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| Number | Title | Issue Date |
| 8186980 | Scroll-type fluid machine that reduces centrifugal force of an orbiting scroll A scroll-type fluid machine comprising: a casing; a fixed scroll; an orbiting scroll; and an auxiliary crank device in which to prevent the orbiting scroll from being rotated, wherein the auxiliary crank device comprises: a fixed-side bearing body provided on either... | 05/29/2012 |
| 8096792 | Scroll type fluid machine with a rotation preventing cylindrical member The present invention provides a scroll type fluid machine realizing reduced attachment space in a casing and improvement in workability at the time of assembly and the like by using a plurality of ball coupling mechanisms. A plurality of ball coupling mechanisms ar... | 01/17/2012 |
| 8007260 | Scroll fluid machine having a coupling mechanism to allow relative orbiting movement of scrolls A scroll fluid machine has a stationary scroll having a stationary scroll lap fixed to a scroll casing and an orbiting scroll having an orbiting scroll lap that orbits relative to the stationary scroll lap. The stationary and orbiting scrolls are connected via a cou... | 08/30/2011 |
| 7976294 | Scroll fluid machine having stationary and orbiting scrolls having a coupling mechanism to allow the orbiting scroll to orbit relative to the second scroll A scroll fluid machine has a stationary scroll having a stationary scroll lap and an orbiting scroll having an orbiting scroll lap that orbits relative to the stationary scroll lap. The orbiting scroll lap engages with the stationary scroll lap to form a closed comp... | 07/12/2011 |
| 7918658 | Non symmetrical key coupling contact and scroll compressor having same A scroll compressor includes a movable scroll compressor body and a fixed scroll compressor body that are arranged for relative orbital movement relative to one another to facilitate compression of refrigerant. To guide the orbital movement, a Oldham key coupling is... | 04/05/2011 |
| 7905716 | Scroll compressor A scroll compressor includes an orbiting scroll engaged with a front case by pins and rings or ring holes to prevent rotation of the orbiting scroll. The rings or the ring holes have such an inside diameter that an orbiting radius defined by the pins and the rings o... | 03/15/2011 |
| 7871254 | Magnetic bearing and coupling device A follower shaft is rotatably supported coaxially with a driving shaft. An inner rotary permanent magnet having poles in a radial direction is fixed around an outer circumference of the end of the follower shaft. On the inner circumferential surface of a cylindrical... | 01/18/2011 |
| 7850438 | Scroll fluid machine with back pressure chamber sealing To provide a scroll type fluid machine which can ensure that even when the pressure ratio of the pressure P1 of its high pressure chamber (back pressure chamber) to the pressure P2 of its low pressure chamber (P1/P2) is low, its orbiting ... | 12/14/2010 |
| 7789640 | Scroll fluid machine with a pin shaft and groove for restricting rotation A fixed scroll (60) is provided with a pin shaft portion (70) which is formed in a cylindrical shape. Formed in a movable scroll (50) is a slide groove (80) which extends in the radial direction of the movable scroll (50). The pin ... | 09/07/2010 |
| 7736135 | Structure for controlling lubricant's flow rate in scroll compressor A scroll compressor including a block, a fixed scroll, an orbiting scroll, a crankshaft, an Oldham ring and an oil passage is provided, wherein the fixed scroll is fixed on the block, and the orbiting scroll, the crankshaft and the Oldham ring are disposed on the bl... | 06/15/2010 |
| 7713038 | Scroll fluid machine A scroll fluid machine comprises a driving shaft in a housing. An orbiting scroll is eccentrically revolved around an eccentric axial portion of the driving shaft via a bearing. Air is introduced from outside through an intake port of a circumferential wall of the h... | 05/11/2010 |
| 7686599 | Scroll compressor with device to limit orbit radius A scroll compressor has a device which may be actuated to limit the orbit radius of the orbiting scroll. The device is moveable between an unactuated position at which it is spaced from a hub for the scroll compressor, and an actuated position at which it limits the... | 03/30/2010 |
