Title:
油圧バルブ
Document Type and Number:
Japanese Patent JP7026549
Kind Code:
B2
Abstract:
A hydraulic valve includes: two spools arranged in a valve main body individually movable in an axial direction and in parallel with each other, end parts thereof being housed in a common pressure chamber, and having respective guide shaft parts on the end parts thereof; a return spring provided between each of the spools and the valve main body, so that a flow of oil is controlled by a movement of the two spools with respect to the valve main body against a spring force of each of the return springs in a case where a pilot pressure is supplied to the pressure chamber; and a coupling member that is arranged in bridged between the guide shaft parts of the two spools and that is pressed in a direction of becoming closer to the spools by the return springs.
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| WO/2022/096057 | VEHICLE AIR-CONDITIONING CONTROL VALVE |
| JPS58151751 | [Title of the device] Gate valve device |
Inventors:
Yusuke Miyamoto
Yuichi Hishinuma
Shunsuke Tamura
Yuichi Hishinuma
Shunsuke Tamura
Application Number:
JP2018058737A
Publication Date:
February 28, 2022
Filing Date:
March 26, 2018
Export Citation:
Assignee:
KOMATSU LTD.
International Classes:
F16K3/24; F16K11/07
Domestic Patent References:
| JP5057537U | ||||
| JP2009204074A | ||||
| JP2002188603A | ||||
| JP3103685A | ||||
| JP2002188604A | ||||
| JP2000097366A |
Attorney, Agent or Firm:
Sakai International Patent Office