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Title:
PRESSURE BOOSTER
Document Type and Number:
WIPO Patent Application WO/2020/235430
Kind Code:
A3
Abstract:
A pressure booster (10) is provided with a pilot switching valve (78) that can be brought into contact alternately with a first piston (42) and a second piston (46). The pilot switching valve includes a movable valve element (88) inserted inside a fixed valve element (80) and a pilot valve element (100) inserted inside the movable valve element, and is provided with a first pilot chamber (96) adjacent to one end of the movable valve element and a second pilot chamber (98) adjacent to another end of the movable valve element.

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Inventors:
ASABA TSUYOSHI (JP)
Application Number:
PCT/JP2020/019194
Publication Date:
December 30, 2020
Filing Date:
May 14, 2020
Export Citation:
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Assignee:
SMC CORP (JP)
International Classes:
F15B3/00
Domestic Patent References:
WO2018186048A12018-10-11
Foreign References:
US4767282A1988-08-30
Attorney, Agent or Firm:
CHIBA Yoshihiro et al. (JP)
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