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| Number | Title | Issue Date |
| 8353693 | Fluid machine A fluid machine includes an inflow passageway arranged and configured to introduce fluid from outside into inner and outer fluid chambers of a first eccentric rotation mechanism, a communication passageway arranged and configured to introduce fluid discharged from t... | 01/15/2013 |
| 8323009 | Rotary-type fluid machine A rotary-type fluid machine includes a compression mechanism having piston mechanisms arranged one on top of the other and a drive mechanism having a drive shaft that is configured and arranged to drive the piston mechanisms. Each of the two piston mechanisms includ... | 12/04/2012 |
| 8172560 | Fluid machinery having annular back pressure space communicating with oil passage A fluid machinery includes a rotary mechanism, an annular back pressure chamber and an oil passage. The rotary mechanism includes first and second cooperating members, each including an engaging member extending from an end plate, with the cooperating members being ... | 05/08/2012 |
| 7878778 | Rotary compressor having main bearing integrally formed with cylinder or piston serving as fixed side A rotary compressor includes a fixed side and a movable side that is eccentrically movable relative to the fixed side. The movable side moves in response to operation of a drive mechanism, which rotates a drive shaft. The fixed side has a main bearing formed as a un... | 02/01/2011 |
| 7806672 | Rotary compressor with pressing mechanism and adjusting mechanism to vary a magnitude of a load in response to a pressure difference between the suction fluid and discharge fluid In a compression mechanism of a rotary compressor, a cylinder chamber is defined by a cylinder and a second housing. A back surface side gap is defined between an end plate part of the cylinder and a flat plate part of a first housing. The first housing is provided ... | 10/05/2010 |
| 7789641 | Rotary blade compressor with eccentric axial biasing A sealing ring is provided between an end plate of an eccentric rotation body and a support plate so that a pressure of fluid at high pressure is allowed to work on the end plate, thereby allowing an axial-direction pressing force to work on the end plate. The seali... | 09/07/2010 |
| 7753663 | Mounting structure of discharge valve in rotary compressor A bolt hole receiving a fixing bolt is formed in a portion of an end plate overlapping an annular piston or a fixed wrap as viewed in a thickness direction of the end plate to open at the back face of the end plate. In fixing a discharge valve to the end plate, the ... | 07/13/2010 |
| 7588428 | Rotary fluid device performing compression and expansion of fluid within a common cylinder A rotary fluid device includes a cylinder having an annular cylinder chamber and an annular piston, which is disposed in the cylinder chamber to be eccentric relative to the cylinder. The annular piston divides the cylinder chamber into an outer working chamber and ... | 09/15/2009 |
| 7553141 | Rotary fluid machine with a suction shutoff angle of the outer cylinder chamber being greater than a suction shutoff angle of the inner cylinder chamber A rotary fluid machine includes an eccentric rotary piston mechanism that is configured such that an annular piston is accommodated in an annular cylinder chamber of a cylinder to form an outer cylinder chamber and an inner cylinder chamber. The cylinder and the ann... | 06/30/2009 |
| 7549851 | Rotary fluid machine having a pair of rotation mechanisms and a partition plate disposed between the rotation mechanisms A rotary fluid machine includes a first rotation mechanism and a second rotation mechanism. Each of them includes a cylinder having a cylinder chamber and an annular piston which is contained in the cylinder chamber and divides the cylinder chamber into an outer wor... | 06/23/2009 |
| 7549850 | Rotary mechanism A rotary mechanism (10) has an annular (chamber 12) defined by an inner wall (16) of housing (11). A symmetrical two lobed rotor (15) has opposing side faces (21a, 21b) a longitudinal axis between apices... | 06/23/2009 |
| 7534100 | Rotary fluid machine A rotary fluid machine is provided with a cylinder having an annular cylinder chamber, an annular piston and a blade that form a rotation mechanism. The piston is disposed in the cylinder chamber to be eccentric to the cylinder and divides the cylinder chamber into ... | 05/19/2009 |
| 7500836 | Compressor A compressor has a cylindrical sealed container, a compression mechanism and a motor. The compression mechanism has a cylinder with an intake passage passing through the cylinder in the radial direction. The sealed container has a coupling member having a tip end fa... | 03/10/2009 |
