子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | COMPRESSOR SYSTEM | US09777210 | 2001-02-05 | US20020106288A1 | 2002-08-08 | Michael J. Lucas; Timothy F. Daley |
| A compressor system having a first compartment for housing relatively quietly operating equipment, and a second compartment for housing relatively noisy operating equipment. The second compartment is substantially closed off from the surrounding atmosphere to reduce the amount of noise that can be heard outside the compressor system on account of the noisy equipment operating within the compressor system housing. The second compartment includes a small air inlet opening and a small air outlet opening to allow enough air to flow through the second compartment to cool the equipment housed therein. The small openings reduce the amount of air-born noise which is released to the outside environment. The compressor system also has an air intake directing device for directing an appropriate amount of air into the second compartment to cool the noise generating machinery located within the second compartment, and for directing an appropriate amount of air to an air inlet opening of a compressor, thereby more efficiently using the air drawn into the compressor system housing. | ||||||
| 222 | Rotary compressor assembly with improved vibration suppression | US09698475 | 2000-10-30 | US06336794B1 | 2002-01-08 | Jin-Seop Kim |
| A rotary compressor assembly is provided which effectively reduces the vibration and noise occurring during the operation of the rotary compressor of the assembly. The compressor is fixedly mounted on a supporting plate. Vibration dampening members are received in corresponding supporting holes in the plate and serve to support the plate in spaced relation to an installation surface. The geometric center of the supporting holes is disposed so as to coincide with the center of gravity of the rotary compressor including an associated accumulator. As a result, the load is uniformly applied to each dampening member, and the rotary compressor is supported in a stable manner, thereby effectively reducing the vibration and noise associated with compressor operation. | ||||||
| 223 | Oil free screw compressor | US09391088 | 1999-09-16 | US06287088B1 | 2001-09-11 | Hitoshi Nishimura; Akira Suzuki |
| An oil free screw compressor includes a compressor main body directly connected to a high speed motor via a drive side gear and a driven side gear having a uniform speed ratio. A bearing in a side of the high speed motor employs one having the same size as that of a bearing in a side of the compressor main body. The same material as a viscous seal provided at both end portions of a male rotor and a female rotor is used for a viscous seal provided at both end portions of a motor shaft. The high speed motor is driven by a high frequency type inverter. The electric motor side and the compressor main body side are made in a rotational shaft structure which is dummy symmetrical about a uniform gear portion. In the oil free screw compressor, a speed increasing apparatus for increasing an output of an electric motor and a suction throttle valve are not required. Then, parts in the compressor main body side and parts in the electric motor side are made common, and a structure is made simple. | ||||||
| 224 | Scroll-type fluid displacement apparatus including an eccentric crank mechanism having an elongated shaft | US40801 | 1998-03-18 | US6106247A | 2000-08-22 | Stephen J. Wood |
| A scroll-type fluid displacement apparatus including at least two scroll members, with each scroll member having a plate and spiral involute extending from the plate. The spiral involutes mesh to define fluid voids between the scroll members that become smaller towards the center of the scroll members. The apparatus also includes an eccentric crank mechanism having an elongated shaft with an eccentric portion. The elongated shaft is connected at one end to a motor and at another end to a machine, while the eccentric portion is rotatably received by one of the scroll members such that the scroll members will orbit with respect to one another as the shaft is turned by the motor. The apparatus also includes at least one eccentric guide for assisting the eccentric crank mechanism in retaining the scroll members in an orbiting relationship. According to one embodiment, the eccentric guide comprises a second eccentric crank mechanism having an elongated shaft with an eccentric portion rotatably received by one of the scroll members. According to another embodiment, the elongated shaft of the second eccentric crank mechanism is connected at one end to a motor and at another end to a machine. | ||||||
| 225 | Compressor system having an oil separator | US903304 | 1997-07-30 | US6010320A | 2000-01-04 | Hee-sung Kwon |
| In a compressor system, a compressor main unit compresses air taken in and exhausts the compressed air with oil. The compressed air and the oil exhausted from the compressor main unit are stored in a reservoir. A head tank has an internal space and is coupled to the compressed main unit and the reservoir. An oil separator which is installed in the head tank separates the oil exhausted from the head tank from the compressed air. | ||||||
| 226 | Alternating pressure apparatus for obtaining oxygen from the air and method for the operation thereof | US988903 | 1997-12-11 | US5928407A | 1999-07-27 | Heinrich Amlinger |
