EP 1789678 A1 20070530 - ORBITING VALVE FOR A RECIPROCATING PUMP
Title (en)
ORBITING VALVE FOR A RECIPROCATING PUMP
Title (de)
SCHWINGVENTIL FÜR HUBKOLBENPUMPE
Title (fr)
SOUPAPE A MOUVEMENT ORBITAL DESTINEE A UNE POMPE ALTERNATIVE
Publication
Application
Priority
- US 2005032856 W 20050915
- US 61001304 P 20040915
Abstract (en)
[origin: WO2006031935A1] For pumps, compressors, and air or hydraulic motors with multiple cylinders such as swashplate or nutating type pumps and compressors with axial pistons arranged about a central axis, a orbit valve is connected through an eccentric and bearing to the shaft and caused to orbit around an axis of the shaft by rotation of the shaft. Grooves in the orbit valve surface alternately connect a port in each cylinder with a fixed intake and an exhaust port in the valve plate ties for optimal performance without depending on pressure differential otherwise needed to open and close passive flapper or poppet-type valves. The orbiting motion provides direct acting valve action for intake and exhaust functions with much slower relative motion and far less friction than a rotating valve of similar size.
IPC 8 full level
F04B 1/12 (2006.01); F01B 13/04 (2006.01); F04B 7/00 (2006.01); F04B 17/00 (2006.01); F04B 39/10 (2006.01)
CPC (source: EP GB US)
F01B 3/0002 (2013.01 - GB); F01B 3/02 (2013.01 - GB); F01B 3/101 (2013.01 - GB); F01B 13/04 (2013.01 - EP US); F04B 27/1009 (2013.01 - EP GB US); F04B 39/10 (2013.01 - EP GB US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006031935 A1 20060323; WO 2006031935 B1 20060511; AU 2005284802 A1 20060323; CA 2580022 A1 20060323; CN 101018949 A 20070815; EP 1789678 A1 20070530; GB 0704521 D0 20070418; GB 2432197 A 20070516; JP 2008513649 A 20080501; US 2008075616 A1 20080327
DOCDB simple family (application)
US 2005032856 W 20050915; AU 2005284802 A 20050915; CA 2580022 A 20050915; CN 200580030886 A 20050915; EP 05796351 A 20050915; GB 0704521 A 20070309; JP 2007531471 A 20050915; US 57480705 A 20050915