| Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462) |
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| 05/08/2013 | CN103089649A Rotor of Roots type vapor compressor |
| 05/08/2013 | CN103089647A Multistage dry vacuum pump |
| 05/08/2013 | CN103089645A Improved Roots vacuum set |
| 05/08/2013 | CN103089644A Improved jet vacuum pump set |
| 05/08/2013 | CN103089643A Improved vortex vacuum pump |
| 05/08/2013 | CN103089642A Improved Roots vacuum pump |
| 05/08/2013 | CN103089638A Improved slide-valve Roots vacuum unit |
| 05/08/2013 | CN103089624A Roots vacuum pump |
| 05/08/2013 | CN103089623A Improved air-cooled type Roots vacuum pump |
| 05/08/2013 | CN103089622A Scroll compressor |
| 05/08/2013 | CN103089621A Scroll compressor |
| 05/08/2013 | CN103089620A Scroll compressor |
| 05/08/2013 | CN103089619A Scroll compressor |
| 05/08/2013 | CN103089618A Scroll compressor |
| 05/08/2013 | CN103089617A Scroll compressor |
| 05/08/2013 | CN103085957A Horizontal double-arc gear pump for high-speed vessel |
| 05/08/2013 | CN102182686B Single screw compressor with double elliptic generating surfaces and secondary enveloping line |
| 05/08/2013 | CN102116291B Check valve device of vortex compressor |
| 05/08/2013 | CN102003392B Dual-sliding vane rotary compressor, control method and application thereof |
| 05/08/2013 | CN101910637B Scroll machine |
| 05/08/2013 | CN101855455B Compressor having shell with alignment features |
| 05/08/2013 | CN101548107B Powder metal scroll hub joint |
| 05/08/2013 | CN101294564B Nodular graphite cast iron cyclone compressor |
| 05/02/2013 | WO2013061957A1 Multi-cylinder rotary compressor and method for joining division plate between compression chambers thereof |
| 05/02/2013 | WO2013061879A1 Multi-cylinder rotary compressor |
| 05/02/2013 | WO2013061606A1 Rotary compressor and refrigeration cycle device |
| 05/02/2013 | WO2011128349A3 Compressor flange for screw-type compressor |
| 05/02/2013 | US20130108496 Scroll compressor |
| 05/01/2013 | EP2587064A1 Vane vacuum pump |
| 05/01/2013 | EP2587059A1 Portable, rotary vane vacuum pump with removable oil reservoir cartridge |
| 05/01/2013 | CN202914316U Low-noise Roots vacuum pump |
| 05/01/2013 | CN202914313U Double-rotor claw-type strong-flow pump |
| 05/01/2013 | CN103080555A Oil-cooled gas compressor |
| 05/01/2013 | CN103080554A 叶片式压缩机 Vane compressor |
| 05/01/2013 | CN103080553A 叶片式压缩机 Vane compressor |
| 05/01/2013 | CN103075348A Refrigerating apparatus |
| 05/01/2013 | CN103075343A Slide vane air motor compressor |
| 05/01/2013 | CN103075342A 涡旋式压缩机 Scroll compressor |
| 05/01/2013 | CN103075341A Compressor |
| 05/01/2013 | CN102116293B Helical compressor for refrigerating medium |
| 05/01/2013 | CN101725531B 回转式压缩机 Rotary Compressor |
| 05/01/2013 | CN101589234B 旋转式压缩机 Rotary compressor |
| 05/01/2013 | CN101469704B 涡旋式流体机械 The scroll-type fluid machine |
| 04/25/2013 | WO2013057946A1 Rotary compressor having two cylinders |
| 04/25/2013 | WO2013057770A1 Vane compressor |
| 04/25/2013 | WO2013057761A1 Screw pump and rotor for screw pump |
| 04/25/2013 | US20130101454 Rotary compressor |
| 04/25/2013 | DE102012218373A1 Vacuum vane pump comprises a flange which is positioned correctly with respect to a predetermined clearance, which depends essentially on the machining tolerances of components of vane pump and electric motor |
| 04/24/2013 | EP2584199A2 Motor-driven compressor |
| 04/24/2013 | CN202900674U 涡旋压缩机 Scroll Compressor |
| 04/24/2013 | CN202900673U 涡旋压缩机 Scroll Compressor |