| An alternating pressure apparatus for obtaining oxygen from the air has two adsorbers to which an air blower for adsorption air and a vacuum pump stand for desorption are connected. The vacuum pump stand has two vacuum pumps in tandem. The second vacuum pump in the direction of flow is configured as a rotary piston pump with preliminary inlet cooling for the defined inflow of outside air at atmospheric pressure. The inlet of the second vacuum pump is connected to the outlet of the first vacuum pump without the use of gas cooling by water injection or by a heat exchanger. The alternating pressure apparatus operates with a desorption pressure between 300 mbar and 500 mbar. | ||||||
| 227 | Expansion/separation compressor system | US807796 | 1997-02-28 | US5911743A | 1999-06-15 | David N. Shaw |
| An expansion/separation compressor system is presented for a multi-rotor compressor configuration. In accordance with the present invention the rotors are disposed in a shell having open and closed off portions for providing expansion, compression and separation. The closed off portions depend from or are attached to other suitable compressor structure including the induction or discharge plates. In an embodiment the expansion portion is comprised of a sliding valve. Separation is achieved when the flute and respective open shell portion expose the fluid to basic plenum pressure. The fluid is essentially removed by centrifugal force through the opening in the shell. The compressor is mounted to an evaporator and a control system is provided to regulate the temperature of water in the evaporator thereby controlling the rate of evaporation of liquid phase refrigerant in the evaporator. The liquid phase refrigerant is expanded between the rotors and respective shell portions to a desired volume. Further, the present invention presents foam generated from the liquid phase refrigerant to an opening in the shell at the induction side of the compressor for cooling, sealing and lubrication purposes. In accordance with the present invention the capacity of above described system can be varied without mechanical unloading. | ||||||
| 228 | Two-stage liquid ring pumps having separate gas and liquid inlets to the second stage | US791508 | 1997-01-30 | US5899668A | 1999-05-04 | Ramesh B. Shenoi; Carl G. Dudeck |
| A two-stage liquid ring pump has an interstage structure which promotes separation of the gas and liquid discharged from the first stage. The second stage has separate gas and liquid inlets for respectively admitting the separated gas and liquid to the second stage. This avoids any possible choking of the second stage gas inlet by liquid, thereby improving the performance of the pump. | ||||||
| 229 | Screw-type compressor | US711898 | 1996-09-12 | US5785149A | 1998-07-28 | Guido Jan Luyts |
| A screw-type compressor is described in which lubricants and cooling fluids are conducted principally through conduits maintained almost entirely within the gearcase and pressure housings of the compressor. In this arrangement according to the invention, the number of conduits, which are outside of the gearcase and pressure housings, between components and parts of the compressor is limited to a minimum. | ||||||
| 230 | Package-type screw compressor | US395307 | 1995-02-28 | US5613843A | 1997-03-25 | Seiji Tsuru; Shinichi Hirose; Junji Okita; Tadashi Kaneki; Katsuaki Kikuchi |
| Compressor bodies, an accelerator and a main motor are disposed on a base, while an innercooler, an aftercooler an oil cooler and a coolant cooler are disposed perpendicular to the axial direction of the motor so that the directions, in which the tube nests of the gas coolers are drawn out, are made to be the same. A control panel having a maintenance display is mounted on a front panel composed of panel portions which are mounted pivotally around respective remote or opposite side ends. Portions to be inspected daily are disposed near the front panel and one side panel adjacent thereto. | ||||||
| 231 | Refrigeration apparatus and methods | US559579 | 1995-11-16 | US5613368A | 1997-03-25 | Todd T. Marohl; Robert Burdick; Ronald A. Cole |
| The invention resides in improvements to refrigeration systems which rely on circulation of refrigerant gas through compression and expansion phases, and thereby discharging heat from a fluid to be cooled. The invention includes a subcooler (38) in the refrigerant loop, downstream of the refrigerant condenser (34) and a gas trap (36) between the condenser (34) and the subcooler (38), that assures temperature drop in the subcooler (38). The invention also comprehends a shut-off valve (44) between the compressor and the heat source heat exchanger (28). The invention further includes a high capacity-to-volume oil to air heat exchanger (48), for cooling the lubricating oil in the oil loop (26). Preferred refrigerant is ammonia. Incorporating the above improvements into refrigeration systems enables an overall reduction in system sizing. Such systems, having heat exchange capacity of at least 200,000 Btu/hr., up to at least 500,000 Btu/hr., can be mounted in a frame (14) whereby the overall refrigeration unit (10) comprising refrigeration system (13) and frame (14) can fit a standard 80,000 pound capacity truck. Preferred embodiments do not require cooling water; the only required utilities being a motive power source, used primarily to power the compressor (30). The shut-off valve (44) between the compressor and the heat source heat exchanger (289 is used to trap refrigerant in the heat source heat exchanger (28) when the refrigeration system (13) is shut down. | ||||||
