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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2017/002667
Kind Code:
Provided is a plunger pump that has improved maintainability while achieving a protective structure. The plunger pump 1 is provided with: an air motor unit 10 driven by compressed air and having a piston 13 that can reciprocate inside an air cylinder 11 along an axis L; a pump unit 20 having a plunger 22 that can reciprocate integrally with the piston 13 inside a pump cylinder 21 along the axis L; a rod part 40 that extends in a space S between the air cylinder 11 and the pump cylinder 21 in the axis L direction and transmits drive power of the air motor 10 to the pump unit 20; and a plurality of struts 50 disposed apart around the rod part 40 in the peripheral direction and extend in the axis L direction, and join the air cylinder 11 and the pump cylinder 21. At least one cover 41 capable of pivoting about the struts 50 is attached to at least one of the plurality of struts 50, and a space S is opened to or shielded from the outside by opening and closing the cover 41.

WATANABE, Mitsuo (3176 Shinyoshida-cho, Kohoku-ku, Yokohama-sh, Kanagawa 01, 〒2238501, JP)
YOSHIHARA , Kaoru (3176 Shinyoshida-cho, Kohoku-ku, Yokohama-sh, Kanagawa 01, 〒2238501, JP)
Application Number:
Publication Date:
January 05, 2017
Filing Date:
June 21, 2016
Export Citation:
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ANEST IWATA CORPORATION (3176, Shinyoshida-cho Kohoku-ku, Yokohama-sh, Kanagawa 01, 〒2238501, JP)
International Classes:
F04B53/14; B05C5/00; F04B9/02; F04B9/135; F04B23/00
Foreign References:
Attorney, Agent or Firm:
ONO, Shinjiro et al. (YUASA AND HARA, Section 206 New Ohtemachi Bldg., 2-1, Ohtemachi 2-chome, Chiyoda-k, Tokyo 04, 〒1000004, JP)
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