the rotor performing an evaporation function within the primary heat exchanging chamber of the stator structure, while the secondary heat transfer portion of the rotor performs a condenser function within the secondary heat exchanging chamber of the stator. During the heating mode of operation, a vapor-compression refrigeration process is realized by the primary heat transfer portion of the rotor performing a condenser function within the primary heat exchanging chamber of the stator structure, while the secondary heat transfer portion of the rotor performs an evaporation function within the secondary heat exchanging chamber of the stator. By virtue of the present invention, a technically feasible heat transfer engine is provided which avoids the need for conventional external compressors, while allowing the use of environmentally safe refrigerants. Various embodiments of the heat transfer engine are disclosed, in addition to methods of manufacture and fields and applications of use.
163 Centrifugal heat transfer engine and heat transfer systems embodying the same US10374763 2003-02-25 US20030217566A1 2003-11-27 John E. Kidwell
A heat transfer engine having cooling and heating modes of reversible operation, in which heat can be effectively transferred within diverse user environments for cooling, heating and dehumidification applications. The heat transfer engine of the present invention includes a rotor structure which is rotatably supported within a stator structure. The stator has primary and secondary heat exchanging chambers in thermal isolation from each other. The rotor has primary and secondary heat transferring portions within which a closed fluid flow circuit is embodied. The closed fluid flow circuit within the rotor has a spiraled fluid-return passageway extending along its rotary shaft, and is charged with a refrigerant which is automatically circulated between the primary and secondary heat transferring portions of the rotor when the rotor is rotated within an optimized angular velocity range under the control of a temperature-responsive system controller. During the cooling mode of operation, the primary heat transfer portion of the rotor carries out an evaporation function within the primary heat exchanging chamber of the stator structure, while the secondary heat transfer portion of the rotor carries out a condenser function within the secondary heat exchanging chamber of the stator. During the cooling mode of operation, a vapor-compression refrigeration process is realized by the primary heat transfer portion of the rotor performing an evaporation function within the primary heat exchanging chamber of the stator structure, while the secondary heat transfer portion of the rotor performs a condenser function within the secondary heat exchanging chamber of the stator. During the heating mode of operation, a vapor-compression refrigeration process is realized by the primary heat transfer portion of the rotor performing a condenser function within the primary heat exchanging chamber of the stator structure, while the secondary heat transfer portion of the rotor performs an evaporation function within the secondary heat exchanging chamber of the stator. By virtue of the present invention, a technically feasible heat transfer engine is provided which avoids the need for conventional external compressors, while allowing the use of environmentally safe refrigerants. Various embodiments of the heat transfer engine are disclosed, in addition to methods of manufacture and fields and applications of use.
164 Motor, refrigeration machine or heat pump US09341358 1999-09-07 US06196020B1 2001-03-06 Jan-Erik Nowacki; Eric Granryd
When not only integrating the compressor and expander, but also the heat exchanger in one single rotor, a machine working according to the gas turbine process can be simplified. The gas turbine process in such a machine can also be run in reversed mode as a refrigeration machine or heat pump. Lower relative velocities between the working fluid and the components of the machine can be used which should lead to lower frictional losses and a higher efficiency. In order to further reduce the friction the rotor should rotate in a chamber with low pressure or in a medium with lower friction than air. The medium that exchanges heat with the working medium here called the heat carrying fluid is also taken into the rotor.
165 Centrifugal heat transfer engine and heat transfer system embodying the same US725648 1996-10-01 US5906108A 1999-05-25 John Kidwell
A heat transfer engine having cooling and heating modes of reversible operation, in which heat can be effectively transferred within diverse user environments for cooling, heating and dehumidification applications. The heat transfer engine includes a rotor structure which is rotatably supported within a stator structure. The stator has primary and secondary heat exchanging chambers in thermal isolation from in each other. The rotor has primary and secondary heat transferring portions within which a closed fluid flow circuit is embodied. The closed fluid flow circuit within the rotor has a spiralled fluid-return passageway extending along its rotary shaft, and is charged with a refrigerant automatically circulated between the primary and secondary heat transferring portions of the rotor when the rotor is rotated within an optimized angular velocity range under the control of a temperature-responsive system controller. During the cooling mode of operation, a vapor-compression refrigeration process is realized by the primary heat transfer portion of the rotor performing an evaporation function within the primary heat exchanging chamber of the stator structure, while the secondary heat transfer portion of the rotor performs a condenser function within the secondary heat exchanging chamber of the stator. During the heating mode of operation, a vapor-compression refrigeration process is realized by the primary heat transfer portion of the rotor performing a condenser function within the primary heat exchanging chamber of the stator structure, while the secondary heat transfer portion of the rotor performs an evaporation function within the secondary heat exchanging chamber of the stator.
