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Match Document Document Title
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...
7371059 Scroll compressor with discharge valve  
A scroll compressor utilizes scroll wrap profiles which are designed with a rapid compression scroll wrap profile. This profile utilizes a shorter wrap and lower vane aspect ratios during the...
7364418 Scroll fluid machine having an adjustment member with a deformable element  
A scroll fluid machine includes a stationary scroll having a spiral wrap formed on an end plate and a moving scroll having a spiral wrap formed on an end plate. A polymer actuator for adjusting the...
7344365 Scroll compressor with bypass holes communicating with an intake chamber  
A scroll compressor includes a first scroll and a second scroll. The first scroll has a step portion that separates an elevated portion and a recessed portion of a surface of the first scroll. A...
7341439 Scroll fluid machine having an adiabatic expansion chamber  
A scroll fluid machine comprises a driving shaft having an eccentric axial portion at one end; a fixed scroll having a fixed wrap; and an orbiting scroll having an orbiting wrap and rotatably...
7341438 Scroll-type fluid machine including passage formed in movable scroll  
A fluid machine includes a stationary scroll member and a movable scroll member. A second tooth portion of the movable scroll member is arranged to be revolved with respect to a first tooth portion...
7338264 Recesses for pressure equalization in a scroll compressor  
A scroll compressor is provided with spaced grooves in a base of one of the two scroll members. A recess is formed in a wrap tip of the other scroll member. The recess in the wrap tip bridges a...
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...
7335004 Apparatus for varying capacity in scroll compressor  
An apparatus for varying the capacity in a scroll compressor, the apparatus having an orbiting scroll provided with a wrap filling portion which is stepped at a certain height, extending the entire...
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...
7316549 Step-type capacity varying apparatus of scroll compressor  
Disclosed is a step-type capacity varying apparatus of a scroll compressor comprising: an orbiting scroll having a first filling portion step-formed with a constant height from an outer end portion...
7278833 Hybrid compressor  
A hybrid compressor includes a first compression mechanism, which is driven by a first drive source, a second compression mechanism, which is driven by a second drive source, and a communication...
7255543 Scroll compressor and air-conditioning system for vehicle using the scroll compressor  
A scroll compressor has a housing, in which are provided fixed and movable scrolls for cooperatively compressing working fluid containing lubricating oil, an oil chamber storing the oil separated...
7238011 Scroll compressor  
A scroll compressor has a fixed scroll including a fixed spiral wall and a movable scroll including a movable spiral wall. Inner end portions of the fixed and movable spiral walls each have an...
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...
7229261 Scroll compressor having an annular recess located outside an annular seal portion and another recess communicating with suction port of fixed scroll  
A surface of a fixed scroll which is opposed to a end plate of an orbiting scroll existing outside of a lap of the fixed scroll is formed with: a substantially annular seal portion which extends...
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...
7210913 Scroll fluid machine with a silencer  
A scroll fluid machine comprises a housing, a drive shaft, a stationary scroll fixed to the housing, and an orbiting scroll driven by the drive shaft. A gas from the outer circumference of the...
7201568 Scroll fluid machine  
A scroll fluid machine has a low-pressure stage compression part for compressing a fluid sucked in from the outside between mutually overlapping wrap portions of two scroll members performing a...
7189066 Light gas vacuum pumping system  
A vacuum pumping system includes a primary vacuum pump having an inlet for coupling to a system, and a secondary vacuum pump having an inlet coupled to the exhaust of the primary vacuum pump. The...
7179067 Scroll compressor with wrap walls provided with an abradable coating and a load-bearing surface at radially outer locations  
An abradable coating is formed on portions of the flank wall of the wraps of a scroll compressor. The radially outer portions of the flank wall are left uncoated, and can bear a force between the...
7124585 Scroll-type expander having heating structure and scroll-type heat exchange system employing the expander  
The present invention provides a scroll-type expander that simultaneously performs expansion and re-heating such that efficient expansion is realized and there is no reduction in efficiency caused...
7121817 Scroll fluid machine comprising compressing and expanding sections  
A scroll fluid machine comprises an orbiting scroll and front and rear stationary scrolls. The orbiting scroll is driven by a driving shaft via an eccentric portion and has front and rear orbiting...
7104060 Exhaust energy recovery system for combustion engine  
An exhaust energy recovery system for a combustion engine having an exhaust passage has a displacement expansion device and a generator. The expansion device is located in the exhaust passage....
7100386 Economizer/by-pass port inserts to control port size  
Compressor performance is affected by the size of an economizer or by-pass port area. To achieve variation in size, an insert is inserted into an economizer and/or unloader flow passage to provide...
7086844 Multi-stage scroll fluid machine having a set a seal elements between compression sections  
To provide a seal configuration which prevents leakage of high pressure compressed fluid from a succeeding stage compression section to a preceding stage compression section of a multistage...
