【発明の名称】球状ピストンポンプ - ALFRED TEVES GESELLSCHAFT MIT BESCHRANKER HAFTUNG

Title:

【発明の名称】球状ピストンポンプ

Document Type and Number:

Japanese Patent JPH081168

Kind Code:

B2

Abstract:

A radial piston device (especially a pump) has pistons (25) slidably guided directly in respective cylinder bores (14) of a rotary cylinder body (7), the pistons carrying balls (15) for co-operating with the inner surface of an eccentrically mounted cam ring (8). The cylinder body (7) is rotatable around a pintle (20) provided with inflow and outflow passages (21, 22). The cam ring (8) is rotatably mounted on the casing (1) via roll bodies (30). If due to high friction in the cylinder bore (14) the balls (15) tend to slide on the cam ring (8) instead of rolling, the cam ring (8) can rotate. Thus sliding of the balls (15) on the running surface of the cam ring (8), which is unfavourable with regard to efficiency, is prevented by the rotation of the cam ring (8).

Inventors:

Ludwighi Budetzker
Georg Obersteiner

Application Number:

JP18434285A

Publication Date:

January 10, 1996

Filing Date:

August 23, 1985

Export Citation:

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Assignee:

ALFRED TEVES GESELLSCHAFT MIT BESCHRANKER HAFTUNG

International Classes:

F04B1/10; F04B1/04; F04B1/107; F04B1/113; (IPC1-7): F04B1/10; F04B1/107; F04B1/113

Domestic Patent References:

JP57200677A
JP52154104A
JP436659B1

Attorney, Agent or Firm:

Takehiko Suzue (2 outside)

Next Patent: MAGNETIC DEVICE IN WATER TREATMENT APPARATUS