EXPANSION VALVE

• Main Authors: ITO SHIGEKI, YAMASAKI KURATO, OKUTSU KINYA, KAMATA NAOKI, MOGI TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 15.02.2018
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; COMBINED HEATING AND REFRIGERATION SYSTEMS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

PROBLEM TO BE SOLVED: To provide an expansion valve including a spring vibration isolator which inhibits vibration of a valve body caused by influence of a high pressure refrigerant.SOLUTION: An expansion valve includes: a valve main body having an inlet hole for flowing a refrigerant into a valve chamber, and a valve hole for flowing the refrigerant from the valve chamber; a valve body which adjusts an amount of the refrigerant flowing through the valve hole; a power element which is attached to the valve main body and drives the valve body through a valve rod; a first spring vibration isolator which is provided at the valve chamber and prevents vibration of the valve body; and a second spring vibration isolator which contacts with the valve rod and prevents the vibration of the valve body.SELECTED DRAWING: Figure 1 【課題】高圧冷媒の影響による弁体の振動を抑制する防振ばねを備える膨張弁を提供する。【解決手段】冷媒を弁室に流入する入口孔及び、前記冷媒を前記弁室から流出する弁孔を有する弁本体と、前記弁孔を流れる冷媒の量を調節する弁体と、前記弁本体に取り付けられて弁棒を介して前記弁体を駆動するパワーエレメントと、前記弁室に設けられ、前記弁体の振動を防止する第１防振ばねと、前記弁棒に当接し、前記弁体の振動を防止する第２防振ばねと、を備える膨張弁。【選択図】図１