Title:
【発明の名称】ストロ-ク可変装置
Document Type and Number:
Japanese Patent JPH0656162
Kind Code:
B2
Abstract:
A stroke variable device comprising a large diameter cylinder and a small diameter cylinder which are interconnected to each other. A large diameter piston and a small diameter piston are slidably inserted into the large diameter cylinder and the small diameter cylinder, respectively, and a cylinder chamber is formed between the inner end of the large diameter piston and the inner end of the small diameter piston. A first seal member is arranged to surround the projecting outer end of the large diameter piston, and a second seal member is arranged to surround the projecting outer end of the small diameter piston. One end of the first seal member is fixed to the projecting outer end of the large diameter piston, and the other end thereof is fixed to the housing of the device to form a first hermetically sealed chamber therein. In addition, one end of the second seal member is fixed to the projecting outer end of the small diameter piston, and the other end thereof is fixed to the housing of the device to form a second hermetically sealed chamber therein. The cylinder chamber and both hermetically sealed chambers are filled with oil.
Inventors:
Daisaku Sawada
Takashi Takahashi
Takashi Takahashi
Application Number:
JP4683487A
Publication Date:
July 27, 1994
Filing Date:
March 03, 1987
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02M47/02; F16J3/04; F02M51/06; F02M63/00; F15B7/00; (IPC1-7): F15B7/00
Attorney, Agent or Firm:
Aoki Ao (5 people outside)
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