| Patents for F04B 35 - Piston pumpsspecially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for (9,373) |
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| 06/16/2004 | EP1427939A1 A compact vacuum pump |
| 06/16/2004 | CN1504643A Lubricating device of reciprocating compressor |
| 06/16/2004 | CN1154225C Oscillating magnetic resistance motor and reciprocating compressor with the same motor |
| 06/16/2004 | CN1153906C Turbo-compressor device |
| 06/15/2004 | US6749406 Ultrasonic pump with non-planar transducer for generating focused longitudinal waves and pumping methods |
| 06/10/2004 | WO2003102395A3 Power pistons |
| 06/10/2004 | US20040108825 Apparatus and method for controlling driving of linear motor |
| 06/09/2004 | DE10254044A1 Coolant compression device for freezers has rotor rotating on rotor shaft which is fixed to motor housing |
| 06/09/2004 | CN1503878A Linear compressor |
| 06/08/2004 | US6746217 Reciprocating compressor |
| 06/08/2004 | US6746211 Operation control method utilizing resonance frequency of reciprocating compressor |
| 06/03/2004 | WO2004046550A1 A control system for the movement of a piston |
| 06/03/2004 | WO2004032994A3 Fluid delivery device, system and method |
| 06/03/2004 | US20040105766 Air compressor having stable configuration |
| 06/03/2004 | US20040104076 Lubricating device of reciprocating compressor |
| 06/03/2004 | DE10350251A1 Axialkolbenpumpe Axial piston pump |
| 06/03/2004 | DE10253014A1 Method of operating refrigerant coolant compressor involves using noise compensation signal with predefined phase offset to reduce operating noise |
| 06/02/2004 | EP0977948A4 Dry vacuum pump |
| 06/02/2004 | CN2619069Y Non-cylindral piston for piston compressor |
| 06/02/2004 | CN2619068Y Full sealed refrigeration compressor using plane thrust ball bearing |
| 06/01/2004 | US6742998 Linear compressor with vibration canceling spring arrangement |
| 06/01/2004 | US6742995 Air compressor assembly |
| 06/01/2004 | US6742350 Hybrid compressor device |
| 05/27/2004 | WO2004044479A2 Fluid provider assembly and portable fluid provider system including same |
| 05/27/2004 | WO2004044423A1 Compressor head |
| 05/27/2004 | WO2004044421A2 Fluid pumps with increased pumping efficiency |
| 05/27/2004 | US20040101413 Control device of linear compressor drive system |
| 05/27/2004 | CA2504945A1 Fluid provider assembly and portable fluid provider system including same |
| 05/26/2004 | CN2617955Y Oilless lubricating pump gaseous ring set for piston air compressor |
| 05/26/2004 | CN1500306A 线性电马达 Linear electric motor |
| 05/26/2004 | CN1500183A Oil pumping system for reciprocating hermetic compressor |
| 05/26/2004 | CN1499076A 线性压缩机 Linear Compressor |
| 05/25/2004 | US6739237 Connecting rod apparatus of hermetic compressor |
| 05/20/2004 | US20040096345 Fluid pumps with increased pumping efficiency |
| 05/20/2004 | US20040096344 Simplified piston slidable in a cylinder |
| 05/20/2004 | US20040096341 Vibration and displacement proof air compressor |
| 05/20/2004 | US20040093873 Stirling refrigerating machine |
| 05/20/2004 | US20040093870 Vehicle control system |
| 05/19/2004 | EP1420167A2 Device for circulating sealing gas for mechanical dry seals of a centrifugal compressor |
| 05/19/2004 | EP1420164A2 Simplified piston slidable in a cylinder |
| 05/19/2004 | DE10232173B3 Electric pump for coffee bean storing device, has cap that includes OFF position when spring is not connected with electrode, and ON position when spring is connected with electrode |
| 05/19/2004 | CA2412097A1 Vibration and displacement-proof air compressor |
| 05/18/2004 | US6737773 Wiring structure of motor in hybrid compressor |
| 05/18/2004 | US6736614 Rotary piston drive mechanism |
| 05/18/2004 | US6735962 Composite auxiliary machine for vehicle and control unit thereof |
| 05/13/2004 | WO2004039610A1 Inflating system integrated on the vehicle wheel |
| 05/13/2004 | DE10329963A1 Operation control apparatus for reciprocating compressor, has controller which varies voltage applied to motor and operating frequency of compressor based on comparison of second stroke value and stroke reference value |
| 05/13/2004 | DE10302481A1 Motor driving apparatus for use in reciprocating compressor, has capacitor to apply power voltage supplied from power supply unit to motor when positive temperature coefficient device cuts off power voltage |
| 05/13/2004 | DE10249215A1 Linearverdichtereinheit Linear compressor unit |
| 05/12/2004 | CN2615379Y Packing cup air compressor |
