Global Patent Index - EP 0826883 B1

EP 0826883 B1 20010509 - Rotary piston pump

Title (en)

Rotary piston pump

Title (de)

Rotationskolbenpumpe

Title (fr)

Pompe à piston rotatif

Publication

EP 0826883 B1 20010509 (DE)

Application

EP 97114889 A 19970828

Priority

  • DE 19635540 A 19960902
  • DE 19645501 A 19961105

Abstract (en)

[origin: EP0826883A2] The pump has a housing (17) with rotary piston (1) and rotary cylinder (2). Piston or cylinder is driven from outside the housing, and the piston drives the cylinder, or vice versa. A sector-shaped segment on the cylinder circumference extends so far in circumferential direction of the cylindrical housing chamber (10), that the intake and discharge channels (8,9) can be closed simultaneously by the rotary piston. The cylinder is guided in grooves (15) or bushes, or on rails etc. in the side walls (6) of the housing chamber.

IPC 1-7

F04C 2/344

IPC 8 full level

F04C 2/352 (2006.01)

CPC (source: EP)

F04C 2/352 (2013.01)

Designated contracting state (EPC)

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

DOCDB simple family (publication)

EP 0826883 A2 19980304; EP 0826883 A3 19980318; EP 0826883 B1 20010509; DE 19730988 A1 19980312

DOCDB simple family (application)

EP 97114889 A 19970828; DE 19730988 A 19970718