Patents for F04C 2 - Rotary-piston machines or pumps (14,296)
01/1984
01/17/1984US4426199 Rotary fluid actuated machine
01/10/1984US4425088 Vane-stator bottom assembly for rotary hydraulic devices
12/1983
12/28/1983EP0097138A2 A hydraulic pump or hydraulic motor
12/27/1983US4422834 Power steering pump
12/20/1983US4421462 Variable displacement pump of vane type
12/13/1983US4420292 Bi-directional internal/external gear pump with advanced porting
12/13/1983US4420290 Power steering pump
11/1983
11/30/1983EP0095194A1 Rotary vane pump
11/29/1983CA1157848A1 Hydraulic drilling motor for well drilling
11/22/1983US4416598 Rotary vane pump with pressure biased flow directing end plate
11/16/1983EP0094379A1 Rotary pump for delivering gases and liquids, particulary for use as a driving unit for blood diaphragm pumps
11/15/1983US4415316 Down hole motor
11/08/1983US4413960 Positionable control device for a variable delivery pump
11/02/1983EP0022782B1 Gear machine
11/01/1983US4412789 Oil pump unit
11/01/1983CA1156088A1 Power steering pump
10/1983
10/25/1983US4411607 Internal gear machine with rotary pressure balanced valve disc
10/25/1983US4411606 Gerotor gear set device with integral rotor and commutator
10/25/1983US4411604 Scroll-type fluid displacement apparatus with cup shaped casing
10/12/1983EP0091347A1 Multiple-gear pump
10/11/1983US4408964 Vane pump
10/11/1983US4408963 Power steering pump
10/04/1983US4407639 Compressor
09/1983
09/27/1983US4406599 Variable displacement vane pump with vanes contacting relatively rotatable rings
09/27/1983CA1154306A1 Rotary pumps and motor
09/21/1983EP0088811A1 Sliding vane pump, particularly for power steering
09/06/1983US4402654 Fluid-operated gear machine
09/06/1983US4402653 Rotary compressor
09/06/1983CA1153247A1 Rotary fluid pressure device
08/1983
08/31/1983EP0087239A1 Improved crowned spines and definition of root radius therefor
08/30/1983US4401416 Self-contained rotary fuel pump
08/30/1983CA1152808A1 Fuel pump assembly
08/23/1983US4400147 Flushable rotary gear pump
08/23/1983US4400146 Fluid-operated gear machine
08/23/1983US4400139 Oil pump
08/16/1983US4398874 Gear ring pump
08/09/1983US4397621 Vane of a vane pump for hydraulic operating medium
08/09/1983US4397619 Hydraulic drilling motor with rotary internally and externally threaded members
08/02/1983CA1151005A1 Positive displacement compact slipper pump
07/1983
07/27/1983EP0084291A1 Dosing machine for the filling with deformable foodstuff of permanent-shaped cavities, and its use
07/26/1983US4395207 Gear pump or motor with bearing passage for shaft lubrication
07/26/1983US4395130 Interconnected pumping mechanism
07/20/1983EP0083955A1 A pumping system suitable for conveying a high consistency material
07/20/1983EP0083829A1 Adjustable pressure extrusion pump
07/13/1983EP0083491A1 Gerotor pumps
07/13/1983EP0031324B1 Positive pressure pump or motor
07/13/1983EP0020354B1 Manifolded multiple hydraulic pump structure
07/12/1983US4392799 Internal gear pump motor
07/12/1983US4392798 Gear pump or motor with low pressure bearing lubrication
07/12/1983US4392779 Marine drive water pump
06/1983
06/28/1983US4390329 Rotary fluid pressure device and valve-seating mechanism therefor
06/28/1983CA1148791A1 Combined lift and metering pump
06/22/1983EP0081902A1 A gear pump or motor
06/15/1983EP0081293A1 A tooth top sealing mechanism for a gear pump or motor
06/14/1983CA1148023A1 Hydraulic gear pump or motor with floating wear plates, balance assembly, and unitary load bearing and alignment means
06/07/1983US4386893 Gear pump or motor with a shaftless gear
06/07/1983US4386892 Hydrostatic meshing gear machine with arcuate tooth flanks
06/07/1983US4386891 Rotary hydraulic vane pump with undervane passages for priming
05/1983
05/31/1983US4385874 Rotary pump apparatus with plural abutting pumping segments
05/25/1983EP0022781B1 Gear machine
05/24/1983CA1146808A1 Reversible gear pump or motor and diverter plates therefor
05/18/1983EP0079156A1 Oil pump
05/10/1983US4382755 Driveshaft arrangement for trochoidal rotary device
04/1983
04/19/1983US4380420 Internal gear machine with rotary valve disk
04/12/1983CA1144423A1 Fluid pump
04/06/1983EP0076033A1 Variable output internal gear pump
03/1983
03/22/1983CA1143216A1 Rotary fluid pump
03/15/1983CA1142794A1 Rotary pumps and motors
03/08/1983CA1142566A1 Lubrication and cooling system for a high speed ultracentrifuge drive assembly
02/1983
02/23/1983EP0072636A2 N/N +1 lobed rotary fluid pumps
02/15/1983US4373878 Synchronized hydraulic rotary converter and distributor device
02/15/1983US4373871 Compact power steering pump
02/15/1983US4373866 Process to control the delivery of a single screw compressor
02/01/1983US4371324 Helical gear machine with improved high pressure port
02/01/1983CA1140392A1 Variable displacement pump
02/01/1983CA1140355A1 Planetary mechanism
01/1983
01/26/1983EP0070617A2 Scroll type fluid displacement apparatus
01/25/1983US4370111 Rotary pump or motor with drive rollers and free-floating rollers
01/25/1983US4370110 High pressure gear pump or motor with axial retaining means in a housing cavity
01/18/1983CA1139812A1 Thrust bearing/coupling component for scroll-type orbiting machinery and scroll- type machinery incorporating the same
01/12/1983EP0069604A1 Hydraulic pumps or motors with helicoidal gears (screw turbines)
01/11/1983US4368013 Gear motor with fluid pressure groove and recess to facilitate starting
01/11/1983US4368012 Fluid pressure assembly having a valve disk member with identical flat sides
01/05/1983EP0068355A1 Rotor and method of making same
01/05/1983EP0068354A1 A fluid pump or motor of the sliding vane type
01/04/1983US4366779 Wind driven heating system
12/1982
12/28/1982CA1138256A1 Arrangement for mounting a gear on a shaft
12/15/1982EP0067085A1 Process and apparatus for feeding combustible material to a combustion room
12/14/1982CA1137536A1 Ink drop compensation based on print-data blocks
12/08/1982EP0066457A2 Driving support mechanism for an orbiting scroll of a scroll type fluid displacement apparatus
12/07/1982US4362481 Rotary vane machine with rings radially constraining the vanes
12/07/1982US4362479 Rotary fluid pressure device and lubrication circuit therefor
12/01/1982EP0065654A2 Pomp for supplying fluid to a system
12/01/1982EP0065653A2 Pomp for supplying fluid to a system
11/1982
11/30/1982US4361419 Gerotor liquid pump mounted on a support bushing
11/23/1982US4359866 Rotatable controller system
11/10/1982EP0064239A1 Gear pump or motor
11/09/1982US4358258 High pressure gear pump or motor with axial retaining means and radial balancing means
11/09/1982CA1135120A1 Rotary fluid pump
11/02/1982US4357133 Rotary gerotor hydraulic device with fluid control passageways through the rotor