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8991300 Variable displacement swash plate type compressor  
The present invention provides a variable displacement swash plate type compressor that reduces wear of cylinder bores and the amount of blow-by gas. Each piston of the compressor has a piston...
8985009 Sliding element with exposed functional surface  
The invention relates to a sliding element, which comprises a support and a coating applied by means of thermal spraying on the support, wherein the coating comprises at least two phases and at...
8939063 Hydraulic engine with infinity drive  
A system comprises a first piston comprising a first piston shaft and a first drive pin. A first piston cylinder comprises a first body and a first groove, wherein the first groove defines a first...
8899943 Double-headed piston type swash plate compressor  
A double-headed piston type swash plate compressor is provided with a front housing including a suction chamber, a rear housing, a cylinder block, a rotation shaft, and double-headed pistons. The...
8794124 Hydraulic pump or motor  
The present embodiments disclose an axial hydraulic pump including a residual pressure regenerating circuit (30) which is a pipe line communicating with a top dead center side communication port...
8783161 Wobble plate type variable displacement compressor  
Disclosed is a wobble plate type variable displacement compressor that uses a constant velocity universal joint mechanism, which comprises an inner ring and an outer ring, balls that are held...
8720316 High-pressure fuel pump  
A high-pressure fuel pump includes a housing and a swash plate which is mounted in the housing and is arranged in an oil space of the housing. A drive shaft is connected to the swash plate and...
8668469 Hydraulic piston pump with reduced restriction barrel passage  
The present disclosure sets forth an axial piston pump with greatly improved throughput. The axial piston pump provides cylinders, antechambers, and fluid flow apertures which are uniquely shaped...
8627758 Axial piston pump with pistons having metallic sealing rings  
An axial piston pump, comprising a cylinder block having one or more cylinder bores; and one or more piston assemblies; wherein number of piston assemblies matches number of cylinder bores;...
8621977 Reciprocating piston engine  
A reciprocating piston engine, particularly a coolant compressor for motor vehicles, includes at least one piston movably supported in a cylinder. A pivot element in the form of a pivot ring is...
8549985 Wabble plate type variable displacement compressor  
A compressor reciprocates pistons via a wabble plate wabbled while being prevented from rotating. A wabble plate rotation preventing mechanism is constructed as a mechanism comprising an inner...
8485794 Reciprocating compressor with rotary valve  
According to the present invention, a reciprocating compressor with a rotary valve comprises a cylinder block with plural cylinder bore, a drive shaft which is supported and permitted to rotate in...
8475141 Pump assembly for high pressure cleaners  
A pump assembly 10 for high pressure cleaners having a pump body 12 encasing the free end 14 of a motor shaft provided with a keyed-on wobble plate 16 which moves one or more than one axial...
8430018 Device for coupling a piston to an annular disk  
A device for coupling a piston to an annular disc, in particular to a captive C-washer/swash plate or to a pivot ring of the working unit of a reciprocating-piston machine, preferably of a...
8419382 Piston compressor  
A compressor includes a rotary shaft, a cam, a cylinder block, pistons, a thrust bearing, a rotary valve, and an oil passage. The rotary shaft has an in-shaft passage formed therein. The in-shaft...
8348631 Lubricant or hydraulic pump  
The invention relates to a lubricant or hydraulic pump for delivering oil or the like having a housing which is formed from two housing shells which are of at least substantially similar or...
8333571 Pump having pulsation-reducing engagement surface  
A pump is disclosed. The pump may have a housing, and a body disposed within the housing and at least partially defining a plurality of barrels. The pump may also have a plurality of plungers...
8327751 Wabble plate type variable displacement compressor  
A wabble plate type variable displacement compressor comprises a rotation preventing mechanism of the wabble plate which includes (a) an inner ring provided movably in the axial direction although...
8322270 Reciprocating piston machine  
A reciprocating piston machine, such as an air-conditioning compressor for motor vehicles, having a housing, a rotationally drivable shaft, a shaft sealing device, in particular a mechanical shaft...
8276503 Axial piston machine  
An axial piston machine includes a housing and pistons situated in cylinder bores of a rotatable cylinder member, which pistons are supported on a pivoting cradle, the pivoting cradle being...
8272315 Dual pump  
A dual pump apparatus having two pumps mounted in a housing, where the housing comprises two elements mounted on opposite sides of a hydraulic mounting member or center section. The pumps are...
8267006 Axial piston machine  
An axial piston intended for an axial piston machine and comprised of at least two components forming a driving part and a compressing part. To enable manufacture of the axial piston in an easy...
8262368 Hydraulic piston machine  
A hydraulic piston machine includes a plurality of pistons (12, 14) which are driven by a drive/output shaft (40), guided in an axially displaceable manner in a piston barrel (4) of a housing (2),...
8230773 Axial piston compressor, in particular a compressor for the air conditioning system of a motor vehicle  
Axial piston compressor, especially a compressor for the air-conditioning system of a motor vehicle, having a housing and, for drawing in and compressing a coolant, a compressor unit arranged in...
8197229 Double-headed piston type compressor  
A double-headed piston type compressor includes front and rear housings, a cylinder block defining therein a crank chamber and a plurality of cylinder bores and having a shaft hole therethrough, a...
