THROTTLE DEVICE AND REFRIGERATING CYCLE

Number of patents in Portfolio can not be more than 2000

United States of America Patent

SERIAL NO

15546677

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In a throttle device depressurizing and sending a refrigerant condensed by the condenser to the evaporator, hunting of a needle valve is prevented and hysteresis in differential pressure-flow rate characteristics in a high-pressure region is reduced. A valve seat member, in which a valve port is formed, and a cylindrical guide member, which is integral with the valve seat member, are provided in a cylindrical main body case configuring a primary chamber connected to the condenser and a secondary chamber connected to the evaporator. The needle valve and a coil spring energizing toward the valve port are provided in the guide member. A blade member is provided on a boss portion of the needle valve. A blade of the blade member abuts on a cylindrical guide surface of the guide member to apply sliding resistance.

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Patent Owner(s)

Patent OwnerAddress
KABUSHIKI KAISHA SAGINOMIYA SEISAKUSHO55-5 WAKAMIYA 2-CHOME NAKANO-KU TOKYO 165-0033

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Takada, Yasumasa Sayama-shi, Saitama, JP 10 21
Toyama, Yuichiro Sayama-shi, Saitama, JP 8 6
Yagi, Shinpei Sayama-shi, Saitama, JP 5 28
Yokota, Junichi Sayama-shi, Saitama, JP 35 812

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