Title:
【発明の名称】複容積流体ポンプ
Document Type and Number:
Japanese Patent JP3120288
Kind Code:
B2
Abstract:
A dual capacity pump having at least two gear pump stages with a common fluid inlet passage (30), each pump stage having a discharge port (34,36), the discharge port for one stage communicating with a fluid pressure load through a flow delivery passage (38) and the discharge port for the other stage communicating with the flow delivery passage (38) through a one-way flow valve (42), and flow control valve means (46) responsive to an operating variable for connecting the discharge side of the other stage (36) to the common fluid inlet passage (30) during operation in a first operating range of low driving speeds for the pump and to said flow delivery passage (38) through the one-way flow valve (42) during operation in a calibrated range of values for the operating variable.
Inventors:
Glen E Swanson
William Jay Hurley
William Jay Hurley
Application Number:
JP12785591A
Publication Date:
December 25, 2000
Filing Date:
May 30, 1991
Export Citation:
Assignee:
Borg Warner Incorporated
International Classes:
F04C11/00; F04C14/02; F04C14/24; F04C14/26; F16H61/00; (IPC1-7): F04C15/04; F04C11/00
Domestic Patent References:
| JP58124082A | ||||
| JP178282U |
Attorney, Agent or Firm:
Kazuo Shamoto (4 outside)