Title:
ROTARY COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2017/073019
Kind Code:
A1
Abstract:
Provided is a rotary compressor with which it is possible to reduce pulsation based on an acoustic inherent value of a two-layer structured muffler. This rotary compressor 10 is characterized in that: an upper muffler 50 has a first muffler 50A provided to the inner side, and a second muffler 50B provided to the outer side of the first muffler 50A and covering the first muffler 50A; the acoustic inherent value of the pre-specified frequency F is excited in the first muffler 50A; and the second muffler 50B absorbs sound waves of a frequency F that pass through the first muffler 50A. The gaps L2 between second discharge ports 56B1, 56B2, 56B3 of the second muffler 50B are 1/2 the gap L1 between first discharge ports 56A1 and 56A2 of the first muffler 50A, which is the most effective configuration for achieving the effects of the present invention.
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Inventors:
YAKUSHIJI SHUNSUKE (JP)
OGAWA MAKOTO (JP)
OGAWA MAKOTO (JP)
Application Number:
PCT/JP2016/004503
Publication Date:
May 04, 2017
Filing Date:
October 06, 2016
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F04C29/06
Foreign References:
| JPH05133377A | 1993-05-28 | |||
| JPS5613565U | 1981-02-05 |
Other References:
See also references of EP 3369932A4
Attorney, Agent or Firm:
OBA, Mitsuru et al. (JP)
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