| 7654805 | Scroll compressor with an anti-rotation mechanism A scroll compressor includes a fixed scroll, an orbiting scroll structuring an operation chamber for a fluid with the fixed scroll and compressing the fluid in the operation chamber by orbiting relative to the fixed scroll, a shaft having an eccentric portion connec... | 02/02/2010 |
| 7641455 | Scroll compressor with reduced oldham ring noise Impulsive sound of an Oldham ring is reduced and a driving noise of a scroll compressor is prevented from increasing. When a width of the key of the Oldham ring made of iron-based material is defined as t and a width of the orbiting-side key groove in the back surfa... | 01/05/2010 |
| 7594803 | Orbit control device for a scroll compressor An orbit control device for a scroll compressor is disclosed including at least one pin disposed in an orbit scroll, a support plate having at least one support hole formed therein, and a guide plate having at least one guide hole formed therein. Contact of an outer... | 09/29/2009 |
| 7497674 | Scroll compressor having shoulder and rotation-preventing portions positioned as different phases A scroll compressor prevents the rotation of an orbiting scroll and reduces manufacturing cost. This scroll compressor has a housing, a fixed scroll having a first end plate and a first spiral wall body, an orbiting scroll having a second end plate and a second spir... | 03/03/2009 |
| 7467933 | Scroll-type fluid displacement apparatus with fully compliant floating scrolls A central drive shaft-sliding knuckle combined with a peripheral crank pin-swing link mechanism (CSPS) to provide an orbiting scroll with radial and axial compliant capability. The CSPS mechanism can be applied to both dual floating scroll and single floating scroll... | 12/23/2008 |
| 7404706 | Scroll fluid machine having oil-supply holes being formed through a reinforcement bearing plate on a rear surface of the orbiting scroll A scroll fluid machine comprises a fixed scroll, an orbiting scroll and a plurality of self-rotation preventing device for preventing the orbiting scroll from rotating on its own axis. On the rear surface of the orbiting scroll, a reinforcement bearing plate is fixe... | 07/29/2008 |
| 7390179 | Scroll machine having counterweights with changeable cavity A balancing system for different compressors utilizes a counterweight having a common exterior configuration. The mass of the counterweight is optimized for each compressor by changing the size of a recess located in the counterweight. In one embodiment, the recess ... | 06/24/2008 |
| 7377759 | Scroll fluid machine with a self-rotation-preventing device having ears for an orbiting scroll In a scroll fluid machine, an orbiting scroll is revolved with respect to a fixed scroll in a housing. A self-rotation-preventing device is provided to prevent the orbiting scroll from rotating on its own axis. The device comprises a pair of holders, one of which is... | 05/27/2008 |
| 7357627 | Scroll fluid machine In a scroll fluid machine, a stationary scroll fixed to a housing engages with an orbiting scroll to form a sealed chamber between the orbiting and stationary scrolls. Fluid in the sealed chamber is compressed or decompressed with revolution of the orbiting scroll w... | 04/15/2008 |
| 7341440 | Scroll compressor A scroll compressor includes an orbiting scroll having a compressor chamber in an upper portion thereof and a bypass passage formed through upper and lower ends of a body thereof, a fixed scroll that allows the orbiting scroll to orbit therein to compress a coolant,... | 03/11/2008 |
| 7338263 | Method and apparatus for compressor re-manufacture In a method of repairing a scroll compressor, the casing 100 of the compressor is cut open by making two transverse cuts through the casing to give access to the internal components of the compressor. The casing 100 is then resealed, using two annular ... | 03/04/2008 |
| 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 |
| 7318710 | Fixed scroll of scroll compressor Disclosed herein is a fixed scroll of a scroll compressor capable of preventing gaseous refrigerant, that is heated in the compressor or contains a large amount of oil scatted in a compression unit, from being introduced into a compression chamber. The fixed scroll ... | 01/15/2008 |
| 7318711 | Oil supply structure of scroll compressor Disclosed herein is an oil supply structure of a scroll compressor capable of preventing a sludge clog phenomenon in a fine hole of an oil supply screw. The oil supply structure comprises a backpressure space defined between an orbiting scroll and a main frame of th... | 01/15/2008 |