| 7435065 | Rotary fluid machine having a swinging bushing with a swing center disposed radially inwardly of an annular midline of an annular piston A rotary fluid machine includes an eccentric rotary piston mechanism that is configured such that an annular piston is accommodated in an annular cylinder chamber of a cylinder to form an outer cylinder chamber and an inner cylinder chamber. The cylinder and the ann... | 10/14/2008 |
| 7419371 | Scroll fluid machine In a scroll fluid machine, a driving shaft extends axially to allow an orbiting scroll to revolve with respect to a fixed scroll thereby compressing a gas introduced from the outer circumference of the fixed scroll in a compressing chamber formed between the orbitin... | 09/02/2008 |
| 7381038 | Capacity-changing unit of orbiting vane compressor Disclosed herein is a capacity-changing unit of an orbiting vane compressor that is capable of performing normal operation and no-load operation in inner and outer compression chambers through simple manipulation of a rotary valve plate, thereby easily changing the ... | 06/03/2008 |
| 7374410 | Low-pressure type orbiting vane compressor Disclosed herein is a low-pressure type orbiting vane compressor that is capable of diverging low-temperature and low-pressure refrigerant gas introduced into a shell through an inlet tube to an inlet port of a cylinder and a drive unit so as to simultaneously compr... | 05/20/2008 |
| 7367790 | Double-acting type orbiting vane compressor The double-acting type orbiting vane compressor comprises an orbiting vane having upper and lower circular vanes formed at the upper and lower surfaces of a vane plate of the orbiting vane, respectively, the orbiting vane being attached to a crankshaft rotatable by ... | 05/06/2008 |
| 7364417 | Compression unit of orbiting vane compressor Disclosed herein is a compression unit of an orbiting vane compressor having improved tight contact between a circular vane and sealing means wherein the sealing means can be easily manufactured. The compression unit compresses refrigerant gas introduced by an orbit... | 04/29/2008 |
| 7361003 | Slider adapting apparatus for orbiting vane compressors Disclosed herein is a slider adapting apparatus for orbiting vane compressors. A circular vane of an orbiting vane is disposed in an annular space defined in a cylinder. A pair of sliders is coupled with the circular vane for performing reciprocating movement along ... | 04/22/2008 |
| 7361004 | Compression unit of orbiting vane compressor Disclosed herein is a compression unit of an orbiting vane compressor. The compression unit comprises a circular operation space formed in a cylinder, the circular operation space having opposite ends, a circular vane disposed in the operation space for performing a... | 04/22/2008 |
| 7341437 | Capacity-changing unit of orbiting vane compressor Disclosed herein is a capacity-changing unit of an orbiting vane compressor that is capable of selectively accomplishing compression or communication in inner and outer compression chambers of a cylinder through simple manipulation of a valve, thereby easily changin... | 03/11/2008 |
| 7329107 | Oil supply structure for slider of orbiting vane compressor Disclosed herein is an oil supply structure for a slider of an orbiting vane compressor capable of providing effective lubrication to reciprocating surfaces of the slider reciprocating in an annular space of a compressor cylinder. The oil supply structure comprises ... | 02/12/2008 |
| 7300266 | Orbiting vane compressor incorporating orbiting vane with oil supply function Disclosed herein is an orbiting vane compressor incorporating an orbiting vane with oil supply function that is capable of performing more smooth orbiting movement. The orbiting vane has a compression unit comprising an orbiting vane having a boss formed in the cent... | 11/27/2007 |
| 7029252 | Rotary compressor The outer peripheral surface of a swing piston is formed in a non-circular form. The inner peripheral surface of a cylinder chamber is formed on a basis of an envelope curve of the outer peripheral surface of the swing piston obtained at the time of its swing. The o... | 04/18/2006 |
| 7014435 | Scroll fluid machine A scroll fluid machine comprises a stationary scroll and an orbiting scroll fitted on an eccentric portion of a driving shaft. The stationary scroll has a stationary end plate from which inner and outer stationary wraps project, and the orbiting scroll has an orbiti... | 03/21/2006 |
