CHECK VALVE FOR COMPRESSOR

PROBLEM TO BE SOLVED: To provide a check valve for a compressor, capable of suppressing the misalignment of a coil spring.SOLUTION: The check valve for the compressor, which is provided in a refrigerant passage for refrigerant to pass therethrough, includes a valve seat member 50, and a valve elemen...

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Bibliographic Details
Main Authors IDETO KIICHI, HOTTA KAZUHIRO, SATO SHINICHI, MITSUI TSUBASA
Format Patent
LanguageEnglish
Japanese
Published 29.06.2017
Subjects
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a check valve for a compressor, capable of suppressing the misalignment of a coil spring.SOLUTION: The check valve for the compressor, which is provided in a refrigerant passage for refrigerant to pass therethrough, includes a valve seat member 50, and a valve element 60. The valve element 60 has a trunk 63 inserted through a valve hole 54 of the valve seat member, a head 65 arranged downstream of the valve hole 54 for, when moved together with the trunk, contacting/leaving a valve seat to open/close the valve hole, a spring support part 66 arranged upstream of the valve hole and extending from the trunk to the radial outside, and a guide part 68 provided on the radial outside of the spring support part. Between the valve seat member and the spring support part, a coil spring 70 is provided such that it encircles an area around the trunk. The guide part 68 has an inner peripheral face 68U which is located on the radial outside of the coil spring for restricting the movement in the radial direction of the coil spring.SELECTED DRAWING: Figure 4 【課題】コイルバネの位置がずれてしまうことを抑制可能な圧縮機の逆止弁を提供する。【解決手段】冷媒が通過する冷媒通路内に設けられる圧縮機の逆止弁であって、弁座部材５０および弁体６０を備える。弁体６０は、弁座部材の弁孔５４に挿通される胴部６３と、弁孔５４よりも下流側に配置され胴部とともに移動することで弁座に接離して弁孔を開閉する頭部６５と、弁孔よりも上流側に配置され胴部から径方向外側に延びるバネ受け部６６と、バネ受け部の径方向外側に設けられたガイド部６８と、を有する。胴部の周囲を取り囲むように、弁座部材とバネ受け部との間にコイルバネ７０が設けられる。ガイド部６８は、コイルバネの径方向外側に位置しコイルバネの径方向における移動を規制する内周面６８Ｕを有している。【選択図】図４
Bibliography:Application Number: JP20150251875