Title:
LIQUID PLUNGER TYPE BOOSTER
Document Type and Number:
Japanese Patent JP2716314
Kind Code:
B2
Abstract:
PURPOSE: To enable change-over between the maximum discharge quantity and the maximum discharge pressure according to the loaded state in a liquid plunger type booster.
CONSTITUTION: A cylindrical auxiliary cylinder chamber 9 is formed at a plunger 3 inserted into a cylinder chamber 2 in a cylinder 1. An auxiliary plunger 10 fixed to the cylinder 1 is inserted in the freely advancing/receding state into the auxiliary cylinder chamber 9 to form an auxiliary pressure chamber 11. A check valve 13 for inhibiting contraflow to a main pressure chamber 4 in the cylinder chamber 2 is provided at an inlet combined discharge port 12 for communicating the main pressure chamber 4, the auxiliary pressure chamber 11 and a discharge passage 7. A valve force-opening means 14 is further provided to force-open a suction valve 6 in a suction passage 5 when the discharge pressure from the discharge passage 7 is the specified value or more.
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Inventors:
Kishimoto Mitsufumi
Application Number:
JP8439092A
Publication Date:
February 18, 1998
Filing Date:
April 07, 1992
Export Citation:
Assignee:
Konan Electric Co., Ltd.
International Classes:
F04B53/10; F04B49/00; F15B3/00; (IPC1-7): F04B53/10; F04B49/00
Attorney, Agent or Firm:
Yoshiki Takagi