Global Patent Index - EP 1608874 A2

EP 1608874 A2 20051228 - PUMP

Title (en)

PUMP

Title (de)

SCHWINGKOLBENPUMPE

Title (fr)

POMPE

Publication

EP 1608874 A2 20051228 (DE)

Application

EP 04725395 A 20040402

Priority

  • EP 2004050435 W 20040402
  • DE 10315104 A 20030402
  • DE 10319671 A 20030502

Abstract (en)

[origin: WO2004088141A2] The invention relates to a pump (1), such as a vacuum pump or a compressor, comprising a pump housing (18) and at least one pump piston (2, 3) that moves along a circular path. In order to embody a novel pump of said type, the pump piston (2, 3), which is optionally coupled in a rigid manner to one or several additional pump pistons (2, 3), moves about a swivel pin (5) so as to oscillate along a trajectory that is correspondingly provided with two reversing positions. Optionally compressed or pressurized medium is discharged via a discharge valve (8) while an intake valve (9) opens during a movement from one reversing position to the other, whereupon the medium is discharged at a given pressure end of the pump piston (2, 3) while being sucked in at an intake end thereof during a pressure build-up.

IPC 1-7

F04C 9/00

IPC 8 full level

F04C 21/00 (2006.01); F04C 23/00 (2006.01); F04C 29/00 (2006.01)

CPC (source: EP KR US)

F04C 21/00 (2013.01 - KR); F04C 21/002 (2013.01 - EP US); F04C 23/001 (2013.01 - EP US); F04C 25/00 (2013.01 - KR); F04C 29/005 (2013.01 - EP US); F04C 2220/10 (2013.01 - EP US)

Citation (search report)

See references of WO 2004088141A2

Designated contracting state (EPC)

CH DE ES FR IT LI

DOCDB simple family (publication)

WO 2004088141 A2 20041014; WO 2004088141 A3 20050106; EP 1608874 A2 20051228; JP 2006522265 A 20060928; KR 20050114270 A 20051205; US 2007104600 A1 20070510

DOCDB simple family (application)

EP 2004050435 W 20040402; EP 04725395 A 20040402; JP 2006505520 A 20040402; KR 20057018744 A 20050930; US 54996804 A 20040402