Title:
SCROLL-TYPE FLUID MACHINE
Document Type and Number:
WIPO Patent Application WO/2018/025338
Kind Code:
A1
Abstract:
Conventional scroll-type fluid machines did not take into account the issue of size reduction through reduction of an axial length without causing an imbalance between a compressor body unit and a motor unit in terms of dissipation of heat. In order to solve the problem, the present invention provides a scroll-type fluid machine provided with: a body unit having a fixed scroll and a turning scroll, each having a lap formed on an end plate thereof; and a motor unit having a drive shaft for driving the body unit, rotors, and a stator. Cooling fins are formed on the opposite surfaces of the fixed scroll and the turning scroll from the surfaces of the respective end plates where the laps are formed. The scroll-type fluid machine is constructed so as to satisfy α/16+lc/4≤ls≤α/4+lc where α denotes a radial dimension of the end plate of the fixed scroll, lc denotes a distance in the axial direction from the tip of the cooling fins of the fixed scroll to the tip of the cooling fins of the turning scroll, and ls denotes an axial dimension of the stator.
Inventors:
KATO FUMINORI (JP)
HIDANO KATSUSHI (JP)
EMI TAKANORI (JP)
HIDANO KATSUSHI (JP)
EMI TAKANORI (JP)
Application Number:
PCT/JP2016/072718
Publication Date:
February 08, 2018
Filing Date:
August 03, 2016
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
F04C18/02; F04B39/06; F04C29/04
Foreign References:
| JP2000120568A | 2000-04-25 | |||
| JP2012507659A | 2012-03-29 | |||
| JP2008106694A | 2008-05-08 | |||
| JP2006029238A | 2006-02-02 | |||
| JP2007321563A | 2007-12-13 | |||
| JP2014163333A | 2014-09-08 |
Other References:
See also references of EP 3495663A4
Attorney, Agent or Firm:
SEIRYO I.P.C. (JP)
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