Title:
容量制御弁
Document Type and Number:
Japanese Patent JP6756622
Kind Code:
B2
Abstract:
A function of discharging foreign matter entering a space between an outer peripheral surface of a valve element and an inner peripheral surface of a body, and a function of aligning the valve element are remarkably improved. In a displacement control valve 1 including a valve housing 2, a valve element 15 fitted in a guide passage 10 of the valve housing 2, for opening and closing a control passage, and a solenoid 30 for driving the valve element 15 to open and close it, a tapered portion 13a is provided at one of an outer peripheral surface 15a of the valve element 15 and a guide surface 10a of the guide passage 10, and a spiral groove 22 is provided in the other, the tapered portion 13a is set so that a gap between the outer peripheral surface 15a of the valve element 15 and the guide surface 10a of the guide passage 10 is larger toward the low-pressure side than on the high-pressure side, and the tapered portion 13a and the spiral groove 22 are provided so that a starting point 14 of the tapered portion 13a is located within the region of the spiral groove 22 in the entire range between the starting point and the ending point of the stroke of the valve element 15.
Inventors:
Hayama Masahiro
Hideki Todoen
Futako Masayuki
Kohei Fukudome
Hideki Todoen
Futako Masayuki
Kohei Fukudome
Application Number:
JP2016566325A
Publication Date:
September 16, 2020
Filing Date:
December 21, 2015
Export Citation:
Assignee:
Eagle Industry Co., Ltd.
International Classes:
F16K51/00; F04B27/14
Domestic Patent References:
| JP2003301773A | ||||
| JP48020049B1 | ||||
| JP2001263529A | ||||
| JP2009002507A |
Foreign References:
| WO2013176012A1 |
Attorney, Agent or Firm:
Yasushi Amasaka
Yoshihiro Sakurai
Yoshihiro Sakurai