| 232 | Refrigerator | US740 | 1993-01-05 | US5540061A | 1996-07-30 | Masahiko Gommori; Katsutoshi Shinohara; Takahiro Kaneko; Hiroaki Hata; Akihiko Ishiyama |
| A refrigerator comprises a compressor for compressing and discharging a coolant, a first heat exchanger which performs heat exchange between the compressed coolant from the compressor and the atmosphere to cool the compressed coolant, an adiabatic expansion orifice where the compressed and cooled coolant after passing the first heat exchanger is adiabatically expanded, and a second heat exchanger which performs heat exchange between the adiabatically expanded coolant and the air in refrigerating chambers so as to cool the air in the refrigerating chambers by the coolant and to heat the coolant by the air in the refrigerating chambers. The refrigerator further includes a third heat exchanger which performs heat exchange between water produced when frost attached on the refrigerating chambers is melted and the compressed coolant discharged from the compressor so as to heat and evaporate the water, and a fourth heat exchanger which performs heat exchange between the compressed coolant and the atmosphere so as to cool the compressed coolant. The third heat exchanger and the fourth heat exchanger are connected in series so that the compressed coolant discharged from the compressor is supplied to the first heat exchanger after it passes and is cooled by both the third and fourth heat exchangers. | ||||||
| 233 | Package-type screw compressor having coated rotors | US116755 | 1993-09-07 | US5401149A | 1995-03-28 | Seiji Tsuru; Shinichi Hirose; Junji Okita; Tadashi Kaneki; Katsuaki Kikuchi |
| Compressor bodies, an accelerator and a main motor are disposed on a base, while an intercooler, an aftercooler, an oil cooler and a coolant cooler are disposed perpendicular to the axial direction of the motor so that the directions, in which the tube nests of the gas coolers are drawn out, are made to be the same. A control panel having a maintenance display is mounted on a front panel composed of panel portions which are mounted pivotally around respective remote or opposite side ends. Portions to be inspected daily are disposed near the front panel and one side panel adjacent thereto. The compressor bodies including rotors that have been coated with a melted and solidified substantially homogeneous and continuous layer of a tetrafluoroethylene-perfluoroalkylvinylether copolymer that is substantially devoid of pinholes. | ||||||
| 234 | Refrigeration apparatus and methods | US679119 | 1991-04-02 | US5214928A | 1993-06-01 | Robert S. Burdick; Todd T. Marohl; Ronald A. Cole |
| The invention resides in improvements to refrigeration systems which rely on circulation of refrigerant gas through compression and expansion phases, and thereby discharging heat from a fluid to be cooled. The invention includes a subcooler (38) in the refrigerant loop, downstream of the refrigerant condenser (34) and a gas trap (36) between the condenser (34) and the subcooler (38), that assures temperature drop in the subcooler (38). The invention also comprehends a shut-off valve (44) between the compressor and the heat source heat exchanger (28). The invention further includes a high capacity-to-volume oil to air heat exchanger (48), for cooling the lubricating oil in the oil loop (26). Preferred refrigerant is ammonia. Incorporating the above improvements into refrigeration systems enables an overall reduction in system sizing. Such systems, having heat exchange capacity of at least 200,000 Btu/hr., up to at least 500,000 Btu/hr., can be mounted in a frame (14) whereby the overall refrigeration unit (10) comprising refrigeration system (13) and frame (14) can fit a standard 80,000 pound capacity truck. Preferred embodiments do not require cooling water; the only required utilities being a motive power source, used primarily to power the compressor (30). The shut-off valve (44) between the compressor and the heat source heat exchanger (28) is used to trap refrigerant in the heat source heat exchanger (28) when the refrigeration system (13) is shut down. This enables maintaining a sufficient amount of refrigerant in the heat source heat exchanger (28) to facilitate an adequate rate of pressure build-up at the compressor (30) when the system is re-started, even under intervening temperatures at least as cold as 30 degrees F., or less. | ||||||
| 235 | Vacuum pump | US822408 | 1992-01-17 | US5209653A | 1993-05-11 | Gary P. Murray; Harold E. Lyons; Richard D. Parks |
| A vacuum pump that includes an electric motor and a pump module mounted to the motor housing with the motor shaft being rotatably coupled to a pumping mechanism within the pump module. A pump inlet and a pump outlet are respectively coupled to the pumping mechanism within the pump module for pumping air from the inlet to the outlet upon operation of the motor. An inlet valve is carried by the pump, and is selectively movable by an operator between an open position in which the pump inlet port is coupled to the pumping mechanism and a closed position in which the inlet port is isolated from the pumping mechanism. In this way, the pumping mechanism may be connected to a system under service by placing the inlet valve in the open position to evacuate the system, and may be isolated from the system under service without disconnection therefrom by placement of the inlet valve in the closed position during service on or charging of the system. | ||||||