166 Rotating heat pump US973836 1997-12-18 US5901568A 1999-05-11 Johan Haga
A heat pump with a closed cooling medium circuit for transport of heat from one air flow to another, comprises an evaporator (27) provided in one air flow for evaporation of a cooling medium, a compressor for compression of the vaporiform cooling medium, a condenser (28) provided in the other air flow for condensation of the cooling medium, and a return system for condensed cooling medium from the condenser (28) to the evaporator (27). The evaporator (27), the compressor and the condenser (28) are located in a fan casing (32) and arranged to rotate about a common shaft (1), with the compressor in the middle. The compressor works according to the liquid ring principle and comprises a rotating compressor housing (17), an intermediate shaft (2) mounted eccentrically on the outside of the shaft and one or more free-running impellers (3A, 3B), thus causing the compressor housing (17) to transfer rotary energy to the impellers via the liquid ring during operation. The evaporator (27) and/or the condenser (28) each comprises an outer housing which is equipped with surfaces which project into the air flow, with the result that the evaporator (27) and/or the condenser (28) act as fans.
167 Low profile concentric heat pump with reversible air flow US923799 1992-10-29 US5315844A 1994-05-31 Laurits Hansen
The heating or cooling apparatus includes a heat pump further including a compressor, a radiator portion, an expansion valve and a cooling portion, the heat pump being constructed in the form of a thin rotatable wheel wherein the cooling portion forms a radially inner portion of the wheel and the radiator portion forms a radially outer portion of the wheel, the wheel having a plurality of fins which, when the wheel rotates, drive stream of air over the cooling portion and the radiator portion, and a housing enclosing the wheel and having means for separating the streams of air and directing them in desired directions.
168 Centrifugal refrigeration system US747934 1991-08-21 US5168726A 1992-12-08 Charles L. York
An improved centrifugal refrigeration system having an elongated rotatably supported shaft with means to rotate the shaft, a condenser unit affixed to and rotated with the shaft, the condenser unit having a tubular member coiled about the shaft in a path beginning at a condenser unit inlet point at a first radius from the shaft and increasing as it is coiled about the shaft to an outlet point at a greater radius, an evaporator unit affixed to and rotated by the shaft and being spaced from the condenser unit, the evaporator unit having a tubular member coiled about the shaft in a path beginning with an inlet point adjacent the shaft and an outlet point at a second radius from the shaft, the second radius of the evaporator unit outlet point being less than or at least not substantially greater than the first radius of the condenser inlet point, a refrigeration return line connecting the evaporator outlet point to the condenser outlet point, a refrigerant delivery tube connecting the condenser outlet point to the evaporator inlet point, a metering device interposed in the refrigerant delivery tube, and refrigerant filling the condenser tubing, evaporator tubing, refrigeration return tube and refrigeration delivery tube in a closed hermetically sealed system. As the shaft is rotated the refrigerant is compressed in the condenser unit by centrifugal force into a liquid, the liquid passing through the metering device and into the evaporator unit where the liquid expands into gas, absorbing heat and the refrigerant gas is returned back to the condenser inlet point in a continuous cycle.
169 Heat-actuated air conditioner/heat pump US390596 1982-06-21 US4438636A 1984-03-27 Dean T. Morgan
A heat-actuated air conditioner/heat pump is disclosed which includes a sealed, rotatable tube. The sealed tube contains a working fluid and includes an evaporator leg and a condenser leg, the condenser leg extending a greater distance from the axis of rotation than the evaporator leg. As the tube is rotated, a vapor pressure differential is created between the evaporator and condenser legs with the higher pressure in the condenser leg. Because of this pressure differential, the working fluid will evaporate in the evaporator leg at a lower temperature than that at which it will condense in the condenser leg. The evaporator leg thus can be used for cooling a stream of house air (house air conditioning) while the condenser leg rejects heat to a stream of ambient air. When all of the working fluid has evaporated, the system may be recharged for another cooling cycle by supplying heat to the condenser leg to drive the working fluid back into the evaporator leg. The sealed tube may also be operated as a heat pump for heating house air.
