Receiver drier with relief valve

• US 20050115270A1
• Filed: 11/24/2004
• Published: 06/02/2005
• Est. Priority Date: 11/27/2003
• Status: Active Grant

• Current Assignee: Fujikoki Corporation
• Original Assignee: Fujikoki Corporation
• Inventors: Furuta, Takuji, Hosokawa, Kouji
• Granted Patent: US 7,322,210 B2
• Time in Patent Office: Days
• US Class Current: 62/475
• CPC Class Codes: B60H 1/00978 Control systems or circuits characterised by failure of detection or safety means; Diagnostic methods
• CPC Class Codes: F25B 2400/16 Receivers
• CPC Class Codes: F25B 43/006 Accumulators

Abstract

The invention provides a relief valve for discharging refrigerant in a receiver drier equipped to an air conditioner of a car. A receiver drier 1 of an air conditioner of a car has an inlet path 44 and an outlet path 46 of refrigerant formed to a body 10, and retains refrigerant. A valve chamber 184 is formed to the end of the body 10, which communicates with the atmosphere via a path 182 and a path 184. A plunger 170 of a solenoid valve 100 is regularly in contact with a valve seat 180. When power is supplied to the coil 120 based on a signal from a sensor, an attractor 140 separates the plunger 170 from the valve seat 180 and allows the refrigerant to be discharged to the atmosphere.

Claims

1. A receiver drier equipped to a refrigeration system of a car for temporarily retaining a liquid-phase refrigerant, the receiver drier comprising:

a cylindrical body having an opening at a bottom portion thereof;

a sealing member for airtightly sealing an opening portion of the body;

an inlet path and an outlet path for the refrigerant formed to the sealing member; and

a solenoid valve for discharging the refrigerant within the body to the atmosphere.

2. The receiver drier according to claim 1, further comprising a valve chamber having a path communicated with an interior of the body, and a valve seat formed between the valve chamber and a path communicated to the atmosphere, and the solenoid valve is equipped with a plunger that can be in contact with and separated from the valve seat.

3. The receiver drier according to claim 1 or claim 2, wherein the solenoid valve is equipped with a magnet coil, an attractor that generates magnetic attraction by the magnet coil, and a spring disposed between the attractor and the plunger.