Title:
EVAPORATIVE PRESSURE REGULATION VALVE
Document Type and Number:
Japanese Patent JP2015152137
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an evaporative pressure regulation valve capable of suppressing generation of noise in starting a cycle which may have a dry operation state.SOLUTION: In a constitution including a body 3 provided with a refrigerant passage 2 inside, a valve element 4 for regulating an opening/closing degree of the refrigerant passage 2, bellows 5 applying a load to a side to close the refrigerant passage 2 to the valve element 4, a stem 6 provided in the bellows 5 and interlocked with the valve element 4, and a guide 7 in which the stem 6 is slid, the inside of the bellows 5 is applied as a sealed space free from intrusion of a refrigerant, and an O-ring 16 is mounted to apply sliding resistance to the stem 6 inside of the bellows 5. As the lubrication environment is not changed inside of the bellows, stable sliding resistance can be secured at all times, and the generation of noise can be suppressed as the sliding resistance by the O-ring 16 can be prevented from being excessive even in a dry operation state in starting a cycle.
Inventors:
HONDA SHIN
Application Number:
JP2014028357A
Publication Date:
August 24, 2015
Filing Date:
February 18, 2014
Export Citation:
Assignee:
DENSO CORP
International Classes:
F16K17/30; F16K47/02; F25B41/06
Domestic Patent References:
| JPS55100759U | 1980-07-14 | |||
| JP2781064B2 | 1998-07-30 | |||
| JPH0547639U | 1993-06-25 |
Attorney, Agent or Firm:
Patent Business Corporation Yuai Patent Office
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