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 |
|---|---|---|---|---|---|---|
| 241 | Refrigeration system incorporating scroll type compressor | US458923 | 1983-01-18 | US4475360A | 1984-10-09 | Kazutaka Suefuji; Kensaku Oguni; Sumihisa Kotani; Kenji Tojo |
| A refrigeration system including a scroll type compressor having a stationary scroll member, an orbiting scroll member, a discharge port formed in the central portion of the end plate of the fixed scroll member, a suction port formed in a peripheral portion of the fixed scroll member, and at least one gas injection port formed through the thickness of an end plate of the fixed scroll member in a portion of the end plate near the spiral wrap, at a position spaced from the wall of the spiral wrap by a radial distance less than the thickness of the spiral wrap. A discharge pipe is connected to the discharge port, with a suction pipe being connected to the suction port. A refrigerant circuit is connected between the suction pipe and the discharge pipe of the scroll type compressor and includes a four-way valve, indoor heat exchanger, first pressure reducer, gas-liquid separator, second pressure reducer and an outdoor heat exchanger. A gas injection passage is connected between the gas outlet formed in an upper part of the gas-liquid separator and the gas injection port, so as to permit the refrigerant gas in the upper part of the gas-liquid separator to be additionally supplied into the compression chambers under compression in the scroll type compressor. | ||||||
| 242 | Method of generating gas pressure in an internal combustion engine, and apparatus for carrying out this method | US319064 | 1981-11-06 | US4463554A | 1984-08-07 | Rainer Sudbeck; Hans Baumgartner |
| In an internal combustion engine a rotary gas motor, driven by the intake gas of the engine, drives pump providing secondary air to the engine exhaust at low engine load, and at high load a clutch connects the pump and the motor to the engine shaft, the output of the pump and the motor being delivered to the engine intake. | ||||||
| 243 | Refrigerating system using scroll type compressor | US313496 | 1981-10-21 | US4382370A | 1983-05-10 | Kazutaka Suefuji; Tetsuya Arata; Yoshikatsu Tomita; Sumihisa Kotani; Naoshi Uchikawa; Akira Murayama |
| A refrigerating system including a refrigeration circuit and a scroll type compressor provided with two volume control mechanisms to allow the system to selectively perform full load operation and unloaded operation. The scroll type compressor includes two scroll members of known construction meshing with each other to define compression chambers and a suction chamber and is combined with the refrigeration circuit having an outdoor heat exchanger, an expansion valve, an indoor heat exchanger and a four-way change-over valve to provide a heat pump type refrigerating system. The volume control mechanisms each include a pair of bypass apertures in the fixed scroll member communicating with a valve chamber having a valve member slidably mounted therein and normally biased to an open position by a spring. The bypass apertures, of which one communicates with the suction chamber and the other communicates with one of the compression chambers, and the valve chamber constitute a bypass passageway. A pressure introducing pipe opens in the valve chamber. Upward movement of the valve member brings the two bypass apertures in communication with each other through the valve chamber to enable the system to perform a volume control operation. In another application, four volume control mechanisms are located symmetrically and divided into two blocks through a flow passage switching device to assign two mechanisms to one block. By this arrangement, the system is able to perform volume control operation in three stages, or able to operate selectively at maximum load, intermediate load and minimum load. | ||||||
| 244 | Refrigerant compressor for air conditioning of vehicles | US028890 | 1979-04-10 | US4265603A | 1981-05-05 | Tsuneyuki Chiyoda; Masami Ohtani |
| A refrigerant compressor for use with an air conditioner for vehicles, which comprises a housing in which a vane pump is accommodated, and a covering disposed so as to enclose said housing in a fashion that its inner wall cooperates with the outer wall of said housing to define a refrigerant delivery chamber, characterized by that a temperature sensor is embedded in a portion of the outer wall of said housing. The sensor may be composed of a semiconductor thermo-sensitive device or a conductor wire made of a metal including a high resistance metal. Thus, accurate and stable detection of the internal temperature of the compressor is feasible, thereby making it possible to avoid seizure of the sliding machine parts of the compressor. | ||||||
| 245 | Liquid ring compressor or vacuum pump | US69992 | 1979-08-27 | US4257749A | 1981-03-24 | Claus Ramm |
| In a liquid ring compressor or vacuum pump with a liquid cooled electric motor and in a liquid separator disposed in housings which are connected to each other without piping and are subdivided into chambers by partitions, the compressor or pump housing forms, together with the motor housing, a first housing block and, in a second housing block, which is connected to the first via internal canals, a heat exchanger and the liquid separator are arranged with the two prismatic housing blocks immediately adjacent and sealed to each other on one side. The inlets and outlets for the liquid to be pumped and the cooling liquid are distributed over both housing blocks to provide a closed circuit for the operating liquid and for a continuous external supply of cooling liquid. | ||||||