| 6922999 | Single-winding multi-stage scroll expander A single-winding multi-stage expander comprises a fixed scroll and an orbiting scroll which revolves eccentrically with respect to the fixed scroll so as to pressurize a sealed chamber formed between the two scrolls to drive a crankshaft. A high-temperature pressuri... | 08/02/2005 |
| 6709248 | Scroll-type fluid machine having an outer chamber and an inner chamber A scroll-type fluid machine includes a fixed scroll having spiral-form fixed wraps standing on one side face and an orbiting scroll having spiral-form orbiting wraps standing on one side face facing the fixed scroll. The orbiting scroll is set up on a drive shaft so... | 03/23/2004 |
| 6676392 | Small-sized compressor A small-sized, efficient compressor has a compressed air tank, a first housing provided with a shaft bore, a rotating shaft, an orbiter, a second housing, a rotation restrainer and a circular vane. The orbiter is provided at a lower portion thereof with a... | 01/13/2004 |
| 6425744 | Helical blade type compressor having a helical blade in a stationary cylinder A helical blade type compressor is comprising a stationary cylindrical body, a closed-ended cylinder eccentrically arranged surrounding the cylindrical body, a helical compression section including a helical blade serving to divide the free space between ... | 07/30/2002 |
| 6203301 | Fluid pump Disclosed is a fluid pump comprising: a camshaft eccentrically connected to a rotating shaft of a motor to be eccentrically rotated by rotation of the motor; a rotor coupled to three crankshafts to revolve along a predetermined orbit by eccentric rotation... | 03/20/2001 |
| 5472327 | Rotary compressor with improved fluid inlet porting A rotary compressor having a housing with a pump cavity, an orbiting ring piston in the cavity, a cylindrical post carried by the housing within the orbiting ring, at least one pair of vanes engaging the orbiting ring to define pumping chambers in the cav... | 12/05/1995 |
| 5399076 | Rolling piston compressor A rolling piston type compressor of a simplified design having a single rolling piston, capable of reducing a variation in torque. The compressor has a housing in which a rolling piston 42 is arranged so that an orbital movement of the rolling piston is o... | 03/21/1995 |
| 5383773 | Orbiting rotary compressor having axial and radial compliance An orbiting rotary-type compressor including an orbiting cylindrical piston member, sealing members, cylinder housing, Oldham ring assembly and motor for permitting orbital movement. Sealing is achieved by a sliding vane moving through the orbiting piston... | 01/24/1995 |
| 5346374 | Rotating spiral pump with cooling between radial steps A rotating spiral pump comprises a housing in which two displacement disks are rotatably disposed. The two displacement disks are provided on one side with ribs that extend in spiral fashion and interlock for the purpose of forming pumping chambers, and s... | 09/13/1994 |
| 5302095 | Orbiting rotary compressor with orbiting piston axial and radial compliance An orbiting rotary-type compressor including an orbiting cylindrical piston member, sealing members, cylinder housing, Oldham ring assembly and motor for permitting orbital movement. Sealing is achieved sliding vanes within slots in the cylinder housing w... | 04/12/1994 |
| 5284426 | Rotary compressor with multiple compressor stages and pumping capacity control A multiple stage rotary compressor having a housing with a pump cavity, an orbiting ring piston in the cavity, a cylindrical post carried by the housing within the orbiting ring, a pair of vanes engaging the outer surface of the orbiting ring to define a ... | 02/08/1994 |
| 5154591 | Displacement machine employing a plurality of intermeshing spiral displacement bodies A displacement machine for compressible media includes a stationary housing, and a plurality of disks mounted for eccentric movement within the housing. Each of the disks has two symmetrically disposed spiral displacement bodies that are offset from one a... | 10/13/1992 |
| 5135368 | Multiple stage orbiting ring rotary compressor A gas compressor includes a housing defining a compression chamber, a crankshaft having an eccentric surface radially offset from the axis of rotation of the crankshaft, an orbiting ring rotatably mounted on the eccentric for rotation about an axis offset... | 08/04/1992 |
| 5015161 | Multiple stage orbiting ring rotary compressor A gas compressor includes a housing defining a compression chamber, a crankshaft having an eccentric surface radially offset from the axis of rotation of the crankshaft, an orbiting ring rotatably mounted on the eccentric for rotation about an axis offset... | 05/14/1991 |
