Patents for F03C 2 - Rotary-piston engines (2,448)
03/2006
03/21/2006US7014436 Gear pump
03/21/2006US7014435 Scroll fluid machine
03/21/2006US7014434 Scroll fluid machine
03/16/2006WO2005100780A3 Variable capacity pump/motor
03/16/2006US20060057009 Scroll compressor having vacuum preventing structure
03/09/2006US20060051225 Scroll pump and method of assembling same
03/07/2006US7008199 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit
03/03/2006CA2481427A1 Reverse-rotating, post-rotating and bi-rotating engines (second part: concluding generalization)
03/02/2006US20060045784 Motor compressor lubrication
03/02/2006DE19847144B4 Hydraulische Innenzahnradmaschine A hydraulic internal gear machine
02/2006
02/23/2006US20060039816 Variable displacement vane pump with pressure balanced vane
02/23/2006US20060039815 Fluid displacement pump
02/23/2006US20060039814 Working unit of a rotary combustion engine
02/22/2006CN2760280Y Double-stator laminated plate distribution cycloidal hydraulic motor
02/22/2006CN2760279Y Low noise axial distribution cycloidal hydraulic motor
02/21/2006US7001162 Compressor assembly
02/21/2006US7001161 Scroll fluid machine
02/15/2006CN2758544Y Planetary pinwheel cycloidal hydraulic motor
02/15/2006CN1242170C Clearance of ring shaped gear wheel machine
02/14/2006US6997689 Offset bearing for extended fuel pump life
02/09/2006US20060029510 Motor-driven Roots compressor
02/09/2006US20060029509 Trochoid pump
02/09/2006US20060029508 Scroll fluid machine
02/09/2006US20060029507 Stator of a moineau-pump
02/08/2006CN2756882Y Hydraulic oil motor
02/08/2006CN2756858Y Low noise disc distribution flow cycloidal hydraulic motor
02/08/2006CN1240939C Hydraulic motor with capability of multi-rotating speed ratio
02/07/2006CA2411989C Optimized fiber reinforced liner material for positive displacement drilling motors
02/02/2006WO2006010471A1 Hydrostatic rotary cylinder engine
02/02/2006US20060024188 Gear pump
02/02/2006US20060024187 Hydraulic pump
02/01/2006CN2755287Y Energy-saving fluid engine
01/2006
01/31/2006US6991443 Oil injected screw compressor
01/31/2006US6991440 Two-stage screw compressor
01/26/2006WO2006009603A1 Scroll compressor with recess on crankcase or orbiting scroll
01/25/2006CN2753893Y Full-hydraulic steering gear capable of eliminating entrap phenomenon
01/12/2006US20060008375 Screw compressor
01/12/2006US20060008374 Vane-type rotary apparatus with split vanes
01/05/2006US20060002809 Rotary closed type compressor and refrigerating cycle apparatus
01/04/2006EP1612370A1 Gerotor mechanism for a screw hydraulic machine
12/2005
12/29/2005US20050287028 Scroll fluid machine
12/29/2005DE102004028830A1 Hydraulic pump has two intermeshing gear wheels each adjacent to a chamber
12/28/2005CN1233927C Rotary piston type fluid element
12/27/2005US6979185 Bi-rotational pump/hydraulic actuator
12/22/2005US20050281698 Low speed, high torque rotary abutment motor
12/22/2005US20050281697 Scroll compressor with recess on crankcase or orbiting scroll
12/20/2005CA2411535C Optimized liner thickness for positive displacement drilling motors
12/15/2005WO2005119066A2 Gear for use in a gear pump
12/15/2005US20050276714 Gear pump
12/08/2005US20050272592 Forming a metal oxide or its precursor through a chemical reaction in the mesopores of a colloid imprinted carbon (CIC) and optionally heating the CIC in an oxidizing atmosphere to remove it; e.g., forming spinels, hydroxyapatite, silica, alumina, aluminates and silicates
12/08/2005US20050271538 Gear for use in a gear pump
12/08/2005US20050271534 Scroll compressor and air-conditioning system for vehicle using the scroll compressor