| 236 | Quick disassembly system for rotary vacuum pumps | US563250 | 1990-08-06 | US5100302A | 1992-03-31 | Massimo Ceccherini |
| The vacuum pump is subdivided into: a first part (13), consisting of an "actuating module" comprising the electric motor (15) and a support structure (16) containing both the half-couple (37) of the transmission coupling (35, 37), and the channels (53, etc.) and connections for the intake and delivery of the gases, connected to the various external pipes (47, etc.) and emerging at a coupling surface (C--C); and a second functional part (11), constituting a "pump module" and comprising the rotor or rotors (24, 25) with the associated rotating axle (33) complete with half-couple (35), the stators (21) and the delivery valves contained in a housing (27) which contains the special liquid for leaktightness and lubrication, which can be coupled to and uncoupled from the "actuating module" at said coupling surface (C--C), where corresponding connections emerge. | ||||||
| 237 | Vertical oilless screw vacuum pump | US379936 | 1989-07-14 | US4957417A | 1990-09-18 | Noboru Tsuboi |
| A vertical oilless screw vacuum pump for effective use in industrial processes to which air containing oil is detrimental, such as vacuum food packaging processes and semiconductor device manufacturing processes. The vertical oilless screw vacuum pump includes a pump unit having a pump casing provided with a suction port in the upper portion and a discharge port in the lower portion thereof, and a set of meshed male and female oilless screw rotors disposed within the pump casing A, also high-frequency motor is disposed under the pump unit and has a motor casing joined to the lower end of the pump casing. The output shaft of the motor is coupled directly with one of the rotor shafts of the oilless screw rotors to drive the oilless screw rotors directly without using any gear train. Bearings supporting the upper ends of the rotor shafts are lubricated by a grease having a vapor pressure below a desired ultimate vacuum to be achieved by the vertical oilless screw vacuum pump. The motor casing is used also as an oil reservoir for containing a lubricating oil for lubricating bearings supporting the lower ends of the rotor shafts. The use of the grease for lubricating the bearings disposed near the suction ports avoids the dispersion of oil into a vacuum. The direct coupling of the rotor shaft and the output shaft of the motor, and the use of the motor casing as an oil reservoir enables the vertical oilless screw vacuum pump to be constructed in a compact construction. | ||||||
| 238 | Vacuum system for feeding sheets | US255550 | 1988-10-07 | US4957283A | 1990-09-18 | William J. Kist |
| A pneumatic system which in the preferred embodiment includes a pump having a primary suction port and a secondary suction port, with the pump being operable for generating vacuum pressures at both such ports. A first vacuum operated system is coupled to the primary suction port and a second vacuum operated system is coupled to the secondary suction port, and a predetermined, preferably selectively adjustable, orifice is established between the first and second vacuum operated systems for enabling vacuum airflow generated at the first suction port to augment the airflow through the second vacuum operated system. In an alternative embodiment, separate standard vacuum pumps are coupled to the first and second vacuum operated systems. | ||||||
| 239 | Motor and vane-pump assembly free from external oil leaks | US166781 | 1988-03-01 | US4797071A | 1989-01-10 | Gilles Veyrat |
| The invention provides a motor and vane-pump set comprising a vane-pump comprising a stator (53) and a rotor (50) fitted with vanes (52) and extended by a shaft (51), with the rotor and stator assembly being disposed in a tank (71) which is partially filled with oil, with the shaft rotating in bearings lubricated by said oil and fitted with sealing rings (61,62), said pump being rotated by an electric motor comprising a stator (44) and a rotor (48) fitted with a shaft (48), the motor and vane-pump set being characterized in that the rotor shafts (48, 51) of the motor and the pump are joined together and in that an envelope (75) of non-magnetic material is disposed between the stator (44) and the rotor (47) of the motor, said envelope being closed at its far end from the pump by a cover (77), and bearing in sealed manner at its opposite end on a motor end plate (76) which is fixed to the pump. | ||||||
| 240 | Compressor system with oil separation | US664081 | 1984-10-23 | US4563138A | 1986-01-07 | Rudolf Hofmann; Kurt Magdhuber |
| To design a compressor system with a screw-type compressor, the housing of which has cavities for air guidance and oil separation, in an economical way for small delivery quantities, there is a disc-shaped housing with a longitudinal dimension corresponding essentially to the rotor length, and in this housing the compressed air flowing out of the compressor and mixed with oil is deflected in a radial and a peripheral direction for oil separation. The oil separator, the oil filter and the air filter are attached as separate units to the end face of this housing. The bearing plate of the drive motor is designed as a mechanical transmission space. | ||||||
QQ群二维码
意见反馈
意见反馈