EP 2365220 A1 20110914 - Linear pump
Title (en)
Linear pump
Title (de)
Linearpumpe
Title (fr)
Pompe linéaire
Publication
Application
Priority
EP 10002189 A 20100303
Abstract (en)
The present invention relates to a fluid pump (1) for usage in a massage system in a vehicle seat comprising a housing (3) with a front wall (3d) at a front side and a rear wall (3e) at a rear side, a first actuator element (65) which is movable forwards and backwards, and a second actuator element (67) which is configured to be counter-directionally movable with respect to the first actuator element (65), characterised by further comprising a first piston (15) and a second piston (17) arranged at the front side, wherein the first piston (15) and the second piston (17) are movable backwards during an intake stroke and forwards during an exhaust stroke, and a third piston (107) and a fourth piston (99) arranged at the rear side, wherein the third piston (107) and the fourth piston (99) are movable forwards during an intake stroke and backwards during an exhaust stroke, wherein the first actuator element (65) is coupled to the first piston (15) and the third piston (107) such that the first piston (15) performs an intake stroke and the third piston (107) performs an exhaust stroke when the first actuator element (65) moves backwards, and such that the first piston (15) performs an exhaust stroke and the third piston (107) performs an intake stroke when the first actuator element (65) moves forwards, and the second actuator element (67) is coupled to the second piston (17) and to the fourth piston (99) such that the second piston (17) performs an exhaust stroke and the fourth piston (99) performs an intake stroke when the second actuator element (67) moves forwards, and such that the second piston (17) performs intake stroke and the fourth piston (99) performs an exhaust stroke when the second actuator element (67) moves backwards.
IPC 8 full level
F04B 1/00 (2006.01); F04B 27/02 (2006.01); F04B 35/04 (2006.01); F04B 43/00 (2006.01); F04B 43/02 (2006.01); F04B 43/04 (2006.01); F04B 45/04 (2006.01); F04B 45/047 (2006.01)
CPC (source: EP US)
F04B 1/00 (2013.01 - EP US); F04B 27/02 (2013.01 - EP); F04B 35/045 (2013.01 - EP US); F04B 43/0045 (2013.01 - EP)
Citation (applicant)
- EP 0743452 B1 20011107 - CTEX SEAT COMFORT LTD [GB]
- US 6589028 B1 20030708 - ECKERBOM ANDERS [SE], et al
- WO 2007103384 A2 20070913 - SUBMACHINE CORP [US], et al
- US 4585397 A 19860429 - CRAWFORD ROY P [US], et al
- US 5693991 A 19971202 - HITERER MISHA [IL], et al
- WO 2008135186 A1 20081113 - KONGSBERG AUTOMOTIVE AB [SE], et al
Citation (search report)
- [XYI] GB 2356024 A 20010509 - NITTO KOHKI CO [JP]
- [XYI] US 2815901 A 19571210 - HALE WILLIAM B
- [XYI] DE 19904350 A1 20000831 - VACUUBRAND GMBH & CO KG [DE]
- [Y] WO 9602760 A1 19960201 - PRICE MFG INC [CA]
- [Y] US 2732124 A 19560124
- [Y] US 2007200468 A1 20070830 - HEIM JONATHAN R [US]
- [Y] US 6672841 B1 20040106 - HERKLOTZ MARTIN [DE], et al
- [Y] US 2009146088 A1 20090611 - KLEEGREWE THOMAS [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA ME RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 10002189 A 20100303