| 04/24/2013 | CN202900672U 涡旋压缩机 Scroll Compressor |
| 04/24/2013 | CN202900671U Oil return guide element of compressor and scroll compressor including oil return guide element |
| 04/24/2013 | CN202900669U 涡旋压缩机 Scroll Compressor |
| 04/24/2013 | CN202900668U Novel double screw compressor rotor |
| 04/24/2013 | CN202900664U 罗茨滑阀真空机组 Roots slide valve vacuum unit |
| 04/24/2013 | CN202900662U Integrated screw air compressor |
| 04/24/2013 | CN202900659U Structure of rotary vane compressor capable of assisting blades to extend |
| 04/24/2013 | CN202900658U Air-condition compressor for automobile with small output volume |
| 04/24/2013 | CN202900657U Screw compressor and oil way circulating system as well as air conditioning unit |
| 04/24/2013 | CN202900656U 螺杆真空泵 Screw vacuum pump |
| 04/24/2013 | CN202900655U Low pressure oil injection type screw compressor |
| 04/24/2013 | CN202900654U Screw compressor |
| 04/24/2013 | CN202900653U Circulating water-cooling type Roots blower |
| 04/24/2013 | CN202900652U 涡旋压缩机 Scroll Compressor |
| 04/24/2013 | CN202900651U Semi-closed scroll compressor |
| 04/24/2013 | CN103069170A Positive displacement compressor |
| 04/24/2013 | CN103069166A 制冷剂压缩机 Refrigerant compressor |
| 04/24/2013 | CN103062061A Method for improving reliability of main engine of oil-free screw compressor, and axial bearing locking structure |
| 04/24/2013 | CN103062060A Processing method and device for screw compressor rotor profile |
| 04/24/2013 | CN103062057A Screw-type vacuum pump |
| 04/24/2013 | CN103062056A Screw rod type dry vacuum pump with combined screw rod rotor |
| 04/24/2013 | CN103062055A Low-medium-pressure energy-saving single screw compressor |
| 04/24/2013 | CN103062053A Different-speed rotary vane compressor |
| 04/24/2013 | CN103062052A Refrigeration compressor |
| 04/23/2013 | US8425211 Positive displacement machine according to the spiral principle |
| 04/23/2013 | US8425206 Pump insert |
| 04/18/2013 | WO2013055033A1 Air compressor |
| 04/18/2013 | WO2012174374A3 Compressor dehydration via sorbent technology |
| 04/18/2013 | WO2012045618A3 Pump housing and pump |
| 04/18/2013 | WO2012045554A3 Vane cell pump |
| 04/18/2013 | US20130094987 Motor-driven compressor |
| 04/18/2013 | US20130091892 MANUAL Vi ADJUSTMENT MECHANISM FOR SCREW COMPRESSORS |
| 04/17/2013 | EP2581605A2 Scroll compressor with bypass hole |
| 04/17/2013 | EP2581604A2 Scroll compressor |
| 04/17/2013 | EP2581603A1 Scroll compressor |
| 04/17/2013 | EP2581552A1 Spiraster-type fluid motor or engine and compressor or pump |
| 04/17/2013 | CN202883379U Rotor shaft assembly of screw compressor |
| 04/17/2013 | CN202883378U Scroll type air compressor |
| 04/17/2013 | CN103052803A Scroll-type fluid machine |
| 04/17/2013 | CN103047158A Fan device driving gas to circulate in high-temperature high-pressure sealed pipeline |
| 04/17/2013 | CN103047147A Oil circuit structure of oil-injection scroll compressor |
| 04/17/2013 | CN103047142A Screw vacuum pump adopting dry gas seal |
| 04/17/2013 | CN103047141A Mechanical and electrical double-driven scroll compressor with single acting disc |
| 04/17/2013 | CN103047140A Sliding vane pump and compressor with similar structure |
| 04/17/2013 | CN103047139A Rotary-vane refrigeration compressor |
| 04/17/2013 | CN103047138A Motor-driven compressor |
| 04/17/2013 | CN103047137A Scroll compressor |
| 04/17/2013 | CN103047136A Scroll compressor with bypass hole |
| 04/17/2013 | CN103047135A Scroll wrap profile of liquid-injected scroll compressor |