| Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462) |
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| 02/07/2002 | DE10136289A1 Gas-injection Roots blower is silenced by gas manifolds which are volumetrically-tuned to damp fundamental acoustic frequency generated by rotors |
| 02/07/2002 | DE10037966C1 Rotary piston pump, for gases, has a number of identical pistons rotating against each other in the housing to force the gas to a perforated contour plate at the outlet, which has a closure disk to block/release the outflow |
| 02/06/2002 | EP1177383A1 Small-sized compressor |
| 02/06/2002 | CN1334904A Twin delivery screws provided for installation in positive-displacement machines, especially pumps |
| 02/06/2002 | CN1334405A Compressor |
| 01/31/2002 | WO2002008609A1 Twin screw rotors and displacement machines containing the same |
| 01/31/2002 | US20020012596 Scroll compressor with axially floating non-orbiting scroll and no separator plate |
| 01/31/2002 | US20020012595 Compressor |
| 01/31/2002 | DE10033154A1 Compact screw air compressor system has a separate pressure reservoir attached via a connecting flange and with an oil separator inside the reservoir |
| 01/30/2002 | EP1176323A1 Bearing, electromagnetic clutch and gas compressor |
| 01/30/2002 | CN1333450A Freezer |
| 01/30/2002 | CN1333433A Turbine compressor |
| 01/30/2002 | CN1078680C Compressor with hinged arc blades and rolling rotor |
| 01/30/2002 | CN1078679C 旋转式压缩机 Rotary compressor |
| 01/29/2002 | US6341951 Combination double screw rotor assembly |
| 01/29/2002 | US6341945 Scroll compressor with reduced capacity at high operating temperatures |
| 01/24/2002 | US20020009379 Anti-rotation mechanism for movable scroll in scroll compressor |
| 01/24/2002 | US20020009248 Compressor bearings |
| 01/23/2002 | EP1174621A1 Screw compressor |
| 01/23/2002 | CN1332322A Helical-lobe compressor |
| 01/23/2002 | CN1078315C Displacement machine with screw rotor pair as function unit |
| 01/23/2002 | CN1078314C Rotary compressor with reduced lubrication sensitivity |
| 01/23/2002 | CN1078313C Rotary-piston retator compressor |
| 01/23/2002 | CN1078312C Scroll-type compressor |
| 01/22/2002 | USRE37520 Gray cast iron system for scroll machines |
| 01/17/2002 | WO2002004814A2 Rotary positive displacement machine |
| 01/17/2002 | WO2002004787A2 Improvements in rotary positive displacement machines |
| 01/17/2002 | US20020006344 Multi-cylinder rotary compressor |
| 01/17/2002 | US20020006343 Scroll compressor with integral outer housing and a fixed scroll member |
| 01/17/2002 | US20020006342 Discharge muffler of a hermetic rotary compressor |
| 01/17/2002 | DE19649163C2 Rotationskolbenverdichter der Trochoidenbauart Rotary piston compressor of the trochoidal |
| 01/17/2002 | DE10031143A1 Bearings for spiral rotary compressor with cooling air ducted over the bearings for long life operation |
| 01/17/2002 | DE10031142A1 Method for ensuring clean input air into spiral compressor has a dedicated input duct on the back of the rotor and with a dry seal between the outer ends of the two spirals |
| 01/17/2002 | DE10031141A1 Method for ensuring clean input air into spiral compressor has an air duct on the rear of the rotor for a separate feed into the compressor |
| 01/17/2002 | DE10031140A1 Rotating seal for spiral compressor has a non contact labyrinth seal between the output stub and the pump rotor |
| 01/16/2002 | EP1172563A2 Screw compressor for refrigerating apparatus |
| 01/16/2002 | EP1172562A2 Scroll compressor |
| 01/16/2002 | EP1171690A1 Vacuum pump oil distribution system with integral oil pump |
| 01/16/2002 | EP0859913B1 Radial compliance mechanism for co-rotating scroll apparatus |
| 01/16/2002 | CN2471973Y Low noise sliding sheet blower |
| 01/16/2002 | CN2471972Y Anti-block sliding sheet blower |
| 01/16/2002 | CN1077961C 旋转式压缩机 Rotary compressor |
| 01/16/2002 | CN1077960C Scroll compressor capable of effectively cooling motor |
| 01/15/2002 | US6338912 Fuel cell system having common scroll type compressor and regenerator |
| 01/15/2002 | US6338617 Helical-blade fluid machine |
