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| Number | Title | Issue Date |
| 6997689 | Offset bearing for extended fuel pump life A bearing assembly (20) for a pump (12), e.g., an internal or external gear pump includes a journal bearing block (20) having a length, a width, and an axial centerline (CL′) passing through a center of the journal bearing block (20) wi... | 02/14/2006 |
| 6506512 | Compression regenerative machine for fuel cell A compression regenerative machine for a fuel cell according to the present invention comprises a displacement type compression mechanism portion C connected to an oxygen-containing gas supply side of a fuel cell F, and a displacement type regenerative me... | 01/14/2003 |
| 6264451 | Pump equipment with plural rotary pumps and method for assembling same In a pump equipment having plural rotary pumps, the respective discharge ports of the rotary pumps are located at the points which are nearly symmetrical with respect to the center axis of the drive shaft to counterbalance each other the respective reacti... | 07/24/2001 |
| 6171076 | Hermetic compressor assembly having a suction chamber and twin axially disposed discharge chambers A hermetic compressor assembly having a housing and a pair of spaced apart main bearings, disposed within the housing, which subdivide the housing into first and second discharge chambers, and a suction chamber. The suction chamber is disposed between the... | 01/09/2001 |
| 6050794 | Compressor having a pump with two adjacent rocking rotors A high-performance compressor is capable of preventing inadequate oil feed even if the compressor tilts or foams and it is also capable of reducing the amount of oil discharged. The compressor has a compression element and an electric element housed in a ... | 04/18/2000 |
| 5100308 | Vane pump with adjustable housing and method of assembly A vacuum vane pump wherein one or more stages are installed in an annular extension of the casing for the pump motor. Each stage has a rotor which is driven by the motor shaft by way of an elastic key, and an annular housing which surrounds and is eccentr... | 03/31/1992 |
| 4995804 | Apparatus for quantitatively extruding food material An apparatus for quantatively extruding food material is provided. In this apparatus the material is introduced into a space formed between the periphery of a drum and the side wall of a housing. The space is divided into sections defined by flanges, and ... | 02/26/1991 |
| 4889475 | Twin rotary compressor with suction accumulator A hermetically sealed twin rotary compressor is disclosed wherein a pair of rotary vane compressors are synchronously, coaxially coupled to respective axial ends of a drive motor by a quill disposed in a rotatable rotor thereof. The rotary compressor cran... | 12/26/1989 |
| 4772185 | Rotary vane pump having a plurality of inlet and outlet slots in a rotating sleeve A rotary vane vacuum pump assembly is disclosed which is characterized by the absence of the discharge of lubricating oil with the exhaust airstream, and which includes an internal stator and a surrounding rotor. Pivotal vanes are mounted on the interior ... | 09/20/1988 |
| 4659297 | Variable capacity vane motor having rotatable and stationary cam rings A vane motor is disclosed in which the volumetric displacement, torque, or speed are continuously adjustable. The vane motor includes a housing having a rotor and cam ring disposed axially around the rotor. The rotor includes vanes in radial slots which d... | 04/21/1987 |
| 4445830 | Radial vane pump having variable displacement A variable displacement vane pump includes a rotor (10) rotatably mounted in a casing (32). The casing (32) has a pair of relatively rotatable complementary cams (18,20). Each cam (18,20) has a surface shaped to provide an annular curvilinear track. The p... | 05/01/1984 |
| 4127364 | Heat pump unit A heat pump unit comprising a compressor and an expansion machine for respectively compressing and re-expanding a medium which circulates in a heating or cooling circuit. The power used for compressing this medium is at least partly recovered in the expan... | 11/28/1978 |
| 4086764 | Hydroturbine engine device A hydroturbine engine device having a plurality of notched discs mounted within a high pressure fluid chamber. A high pressure oil input is provided along the edges of said discs at one portion of the unit and an outlet for the spent oil is provided downs... | 05/02/1978 |
| 3991657 | Vaned hydraulic motor A vaned hydraulic motor which includes a rotor adapted to rotate in excess of 180° with respect to the stator, has, in an axial juxtaposition, a middle circumference annular chamber and two outer circumferential annular chambers flanking the middle annul... | 11/16/1976 |
| 3990405 | Rotary internal combustion engine An orbital rotary piston-type internal combustion engine in which a series of pistons are mounted for co-operation on a pair of rotors which are carried on a drive shaft and travel in an annular combustion chamber, with associated pre-combustion chambers ... | 11/09/1976 |
| 3986370 | Apparatus for connecting motors in tandem Apparatus for connecting motors in tandem and particularly in vertical alignment includes a coupling for connecting the lower end of the shaft of the upper motor to the upper end of the shaft of the lower motor. A tubular member surrounds the coupling wit... | 10/19/1976 |
| 3978665 | Oil hydraulic motor An oil hydraulic motor is provided with a casing in which a rotor is disposed in an eccentric position. An oil having a preselected pressure is sealed in the chambers defined between the rotor and the inner wall surfaces of the chambers and a high pressur... | 09/07/1976 |
| 3956904 | Compressor-expander for refrigeration having dual rotor assembly A compressor-expander assembly for use in a refrigeration system which includes a housing defining compression and expansion chambers of generally cylindrical section arranged side by side. Compressor and expander rotors of cylindrical shape are journaled... | 05/18/1976 |