| 7316550 | Scroll compressor A scroll compressor, which allows refrigerant in a compressor chamber to be partially discharged so that frictions generated in frictional surfaces between an orbiting scroll and an Oldham ring and between the Oldham ring and a main frame may be decreased. Also, an ... | 01/08/2008 |
| 7314356 | Fluid machine An outer end of a seal element for a fixed scroll is extended to a position close to an end of an inside spiral wall of the fixed scroll, and an outwardly extended portion is formed at an outer periphery of a disc-shaped base plate of a movable scroll, so that a bot... | 01/01/2008 |
| 7314358 | Scroll fluid machine having an adjustment member for correcting an error in orbiting motion between fixed and orbiting scrolls A scroll fluid machine comprises a fixed scroll, an orbiting scroll and a self-rotation-preventing device for preventing the orbiting scroll from rotating on its own axis. The self-rotation-preventing device comprises a bearing in a support hole of the orbiting scro... | 01/01/2008 |
| 7309220 | Back pressure apparatus for orbiting vane compressors Disclosed herein is a back pressure apparatus for orbiting vane compressors that is capable of reducing excessive axial force applied to an orbiting vane due to high-pressure refrigerant gas introduced to the lower surface of a vane plate of the orbiting vane. The b... | 12/18/2007 |
| 7306439 | Orbiting scroll in a scroll fluid machine A scroll fluid machine includes an orbiting scroll which has an orbiting end plate. The orbiting end plate has a plurality of extensions on the outer circumference. Each of the extensions has a boss in which a self-rotation-preventing eccentric shaft is pivotally su... | 12/11/2007 |
| 7300265 | Flanged sleeve guide A scroll machine includes a shell and a pair of scroll members. At least one of the scroll members disposed in the shell is mounted for axial movement with respect to the other scroll member disposed in the scroll. The amount of axial movement of at least one scroll... | 11/27/2007 |
| 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 |
| 7296982 | Air supply device An air supply device includes a plurality of bearings for rotatably supporting a shaft, a plurality of bearings for rotatably supporting an orbital scroll, and a plurality of bearings for rotatably supporting each of a plurality of rotation constraint members that p... | 11/20/2007 |
| 7261528 | Scroll pump with load bearing synchronization device Scroll pumping apparatus includes a first scroll element and a second scroll element, a drive mechanism operatively coupled to the second scroll element for producing orbiting motion of the second scroll element relative to the first scroll element, and a synchroniz... | 08/28/2007 |
| 7244113 | Scroll pump with controlled axial thermal expansion Vacuum pumping apparatus includes a pump frame, a stationary scroll element secured to the pump frame, the stationary scroll element including a stationary scroll blade, an orbiting scroll element including an orbiting scroll blade intermeshed with the stationary sc... | 07/17/2007 |
| 7234923 | Scroll fluid machine having a dust seal fitted within annular groove and having ends overlapped in the wider portion of the annular groove In a scroll fluid machine, an orbiting scroll engages with a stationary scroll to form a sealed chamber in which fluid can be compressed toward a center with revolution of the orbiting scroll with respect to the stationary scroll. An annular groove is formed near th... | 06/26/2007 |
| 7232296 | Serviceability features for a scroll fluid machine A scroll fluid machine comprises an orbiting scroll and a stationary scroll. The orbiting scroll comprises an orbiting end plate having an orbiting wrap, and the stationary scroll comprises a stationary end plate having a stationary wrap. The orbiting scroll is supp... | 06/19/2007 |
| 7228710 | Indentation to optimize vapor injection through ports extending through scroll wrap A scroll compressor is provided with economizer injection ports, which extend through the wrap of one of the scroll members. Preferably the injection ports are formed through a so-called “hybrid” wrap, which has a varying thickness. The other scroll member is pr... | 06/12/2007 |
| 7223083 | Scroll compressor A scroll compressor is disclosed. In the scroll compressor, a first compression chamber is formed between an orbiting scroll and a fixed scroll, and a second compression chamber is additionally formed between the orbiting scroll and the main frame. Accordingly, when... | 05/29/2007 |
