THROTTLING DEVICE, AND REFRIGERATION CYCLE SYSTEM PROVIDED WITH SAME

WIPO Patent Application WO/2018/179909

A1

The objective of the present invention is to provide a throttling device with which it is possible to avoid a variation in a set length of a coil spring at a predetermined pressure before and after a spring receiving member is fixedly swaged to a needle member, and to provide a refrigeration cycle system provided therewith. By forming a needle member (11) using a material having a higher hardness than a material of a spring receiving member (14) which is to be deformed by swaging, the spring receiving member (14) is rendered more readily deformable when a swaging step is carried out using a swaging blade (40, 40', 41) such as that illustrated in figure 7A to figure 7D. Furthermore, since corner portions (11f, 11g) of a swaging groove (11d) formed on the needle member (11) side do not deform, deformation of the spring receiving member (14) in a central axis direction when the spring receiving member (14) is deformed by swaging is prevented, the relative positions of the needle member (11) and the spring receiving member (14) are less liable to change, and as a result a change in the spring load (set length) of the coil spring (13) before and after swaging is reduced.

JPS5912644	[Title of the device] Flow control valve
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JP6864533	Pneumatic controller and control valve

TAKATA YASUMASA (JP)
TOYAMA YUICHIRO (JP)
ARAI YOSHIHISA (JP)
YOKOTA JUNICHI (JP)

PCT/JP2018/004649

October 04, 2018

February 09, 2018

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SAGINOMIYA SEISAKUSHO INC (JP)

F16K17/30; F16K1/32; F25B41/06

JP2017048985A	2017-03-09
JPH06322755A	1994-11-22
JPH08210454A	1996-08-20
JP2007121972A	2007-05-17

TANI & ABE, P.C. (JP)

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