| 05/12/2004 | CN2615378Y Linkage unloading single-way valve |
| 05/12/2004 | CN1496445A Pistion lubrication system for reciprocating compressor with linear motor |
| 05/12/2004 | CN1149335C Valve-fixing structure of reciprocating compressor |
| 05/11/2004 | US6733253 Hydraulic air compressor having an automatic water valve regulation mechanism |
| 05/11/2004 | US6733251 Compressor with built-in motor and mobile structure using the same |
| 05/11/2004 | US6733248 Fluid pumping apparatus |
| 05/11/2004 | US6733245 Piston support structure of reciprocating compressor |
| 05/06/2004 | WO2004038221A1 Linear compressor unit |
| 05/06/2004 | US20040086392 Power transmission and compressor |
| 05/06/2004 | US20040084984 Synchronous induction motor and manufacturing method and drive unit for the same, and hermetic electric compressor |
| 05/06/2004 | US20040083743 Compressor and refrigerant system device using the same |
| 05/06/2004 | EP1414688A1 Oil-less/oil free air brake compressors |
| 05/05/2004 | CN1493786A Closed compressor and refrigerator using the same |
| 05/04/2004 | US6729861 Reciprocating compressor with support springs placed between support members for radial compactness |
| 05/04/2004 | US6729225 Connecting-rod apparatus of hermetic compressor |
| 04/29/2004 | WO2004036723A1 Linear motor and liner compressor using the same |
| 04/29/2004 | US20040081568 Axial piston pump |
| 04/29/2004 | US20040081561 Composite type compressor |
| 04/29/2004 | US20040080287 Driving apparatus of motor |
| 04/29/2004 | US20040079100 Field replaceable packaged refrigeration module with capillary pumped loop for cooling electronic components |
| 04/29/2004 | US20040079098 Hybrid compressor system for refrigeration cycle system |
| 04/29/2004 | DE10348190A1 Hybridkompressorsystem für ein Kühlkreissystem Hybrid compressor system for a refrigerant cycle system |
| 04/28/2004 | EP1413751A1 Power transmission and compressor |
| 04/28/2004 | EP1020013B1 Linear motor compressor |
| 04/28/2004 | CN2613618Y Vertical piston type air pumping device |
| 04/28/2004 | CN1492969A Anti-wear structure of reciprocating compressor |
| 04/28/2004 | CN1492296A Motor driver |
| 04/28/2004 | CN1492149A Control driving device and method for reciprocating compressor using linear motor refrigerator |
| 04/27/2004 | US6727607 Oscillating reluctance motor and reciprocating gas compressor using the same |
| 04/27/2004 | US6726457 Compressor with supercharged inlet |
| 04/22/2004 | WO2004034563A1 Motor control method and device thereof |
| 04/22/2004 | WO2004033909A1 Overload protective apparatus of a compressor and a method thereof |
| 04/22/2004 | WO2004033904A2 Wheeled portable air compressor |
| 04/22/2004 | WO2004032994A2 Fluid delivery device, system and method |
| 04/22/2004 | US20040074700 Piston lubrication system for a receiprocating compressor with a linear motor |
| 04/22/2004 | DE10342100A1 Axial-piston fluid pump has counterweight installed to drive shaft at an oblique angle relative to shaft axis and which supports piston assembly through bearing, such that |
| 04/22/2004 | DE10312081A1 Reciprocating compressor operation controlling method, involves controlling stroke of compressor by varying voltage applied to motor of compressor based on determined stroke reference value and one stroke estimation value |
| 04/22/2004 | DE10302037A1 Vorrichtung und Verfahren zur Betriebssteuerung eines Verdichters Apparatus and method for controlling operation of a compressor |
| 04/22/2004 | DE10196870T5 Hubkolbenverdichter Reciprocating Compressors |
| 04/22/2004 | DE10196533T5 Vorrichtung und Verfahren zum Steuern eines Kompressors mit Hin- und Herbewegung Apparatus and method for controlling a compressor with reciprocating motion |
| 04/21/2004 | EP1409051A2 Inhalator and pertaining atomizer |
| 04/21/2004 | CN2612819Y Shockproof type auxiliary air pump |
| 04/21/2004 | CN1491322A Valve coupling structure of reciprocating compressor and coupling method thereof |
| 04/21/2004 | CN1490523A Operating apparatus and method for controlling piston booster |
| 04/15/2004 | WO2004018873A3 Two stage double acting hydraulic/gas compressor |
| 04/15/2004 | US20040071568 Reliability-improving structure of reciprocating compressor |
| 04/15/2004 | US20040071567 Integrated air compressor |
| 04/15/2004 | US20040071566 Wave and tide actuated energy pump |
| 04/15/2004 | US20040071561 Support structure for a portable air compressor |
| 04/15/2004 | US20040071556 Apparatus and method for controlling operation of reciprocating compressor |