12/08/2005US20050271504 Seal system
12/07/2005EP1602802A1 Seal system
11/2005
11/29/2005US6969243 Scroll compressor with recess on crankcase or orbiting scroll
11/24/2005US20050261390 Stable cationically crosslinkable/polymerizable dental composition with a high filler content
11/24/2005US20050260092 Turbostatic compressor, pump, turbine and hydraulic motor and method of its operation
11/24/2005US20050260091 Rotary device for use in an engine
11/17/2005US20050254984 Shared slot vane pump
11/17/2005US20050254983 Rotary pistons
11/17/2005DE102004020357A1 Verfahren und Hydromaschine zum Steuern einer Verdrängung Procedures and hydraulic machine for controlling a displacement
11/17/2005DE102004008313A1 Kreiskolbenbrennkraftmaschine mit einer verbesserten Innendichtung Rotary piston internal combustion engine with an improved inner seal
11/17/2005DE102004008309A1 Kreiskolbenbrennkraftmaschine mit einer Einrichtung zur Förderung des Schmieröls Rotary piston internal combustion engine with a device for conveying the lubricating oil
11/10/2005US20050249622 Device for controlling parasitic losses in a fluid pump
11/10/2005US20050249591 Rotary ram-out vacuum pump
11/09/2005EP1144868B1 Hydraulic machine comprising dual gerotors
11/03/2005WO2005103488A2 Device for controlling parasitic losses in a fluid pump
11/03/2005DE102005014130A1 Schaltventilkonstruktion einer Fluidmaschine Switching valve structure of a fluid machine
11/03/2005DE102005013510A1 Fluidmaschine Fluid machine
11/02/2005CN1690363A Method and hydraulic machine for controlling volume changes
10/2005
10/27/2005WO2005100780A2 Variable capacity pump/motor
10/27/2005US20050238521 Method and hydromachine for controlling a displacement
10/20/2005WO2005098232A2 Method for the preparation of metal oxides in nanometric particle form
10/20/2005CA2561620A1 Gapless screw rotor device
10/19/2005CN1683793A 涡旋式压缩机 Scroll compressor
10/13/2005WO2005094547A2 Rotary vane pump
10/13/2005US20050226757 Variable capacity pump/motor
10/13/2005US20050226755 Scroll compressor
10/11/2005US6953330 Scroll vacuum pump
10/06/2005WO2005093258A2 Hydraulic motor or pump of annular gear construction
10/06/2005US20050220655 Rolling piston and gas leakage preventing apparatus for rotary compressor having the same
10/06/2005US20050220654 Apparatus for preventing overheating of scroll compressor
10/06/2005US20050220651 Scroll type hydraulic machine
10/06/2005US20050220646 Fluid machine
10/06/2005US20050220642 Switch valve structure of fluid machine
10/05/2005CN1676937A Apparatus for preventing overheating of scroll compressor
10/05/2005CN1676934A Scroll type hydraulic machine
10/05/2005CN1676883A Switch valve structure of fluid machine
10/05/2005CN1676882A Fluid machine
09/2005
09/29/2005US20050214153 Rotary vane pump
09/29/2005US20050214152 Rotary vane pump
09/29/2005US20050214148 Fluid machine
09/29/2005DE19549788B4 Hydraulic motor for excavator, etc. - has connector part with journal, screwed into shaft end
09/29/2005DE10360172B4 Hydraulischer Motor Hydraulic motor
09/28/2005CN2729318Y Hole hydraulic motor
09/22/2005US20050207925 Variable capacity rotary compressor
09/22/2005DE202005005348U1 System for converting hydraulic pressure into rotational torque has a spiral groove duct in a stator and with a floating piston attached to a rotor
09/21/2005CN1670377A Variable capacity rotary compressor
09/21/2005CN1670368A Energy accumulating engine
09/15/2005US20050201884 Compact rotary compressor with carbon dioxide as working fluid
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