8147214 Compressor  
Provided is a compressor having an enhanced capability of supplying oil to a thrust bearing and a radial bearing which are interposed between a center through-hole in a cylinder block and a...
8137078 Axial piston machine  
An axial piston machine, especially an air-conditioning compressor for motor vehicles, including a power unit which is rotatably driven by a shaft and in which the rotary movement is converted,...
8133036 Fluid powered motor  
A low pressure fluid powered motor or pump comprises a non-rotatable cover (k); an undulating lobe cam track (e) attached to the cover (k) and defining multiple crests and troughs; a rotatable...
8118566 Piston compressor with second intake  
In a piston-type compressor in which a working fluid is taken in through an intake port is first compressed with pistons and is then let out through an outlet port, an axial hole ranging along the...
8096228 Bent axis dual yoke hydromodule  
A bent axis hydromodule that has a yoke that is rotatable about trunnions and rotating kits having rotating kit shafts that are in fluid communication with the yoke. Servo piston porting is...
8092193 Self lubricating pump  
A self-lubricating water-cooled piston-style water pump has a unitary pump housing with a crankcase in direct water communication with the water pump inlet. A low pressure chamber is in direct...
8047166 Electric valve actuation system  
A machine includes a piston disposed in a housing and configured to reciprocate in the housing. At least one valve is coupled to the housing. A magnetically-geared valve actuation system is...
8047810 Double-headed piston type compressor  
A double-headed piston type compressor connected with an external device is provided. The compressor includes a plurality of cylinder bore pairs, double-headed pistons, a first rotary valve, a...
8037808 Axial piston machine  
An axial piston machine utilizing a swashplate design has a cylinder drum (3) that is mounted so that it can rotate around an axis of rotation (2). The cylinder drum (3) is provided with cylinder...
8007250 Compressor  
The present invention relates to a compressor, which includes a main refrigerant supply channel for supplying refrigerant by passing through the inside of a driving shaft and an auxiliary...
7997880 Compressor  
The present invention relates to a compressor, which can inhale refrigerant supplied to a swash plate chamber to cylinder bores through the inside of a driving shaft so that a flow channel...
7997879 Axial piston machine of swash-plate construction with a bearing arrangement of the cylinder block on a supporting journal  
An axial piston machine of swash-plate construction includes a cylinder block (2) rotatable in a housing (1) and supported in the axial direction against a valve plate (6a) arranged on a housing...
7988428 Axial piston machine  
A pressure pump in a primary liquid flow is combined with a pressure exchanger for energy recovery from a secondary liquid flow. A motor-driven rotor portion, including two (primary and secondary)...
7975600 Axial piston machine, recoil plate and method of manufacturing a recoil plate  
The invention relates to an axial piston machine, in addition to a swash-plate for said machine and a method for producing a swash-plate. The swash-plate (24) is configured as a disc and has a...
7963209 Water hydraulic machine  
Motor start circuit for an induction motor, particularly a single-phase AC induction motor, with a main winding (4) and an auxiliary winding (5), which are supplied with current, particularly...
7895934 Apparatus for generating electricity through oscillatory motion  
Disclosed is an apparatus and method for generating energy through oscillatory motion requiring little input. Oscillatory motion is generated using a substantially circular trough containing a...
7882779 Variable displacement inclined plate type compressor  
A variable displacement inclined plate type compressor comprising a spindle, an inclined plate provided to be inclinable relative to the spindle and rotating together with the spindle, a pair of...
7849783 Plastic shoes for compressors  
Embodiments of the present invention are disclosed herein. One embodiment of a bearing for a piston engine has a bearing made of a plastic material and having a substantially planar base and a...
7806667 Dual pump  
A dual pump apparatus having two pumps mounted in a housing, where the housing comprises two elements mounted on opposite sides of a hydraulic mounting member or center section. The pumps are...
7802512 Assembly structure of drive shaft and swash plate in swash plate type compressor  
Provided is an assembly structure of a drive shaft and a swash plate in a swash plate type compressor including a housing, a cylinder block having a plurality of cylinder bores, a drive shaft...
7743694 Axial piston machine  
An axial piston machine, in particular to an air-conditioning compressor for motor vehicles, including a drive unit for taking-in and compressing a pressure medium The drive unit is rotatably...
7731485 Reciprocating cylinder swash plate pump  
The invention relates to a hydraulic device having, in a housing, a rotor, which can rotate about a first axis, with pistons and chambers on both sides of the rotor, which can rotate about a...
7713610 Sliding member  
A sliding member includes convex portions are formed by directly quenching a sliding surface of a sliding member in a line shape or a dot shape, and concave portions are formed in indirectly...
7698989 Reciprocating piston machine  
A reciprocating piston machine, in particular a compressor, such as for the air conditioning system of an automotive vehicle. The machine includes a casing and at least one casing cover. A working...
7661937 Axial piston machine and a control plate for an axial piston engine  
The invention relates to a control plate (20) for an axial piston engine (1). The inventive control plate (20) comprises a through hole (38) and a radial internal edge of said control plate (20)...