Title:
INTERNAL GEAR PUMP
Document Type and Number:
WIPO Patent Application WO/2004/046554
Kind Code:
A1
Abstract:
The invention relates to a variable-flow rotor pump with a pump housing (20), comprising a suction connector (44) and a pressure connector (46), an inner-toothed outer rotor (30), arranged to rotate within the housing and an outer-toothed inner rotor (28) mounted eccentrically within the above, which may be driven by a drive shaft (26) mounted in the pump housing with the axis thereof parallel to the outer rotor (30). In order to alter the volumetric flow a rotating adjuster ring (22) is mounted in the pump housing coaxial to the drive shaft (26) in which the outer rotor (30) is eccentrically mounted such as to rotate. The outer rotor (30) is provided with bypass grooves (50) which connect the pumping chamber formed between the teeth of the inner rotor (28) and the teeth of the outer rotor (30) to the pressure connector (46).
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Inventors:
SCHNEIDER WILLI (DE)
Application Number:
PCT/EP2003/012725
Publication Date:
June 03, 2004
Filing Date:
November 14, 2003
Export Citation:
Assignee:
JOMA HYDROMECHANIC GMBH (DE)
SCHNEIDER WILLI (DE)
SCHNEIDER WILLI (DE)
International Classes:
F04C2/08; F04C2/10; F04C14/14; (IPC1-7): F04C2/10
Foreign References:
| DE10207348A1 | 2002-09-12 | |||
| EP0466351A1 | 1992-01-15 | |||
| DE4322614A1 | 1995-01-19 | |||
| US5413470A | 1995-05-09 |
Attorney, Agent or Firm:
Steimle, Josef (Fuhlendorf Steimle & Becke, Postfach 10 37 62 Stuttgart, DE)
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