7086151 Powder metal scrolls  
Scrolls made from one or more near-net shaped powder metal processes either wholly or fabricated together from sections. Both “conventional” press and sinter methods and metal injection molding...
7074023 Scroll compressor  
A scroll compressor enabling decrease of a flow path loss in a communication groove extending from a suction port toward a suction chamber to decrease a loss of suction power is disclosed. In the...
7029251 Backpressure mechanism of scroll type compressor  
A backpressure mechanism for a scroll type compressor to effectively prevent leakage of coolant; a recessed seat being provided at the top of a coolant passage at the center of a fixed scroll; a...
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...
7001161 Scroll fluid machine  
To offer the seal configuration which prevents the leakage of high pressure compressed fluid from the succeeding stage compression section to the preceding stage compression section of a multistage...
6971862 Appartus for preventing overheat of scroll compressor  
An apparatus for preventing overheat of a scroll compressor comprising: an overload preventing device for connecting or cut off a power source by a temperature and a current; a valve housing formed...
6969243 Scroll compressor with recess on crankcase or orbiting scroll  
A scroll compressor has a recess cut into a surface of a crankcase or an orbiting scroll while there is no material removed next to the seals that seal refrigerant in the back chamber located...
6948922 Hermetic compressor and open compressor  
The present invention provides a hermetic or open compressor for hydrocarbon refrigerant having high reliability. According to the present invention, in the compressor using hydrocarbon as...
6939116 Scroll compressor  
In a scroll compressor, a sliding direction of a Oldham coupling is defined such that an acting direction of an inertia force of the Oldham coupling is substantially opposite to an acting direction...
6916162 Scroll compressor  
A scroll compressor which comprises a scroll assembly comprising two scroll walls, and a drive for causing a relative orbiting motion between the scroll walls for compressing fluid on two fluid...
6912871 Structure for reducing refrigerant flow loss in compressor  
A structure for reducing a refrigerant flow loss in a compressor includes a refrigerant flow resistance reducing unit to reduce a refrigerant channel resistance at a lower surface of a rotor facing...
6887052 Scroll wrap tip with abradable selectively applied coating and load-bearing surface  
A scroll compressor is provided with a generally spiral wrap having an abradable or conformable coating on radially inner portions of its tip. The coating is not applied to radially outer portions....
6887051 Scroll air supply apparatus having a motor shaft and a mechanism shaft  
It is an object of the present invention to provide an air supply apparatus capable of increasing a height of a scroll lap. The air supply apparatus comprising a stator fixed to a motor frame, a...
6884047 Compact scroll pump  
A compact scroll pump includes a scroll set having an inlet and an outlet, and a drive mechanism. The scroll set includes a stationary scroll blade extending from a stationary plate and an orbiting...
6860728 Scroll compressor sealing  
A scroll compressor comprises a fixed scroll having a spiral-shaped wall body, and a swiveling scroll which has a spiral-shaped wall body and revolves while linking together the two wall bodies;...
6814554 Vortex compressor  
An improved structure of vortex compressor provided with at least one threaded hole to the positioning pillar of a frame, a retainer packing locked with the screw to the frame to define an ideal...
6808373 Scroll fluid machine having projections on a wrap peripheral surface  
Inner peripheral projections are provided on the inner peripheral surface of a wrap portion of an orbiting scroll member, and outer peripheral projections are provided on the outer peripheral...
6783338 Scroll type compressor having tip seals and a scroll coating layer  
A scroll type compressor has a housing, a fixed metal scroll member and a movable metal scroll member. The fixed and the movable scroll members each have a base plate and scroll wall extending...
6776592 Scroll type compressor  
In a region where heat deformation of a movable scroll spiral wall and/or a fixed scroll spiral wall for a scroll type compressor is relatively large, a relieving part is formed for relieving the...
6773242 Scroll compressor with vapor injection  
A scroll compresssor incorporates a vapor injection system where only one vapor injection port is utilized. The single vapor injection port injects refrigerant vapor into two of the initially...
6758658 Scroll compressor  
In a scroll compressor equipped with fixed scroll member 1 and orbiting scroll member 2 having step portions 4, a convex side end of at least one step portion of each of scroll members 1 ...
6746224 Scroll compressor  
In a scroll compressor furnished with a fixed scroll and an orbiting scroll, and provided with steps on end plates of the fixed scroll and the orbiting scroll, formed such that the height thereof...
6736622 Scroll compressor with offset scroll members  
A scroll compressor having a hybrid wrap is defined to have its wrap origin offset from a drive center of both the orbiting and non-orbiting scroll members. The offset is selected in a direction...
6736621 Scroll compressor with adjustable capacity  
A scroll compressor includes an adjustable actuator mount that changes the relative position of a non-orbiting scroll and an orbiting scroll to change the compressor capacity. In one embodiment,...
Matches 1 - 50 out of 341 1 2 3 4 5 6 7 >