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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2018/139530
Kind Code:
A reciprocating compressor provided with: a cylinder (5) which includes a tubular cylinder portion (6) and a cylinder head portion (7) disposed on one side of the cylinder portion (6); and a piston mechanism (8) which includes a piston (9) reciprocably inserted and fitted on the inner peripheral side of the cylinder portion (6) and defining a compression chamber (10) and a non-compression chamber (11) in the cylinder portion (6). In addition, the cylinder head portion (7) is formed with a bottomed hole-shaped valve body housing (7B) that opens on the side opposing the piston (9) in an axial direction of the cylinder portion (6). The valve body housing (7B) is fitted with an ejection valve unit (18) inserted into the valve body housing (7B), and with a valve holding member (21) for holding the ejection valve unit (18) in the valve body housing (7B), the valve holding member (21) having a communication hole (21D) communicating between the valve body housing (7B) and the compression chamber (10).

More Like This:
ITO, Tsutomu (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
MARUTA, Takafumi (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
Application Number:
Publication Date:
August 02, 2018
Filing Date:
January 25, 2018
Export Citation:
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HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
International Classes:
F04B39/10; F04B35/01; F04B39/12
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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