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1. (WO2018037876) SLIDE VALVE AND REFRIGERATION CYCLE SYSTEM

Pub. No.:    WO/2018/037876    International Application No.:    PCT/JP2017/028260
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Fri Aug 04 01:59:59 CEST 2017
IPC: F16K 31/122
F16K 27/04
F25B 41/04
F16K 3/02
F16K 11/065
Applicants: SAGINOMIYA SEISAKUSHO, INC.
株式会社鷺宮製作所
Inventors: OKADA, Satoshi
岡田 聡
UENO, Tomoyuki
上野 知之
KIMURA, Hiromitsu
木村 宏光
KOIZUMI, Rei
小泉 怜
Title: SLIDE VALVE AND REFRIGERATION CYCLE SYSTEM
Abstract:
Provided is a slide valve wherein a stopper function on pistons (3) is stabilized and variance in operating performance is reduced. The ends of a cylindrical section (101) of a valve housing (10) are sealed off with stopper bodies (1). Width expansion sections (12) are provided to the inner side of fitting sections (11) of the stopper bodies (1) that are fitted to the interior of the cylindrical section (101). Expanded stopper surfaces (12a) of the width expansion sections (12) are flush with stopper plate (32)-side (piston (3)-side) end surfaces (11a) of the fitting sections (11). Stopper plates (32) of the pistons (3) are abutted against the expanded stopper surfaces (12a), along with the end surfaces (11a). Due to this configuration, the portions of contact with the stopper plates (32) are widened only by an amount commensurate with the expanded stopper surfaces (12a). A difference in contact surface area between a portion of the contact portions that has the maximum width and a portion that has the minimum width is reduced, and the stopper function is stabilized.