Title:
RECIPROCATING DISPLACEMENT TYPE COMPRESSION DEVICE EQUIPPED WITH CONTACTLESS SUCTION/DISCHARGE MECHANISM
Document Type and Number:
WIPO Patent Application WO/2015/072547
Kind Code:
A1
Abstract:
[Problem] To provide a high-efficiency permanent reciprocating displacement compression device that is capable of enabling a fluid to contactlessly enter and exit to and from a suction port and a discharge port at high speed. [Solution] A reciprocating displacement compression device having a contactless suction/discharge mechanism characterized in that: a pair of ports comprising a suction port and a discharge port positioned on a cylinder inner surface outside of the compressing end of a compression chamber are arranged so as to face each other; groove parts having a prescribed depth and grooveless parts having no groove are alternately disposed, at equal spacing, on a peripheral section of a piston in the circumferential direction of the peripheral section, said peripheral section being located on the compression-chamber-side end and having a prescribed width in the reciprocating direction of the piston; a suction stroke and a compression/discharge stroke are repeated as the piston is caused to reciprocate while rotating by a driving means; and the suction of fluid is blocked by means of fluid resistance generated by a gap.
Inventors:
OKANO MAKOTO (JP)
FUCHINO SHUICHIRO (JP)
FURUSE MITSUHO (JP)
HOJO HISAO (JP)
FUCHINO SHUICHIRO (JP)
FURUSE MITSUHO (JP)
HOJO HISAO (JP)
Application Number:
PCT/JP2014/080207
Publication Date:
May 21, 2015
Filing Date:
November 14, 2014
Export Citation:
Assignee:
NAT INST OF ADVANCED IND SCIEN (JP)
VACUUM PRODUCTS CO LTD (JP)
VACUUM PRODUCTS CO LTD (JP)
International Classes:
F04B7/06; F25B1/02
Foreign References:
| JP2012031805A | 2012-02-16 | |||
| JPS62503180A | 1987-12-17 | |||
| JP2002250274A | 2002-09-06 |
Attorney, Agent or Firm:
NAKAGAWA KUNIO (JP)
Kunio Nakagawa (JP)
Kunio Nakagawa (JP)
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