Title:
回転カムリングを有する可変容積形ポンプ
Document Type and Number:
Japanese Patent JP2004522902
Kind Code:
A
Abstract:
Vane pump (10) mechanical losses are reduced by removing vane friction losses and replacing them with lower magnitude journal bearing fluid film viscous drag losses. A freely rotating cam ring (70) is supported by a journal bearing (80). A relatively low sliding velocity is imposed between the cam ring and the vanes (26). This permits the use of less expensive and less brittle materials in the pump by allowing the pump to operate at much higher speeds without concern for exceeding vane tip velocity limits.
Inventors:
Clements, Martin A
Hansen, Lowell Dee
Hansen, Lowell Dee
Application Number:
JP2002579661A
Publication Date:
July 29, 2004
Filing Date:
March 27, 2002
Export Citation:
Assignee:
Argo-Tech Corporation
International Classes:
F01C21/08; F04C2/344; F04C14/22; F04C15/00; (IPC1-7): F04C2/344; F04C15/00
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Fujihiro Kanda
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Fujihiro Kanda