| 246 | Closed chamber rotary vane gas cycle cooling system | US915707 | 1978-06-15 | US4187693A | 1980-02-12 | Ronald E. Smolinski |
| A gas cycle cooling system having a rotary compressor and expander driven by a common shaft wherein the compression and expansion of a modified reverse Brayton cycle is provided within a closed chamber by changes in volume brought about by vanes sliding within slots in a rotor. The rotor is positioned within the chamber to provide spaces between the rotor and the chamber wall which act as effective gas transfer passages between the compressor and the expander. Liquid from a first heat exchanger is circulated through the wall of the rotor housing adjacent the compressor portion of the chamber to remove heat during the compressor phase of the cycle. Liquid is circulated through the wall of the rotor housing adjacent the expander portion of the chamber to provide cooling for a second heat exchanger. | ||||||
| 247 | Oil equalization system for parallel connected hermetic helical screw compressor units | US930444 | 1978-08-02 | US4179248A | 1979-12-18 | David N. Shaw |
| A pair of helical screw rotary hermetic compressor units are connected in parallel across common suction and discharge manifolds. The discharge manifolds open to each unit casing well above the level of accumulated oil within the bottom of the hermetic casings acting as oil sumps. Oil bleed lines are provided for the casings which open to the casing interior at oil bleed ports at the normal level of accumulated oil. The bleed lines are of small diameter and open directly to the discharge manifold at points downstream of the connection between the discharge manifold and the hermetic casing. Excessive accumulation of oil within one of the hermetic compressor casings causes the oil to bleed through its bleed line under a small pressure differential to the discharge manifold for redistribution to the remaining compressors. | ||||||
| 248 | Modular vacuum pump assembly | US394092 | 1973-09-04 | US4123201A | 1978-10-31 | Vytautas Andriulis |
| A vacuum pump assembly has a conventional electric motor, a mounting plate centered with respect to the drive shaft of the motor, and a self-contained, replaceable modular pumping apparatus. The module has a stator, a rotor, and axially opposite end plates enclosing a pumping chamber, and is detached easily, quickly mounted onto the mounting plate as a unitary assembly, and operatively connected to the drive shaft of the motor by a shock-absorbing self-aligning coupling. It is enclosed by a pump housing containing lubricant for lubrication and sealing purposes during pump operation. The pumping module has a double seal to maintain lubricant and to allow the shaft connected to the rotor to center itself relative to the mounting plate and the motor. The module is in communication with intake and gas ballast ports through passageways in the mounting plate to provide for gas transfer therethrough, and optionally contains passageways formed in the interior face of one of the end plates which connect with vanes reciprocating in radial slots formed in the rotor to allow secondary pumping of fluids within the pumping chamber. | ||||||
| 249 | Method for compressing mixed gas consisting of combustible gas and air | US693975 | 1976-06-08 | US4087208A | 1978-05-02 | Kazumi Uda; Motohiko Tamura; Ichiro Nishiura; Hiroshi Fujiike |
| A novel method for compressing mixed gas consisting of combustible gas and air without risk of explosion of the mixed gas is described herein. In the novel method, the mixed gas is compressed under coexistence of non-combustible liquid such as water. In one preferred embodiment, a water-sealed compressor as represented by a Nash pump is used for compressing the mixed gas, and water contained in the compressed mixed gas is separated and fed back to the water-sealed compressor to assure existence of sealing water in the compressor. | ||||||
| 250 | Refrigeration plants | US43576774 | 1974-01-23 | US3848422A | 1974-11-19 | SCHIBBYE L |
| Refrigeration plant comprising two stage compression. The low pressure compressor or booster is of the screw compressor type running at high speed with respect to the high pressure compressor and provided with oil injection, restricted to the amount necessary for lubrication of the contact surfaces of the rotors.
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| 251 | Multistage mechanical vacuum pumping arrangements | US3519371D | 1968-09-18 | US3519371A | 1970-07-07 | HOLLAND LESLIE ARTHUR; BAKER MALCOLM ARTHUR; LAURENSON LAURENCE |
| 252 | Means for cooling high vacuum rotary pumps | US57908856 | 1956-04-18 | US2843313A | 1958-07-15 | PARMLEY RALPH D |
| 253 | Fluid compressor unit | US2102648 | 1948-04-14 | US2641405A | 1953-06-09 | LE VALLEY JOHN |
| 254 | Vacuum pump lubrication | US59707445 | 1945-06-01 | US2463871A | 1949-03-08 | HOWARD HAPGOOD CYRUS |
| 255 | Sectional rotary compressor | US58281631 | 1931-12-23 | US1984664A | 1934-12-18 | ALFRED TEVES |
| 256 | Detachable and adjustable motor driven pump unit | US58157931 | 1931-12-17 | US1970681A | 1934-08-21 | ZIMMERER MARK E |
| 257 | Pump | US72946124 | 1924-08-01 | US1694783A | 1928-12-11 | JOHNSON LAWRENCE E; HANSEN SINIUS M; MCTARNAHAN JOHN T |
| 258 | Compressor | US22782327 | 1927-10-21 | US1672148A | 1928-06-05 | BERNHARD BISCHOF |
| 259 | Variable-capacity compressor. | US1903172367 | 1903-09-08 | US1047977A | 1912-12-24 | NORDBERG BRUNO V |
| 260 | Unloader for single-acting compressors. | US1904234011 | 1904-11-23 | US834626A | 1906-10-30 | LONGACRE FREDERICK VAN DUZER |
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