Global Patent Index - EP 1078164 A1

EP 1078164 A1 2001-02-28 - AXIAL PISTON PUMP

Title (en)

AXIAL PISTON PUMP

Title (de)

AXIALKOLBENPUMPE

Title (fr)

POMPE A PISTONS AXIAUX

Publication

EP 1078164 A1 (DE)

Application

EP 99936253 A

Priority

  • DE 9901467 W
  • DE 19823353 A

Abstract (en)

[origin: DE19823353A1] The control openings (5,6) of the control disks (1), slide disk and piston drum lie on a smaller pitch circle than that of the piston pitch circle and retain the same inlet surface inwards from here. Both the piston drum and the control disk (1) are fitted at their rim with a carrier ring (3) which in turn lies close to the piston pitch circle specified. At the ring (3) at least one of the control openings (6) is allocated an exactly positioned kidney-shaped pressure support area (9) joined by a boring to the opening in question. In the case of a single support area (9) being fitted, then this lies on the axis of the centers of gravity of the outer pressure support areas, the piston half ring and that of the control opening.

IPC 1-7 (main, further and additional classification)

F04B 1/20

IPC 8 full level (invention and additional information)

F04B 1/20 (2006.01)

CPC (invention and additional information)

F04B 1/2042 (2013.01)

Citation (search report)

See references of WO 9960269A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

DE 19823353 A1 19991125; EP 1078164 A1 20010228; WO 9960269 A1 19991125

INPADOC legal status


2003-05-02 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20021009

2002-01-02 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20011115

2001-02-28 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000908

2001-02-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE