Capacity control valve

Japanese Patent JP6091503

B2

{Technical Problem} Provided is a capacity control valve that has no internal spring positioned in the bellows of the pressure-sensitive unit and also reduces the diameter of the valve element and that of the bellows to achieve size reduction and weight reduction. {Solution to Problem} The capacity control valve comprises: a pressure-sensitive body 50 positioned in the third valve chamber 38 to apply a bias force, by extending, in the direction of opening the first valve part 41, and also to contract as the surrounding pressure increases; an adapter 53 provided on the free end of the pressure-sensitive body in the extending/contracting directions and having a circular seating surface; a third valve part 43 that moves integrally with the valve element 40 in the third valve chamber 38 and has a circular engagement surface that opens/closes the intake-side passages 34 by engaging with and separating from the seating surface of the adapter; and a solenoid 60 that applies an electromagnetic drive force to the valve element 40 in the direction of closing the first valve part 41; wherein such capacity control valve is characterized in that: the pressure-sensitive body 50 is formed by a formed bellows made of material having greater yield stress than phosphor bronze; and the formed bellows has its diameter set smaller and its stroke longer than the diameter and stroke of a phosphor bronze bellows.

Toshiaki Iwa
Yoshihiro Ogawa
Kohei Fukudome
Kenji Moriwaki

JP2014516767A

March 08, 2017

May 15, 2013

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Eagle Industry Co., Ltd.

F04B27/18; F16K31/06

JP2003172449A
JP2011508077A

WO2007119380A1

Kazuo Shigenobu
Yoshihiro Sakurai
Ryoichi Mizobuchi
Hideki Akiba
Taeko Katata
Michihiro Hayashi
Hideo Shimizu
Yuichi Takagi

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