170 Rotary thermodynamic apparatus and method US240135 1981-03-03 US4367639A 1983-01-11 Frederick W. Kantor
Rotary thermodynamic compression and refrigeration apparatus and methods in which the mechanical impedance and/or thermodynamic impedance of the system are controlled in order to obtain stable operation. By controlling these impedances, the overall pressure drop of the fluid flow in the system is made to increase with increasing fluid flow rate, thus ensuring stable operation.
171 Pitot heat pump US146136 1980-05-02 US4304104A 1981-12-08 Ronald D. Grose
A pitot heat pump is described wherein a multi-stage pitot pump is employed as the compression means in a heat pump thermodynamic cycle. The heat pump is comprised of a multi-stage vapor pitot pump, liquid pitot pump, turbine, vaporizer, evaporator, condenser and expansion valve. The turbine is used to rotate a shaft to which the impellers of the pitot pump are attached. Refrigerant gas from the evaporator enters the first stage of the pitot pump and the impeller therein forces the refrigerant gas outwardly where it enters the narrow end of a pitot tube provided therein. The discharge end of the pitot tube is in communication with the next stage of the pitot pump. In passing through the pitot tube, the refrigerant gas expands and the centrifugal force and the kinetic energy of the gas provide the energy whereby the refrigerant gas is compressed. After the last stage, the compressed gas is transmitted to the condenser of the heat pump.
172 Rotary thermodynamic apparatus US723715 1976-09-16 US4144721A 1979-03-20 Frederick W. Kantor
A working fluid such as a liquifiable gas is rotated in a rotor having a thermodynamic compressor, a condenser chamber and an evaporation chamber. The high pressure zone in the condenser chamber is separated from the low pressure zone of the evaporator by a column of liquid. In several embodiments, a forepump is actuated by the thermodynamic compressor in order to vary the thermodynamic operating points of the device.
173 Refrigeration machine US827943 1977-08-26 US4124993A 1978-11-14 Michael Eskeli
A method and apparatus for the generation of cooling or heating by using a centrifuge type heat exchanger wherein the refrigerant during heat addition undergoes a pressure increase. The apparatus where heat is added is a rotary heat exchanger with the refrigerant being within the heat exchanger and rotating with it, and the air which is releasing heat is outside of the heat exchanger in a stationary casing. Stationary or rotary heat exchanger may be used for heat rejection by the refrigerant. By reversing the air connections, one can also use the device for heating room air in air conditioning applications, while the air circulating around the heat exchanger is outside air. Refrigerant fluids for this device may be the usual fluids used for refrigeration, such as air, halogenated hydrocarbon, ammonia and others.
174 Thermodynamic compressor US708863 1976-07-26 US4107945A 1978-08-22 Michael Eskeli
A method and apparatus for the thermodynamic assisted compression of gases wherein a gas is alternately compressed and expanded with addition of heat regeneratively. The basic apparatus and method are applicable to a variety of uses such as gas compression, turbines and in heat temperature boosters. Working fluids may be either gases or vapors. Heat may also be removed during compression steps and added during expansion steps. Process can be used with both steady flow and non-flow apparatus.
175 Rotary heat exchanger with cooling US474729 1974-05-30 US4077230A 1978-03-07 Michael Eskeli
A method and apparatus for the transfer of heat at a lower temperature to another fluid at a higher temperature, using a rotary heat exchanger and circulating the two fluids through said heat exchanger wherein a third fluid is circulated. The third fluid is normally a gas, compressed within the rotor by centrifugal action, with accompanying temperature increase, and heat is removed from said third fluid to a second fluid during and after compression; heat is added to said third fluid from a first fluid during and after expansion. A fourth fluid may be also circulated within said rotor, for removing heat from said third fluid before and during early part of compression to increase the weight of said third fluid within the compression side of the said rotor, thus improving the circulation of said third fluid within said rotor. Said second fluid, said first fluid, and said fourth fluid may be either liquids or gases as desired, including water. Said third fluid may be carbon dioxide.
176 Thermodynamic machine with step type heat exchangers US675304 1976-04-09 US4060989A 1977-12-06 Michael Eskeli
This invention relates to power generation equipment and heat boosters, where a gaseous working fluid is compressed within a rotating rotor, heat is added or removed after such compression, and then the working fluid is expanded against centrifugal force within the rotor, and heat is again either added or removed from the working fluid. Where heat is added after the compression and heat removed after the expansion, the unit will be a power generator; where heat is removed after the compression and heat is added after the expansion, the unit will be a heat booster. Additionally, the unit may be provided with regeneration to exchange heat between the working fluid streams between such heat addition and heat removal. Working fluids that can be used are normally gaseous, and may be for example carbon monoxiode, or a halogenated hydrocarbon, or air.