| 01/15/2002 | US6338616 Screw rotor compressor having a movable wall portion |
| 01/15/2002 | CA2046548C Scroll machine with floating seal |
| 01/11/2002 | CA2353045A1 Scroll compressor |
| 01/10/2002 | WO2002002949A1 Screw machine |
| 01/10/2002 | WO2002002920A1 System and method for gaseous fuel control for a turbogenerator/motor |
| 01/10/2002 | US20020004016 Gas supplying device for vacuum pump |
| 01/10/2002 | US20020003012 Forged scroll parts and production process thereof |
| 01/10/2002 | US20020002840 Motor-driven compressor |
| 01/09/2002 | EP1170558A2 A freezing apparatus |
| 01/09/2002 | CN2470580Y Teeht-shape screw stem |
| 01/09/2002 | CN2470579Y Novel tooth-shape screw stem |
| 01/09/2002 | CN2470578Y Tooth-shape screw stem |
| 01/09/2002 | CN1330226A Compressor station with water-jet compressor set |
| 01/09/2002 | CN1330225A Mutually matched basic material of blade and lubricant for compressor |
| 01/09/2002 | CN1330224A Eccentric air compressor with dual elements sealed synchronously |
| 01/09/2002 | CN1077658C Vortex fluid machinery |
| 01/08/2002 | US6336799 Multi-cylinder rotary compressor |
| 01/08/2002 | US6336798 Rotation preventing mechanism for scroll-type fluid displacement apparatus |
| 01/08/2002 | US6336797 Oiless rotary scroll air compressor air inlet valve |
| 01/08/2002 | US6336794 Rotary compressor assembly with improved vibration suppression |
| 01/08/2002 | US6336336 Rotary piston compressor and refrigerating equipment |
| 01/08/2002 | US6336317 Quasi-isothermal Brayton cycle engine |
| 01/03/2002 | US20020001532 Radial compliance scroll compressor |
| 01/03/2002 | US20020001531 Screw compressor |
| 01/03/2002 | US20020001523 Air compressor and method of operating the same |
| 01/03/2002 | DE10029342A1 Rotation compressor has outer rotor with central polygonal chamber with essentially straight inner sides for accommodating inner rotor via individual circular section shaped struts |
| 01/02/2002 | EP1167770A2 Compressor installation with water-injected compressor element |
| 01/02/2002 | CN2469212Y Vortex type compressor |
| 01/02/2002 | CN1329217A Vortex compressor |
| 01/02/2002 | CN1329214A Closed compressor |
| 01/02/2002 | CN1077244C Movable turbine blank of turbine compressor and its making method |
| 01/02/2002 | CN1077243C Axial sealing apparatus for scroll type compressor |
| 01/02/2002 | CN1077242C 流体机械 Fluid Machinery |
| 01/02/2002 | CN1077241C 压缩机 Compressor |
| 01/02/2002 | CN1077238C Mfg. method of enclosed shell of sealing compressor as well as sealing compressor |
| 01/01/2002 | US6334764 Scroll compressor for introducing high-pressure fluid to thrust-face side so as to decrease thrust load imposed on revolving scroll |
| 01/01/2002 | US6334763 Capacity-controlled scroll-type compressor having internally-bypassing system |
| 12/27/2001 | WO2001098662A1 Scroll compressor |
| 12/27/2001 | WO2001098661A1 Scrawl compressor |
| 12/27/2001 | US20010055536 Scroll compressor with deflector plate |
| 12/27/2001 | US20010054294 Screw compressor for refrigerating apparatus |
| 12/26/2001 | CN1328215A Closed electric compressor and assembling method thereof |
| 12/26/2001 | CN1076796C Vortex compressor |
| 12/25/2001 | US6332764 Displacement type fluid machine having an orbiting displacer forming a plurality of spaces and method for manufacturing same |
| 12/25/2001 | US6332763 Displacement type fluid machine having an orbiting displacer forming a plurality of spaces |
| 12/25/2001 | US6332762 Scroll-type fluid displacement apparatus |
| 12/20/2001 | WO2001096743A1 Gear rotor compressor |
| 12/19/2001 | EP1164249A1 Spherical positive-displacement rotary machine |
| 12/19/2001 | EP1163452A1 Rotary helical screw-type compressor |
| 12/19/2001 | EP1163451A1 Rotary helical screw-type compressor |
| 12/19/2001 | EP1163450A1 Pump for generating pressure or negative pressure |
| 12/19/2001 | CN1327127A Sealed compressor |
| 12/19/2001 | CN1327126A Rotary compressor and its operation control method |
| 12/18/2001 | US6331103 Fluid machine having a pair of rotors and a silencer |
| 12/18/2001 | US6331102 Scroll type fluid machinery |