FLOW RATE ADJUSTMENT VALVE FOR REFRIGERATION CYCLE

摘要

A flow rate regulation valve is used for a refrigeration cycle device for air conditioning. The flow rate regulation valve is constituted by: an inlet flow rate control valve connected to the inlet side of an inside evaporator and functioning in the refrigeration cycle device as an expansion valve for depressurizing and expanding a refrigerant flowing into the inside evaporator; and an outlet flow rate adjustment valve connected to the outlet side of the inside evaporator and functioning as an evaporation pressure adjustment valve for adjusting evaporation pressure in the inside evaporator to a predetermined target pressure at which frost is not formed. The flow rate regulation valve is characterized in that, when the opening of one of the inlet flow rate control valve and the outlet flow rate adjustment valve increases, the flow rate regulation valve displaces so that the opening of the other decreases.

主权项

1. A flow regulating valve which is used in a refrigeration cycle system for air-conditioning use which has an inside condenser, outside heat exchanger, and inside evaporator, wherein
said flow regulating valve comprises an inlet flow control valve which is connected to an inlet side of said inside evaporator and functions as an expansion valve which reduces a pressure of and expands a refrigerant which flows into said inside evaporator in said refrigeration cycle system, and an outlet flow regulating valve which is connected to an outlet side of said inside evaporator and functions as an evaporation pressure regulator which adjusts the pressure to a predetermined target pressure where no frost forms in said inside evaporator, and said inlet flow control valve and said outlet flow regulating valve displace so that when the valve opening of one increases, the valve opening of the other decreases.