177 Rotary heat exchanger US504769 1974-09-10 US4000777A 1977-01-04 Nikolaus Laing
A heat exchanger for a thermodynamic machine, such as a heat pump or an expansion motor, comprises two corotating and coaxial sections, namely an evaporator section and a condenser section, interconnected by conduits in a closed circuit for the passage of a vaporizable working fluid. Each rotary section comprises an annular collector, centered on the axis of rotation, and an array of axially extending tubes closed at one end, the open tube ends being partly obstructed by barriers serving to retain a pool of liquefied working fluid by centrifugal force in an outer peripheral sector of each tube; the pool on the condenser side overflows into the corresponding collectors to form a reservoir for the liquid. A pump continuously delivers liquid working fluid from that reservoir to a set of injector pipes in the evaporator tubes at a mass-flow rate exceeding the mass-flow rate of the evolving vapors to maintain a steady supply of liquid in the evaporator tubes as well as an overflow which, after temporary storage in the evaporator collector, is recirculated to the injector pipes for reintroduction into the evaporator tubes together with fresh liquid from the condenser-side reservoir.
178 Rotating heat pipe for air-conditioning US495876 1974-08-08 US3999400A 1976-12-28 Vernon H. Gray
A unique rotary hermetic heat pipe is disclosed for transferring heat from an external source to an external heat sink. The heat pipe has a tapered condensing surface which is curved preferably to provide uniform pumping acceleration, the heat pipe being rotated at a velocity such that the component of centrifugal acceleration in an axial direction parallel to the tapered surface is greater than 1G and so that the condensing surface is kept relatively free of liquid at any attitude. The heat pipe may be incorporated in an air conditioning apparatus so that it projects through a small wall opening. In the preferred air conditioning apparatus, a hollow hermetic air impeller is provided which contains a liquefied gaseous refrigerant, such as freon, and means are provided for compressing the refrigerant in the evaporator region of the heat pipe.
179 Rotary thermodynamic compressor US461452 1974-04-16 US3981627A 1976-09-21 Frederick W. Kantor
The thermodynamic compressor has a pair of conduits, each of which is wound into a group of loops arranged to form a toroid around a rotational drive axis. Each of the loops has an outwardly-extending section, and an inwardly-extending section which is spaced from the outwardly-extending section longitudinally along the rotational axis of the shaft. Each group of loops has the same number of loops in it, and corresponding loops in each of the groups are arranged directly opposite one another and working fluid is introduced in parallel into the groups of loops so that the amount of fluid in each pair of corresponding opposed loops remains the same at all times despite compression of the working fluid in the loops. The loops are arranged with the outwardly-extending sections in one plane, and the inwardly-extending sections in another plane so that heat easily can be added from the outside to the inwardly-extending sections and can be extracted easily from the outwardly-extending sections. The compressor is rotated, and each of the groups of loops forms a cascaded series of thermodynamic compressor sections. The compressor therefore uses centrifugal force to act upon opposing radial columns of working fluid having different densities caused by the heat transfer to and from the compressor, thus providing an extremely effective rotary compressor. The thermodynamic compressor of this divisional patent application is illustrated in FIGS. 12 and 13 of the drawings.
180 Rotary heat engine powered single fluid cooling and heating apparatus US557875 1975-03-12 US3962874A 1976-06-15 William A. Doerner
Rotary closed Rankine cycle cooling and heating apparatus utilizing a single fluid for both engine power and refrigeration. The apparatus includes a rotary housing containing a boiler, power fluid expander coupled with a refrigerant fluid compressor and a refrigerant expander. A condenser for the expanded power portion and the compressed refrigerant portion of the single fluid, and an evaporator for the expanded refrigerant fluid portion, are mounted at respectively opposite sides of the housing coaxially thereof for rotation with the housing as a unit. The power fluid expander is driven at a predetermined speed by pressure power fluid vapor generated in the boiler and in turn drives the refrigerant fluid compressor. The refrigerant expander is of the capillary type constructed and arranged with respect to the evaporator to automatically control the capacity balance of the refrigerant system. The entire unit is hermetically sealed and the Rankine cycle power system is adapted and designed for use with a high molecular weight fluid. The expanded power and compressed refrigerant portions of the single fluid are condensed in the condenser and means are provided in the housing for dividing and supplying the condensed liquid to the boiler at the rate to maintain a constant predetermined liquid level in the boiler and to the refrigerant expander to establish and maintain capacity balance in the refrigerant system.
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