Title:
【発明の名称】複式プランジャーポンプ
Document Type and Number:
Japanese Patent JPH0742934
Kind Code:
B2
Abstract:
Two plungers in the dual plunger pumps are selectively operated by either short-stroke cams or long-stroke cams which are disposed on a rotary drive shaft. When rotating the rotary drive shaft in one direction, the long-stroke cams are driven to operate the plungers with a large stroke. When the drive shaft rotates in the reverse direction, the long-stroke cams run idle by way of a one-way clutch disposed between the drive shaft and the long-stroke cams, while the short-stroke cams are driven to operate the plungers with a small stroke.
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Inventors:
Sanuki Sanuki
Application Number:
JP7582891A
Publication Date:
May 15, 1995
Filing Date:
March 15, 1991
Export Citation:
Assignee:
Sanuki Industry Co., Ltd.
International Classes:
F04B11/00; F04B13/00; F04B9/04; (IPC1-7): F04B13/00; F04B9/04
Attorney, Agent or Firm:
Masao Tanaka
Next Patent: AIR SUPPLY DEVICE FOR COMBUSTION FACILITY