Invention Grant
- Patent Title: Hydraulic control apparatus and hydraulic control method
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Application No.: US15464601Application Date: 2017-03-21
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Publication No.: US10247204B2Publication Date: 2019-04-02
- Inventor: Yoshiaki Kawaura , Masato Izutsu , Kenichi Fujiki , Yasuhiko Kan , Hiroyuki Taguchi , Yoshiro Umezawa , Shimpei Iizuka
- Applicant: YAMADA MANUFACTURING CO., LTD.
- Applicant Address: JP Kiryu-Shi, Gunma
- Assignee: YAMADA MANUFACTURING CO., LTD.
- Current Assignee: YAMADA MANUFACTURING CO., LTD.
- Current Assignee Address: JP Kiryu-Shi, Gunma
- Agency: McGinn IP Law Group, PLLC.
- Priority: JP2016-074632 20160401; JP2017-036488 20170228
- Main IPC: F15B1/02
- IPC: F15B1/02 ; F15B11/16 ; F16H61/00 ; F15B1/033 ; F16H63/30 ; F16H59/74

Abstract:
A hydraulic control apparatus includes: a branch path that branches from a passage connected to an oil pump and equipment to which oil is supplied by the oil pump; an accumulator connected to the branch path to accumulate and discharge high-pressure oil supplied from the branch path; a check valve provided in an oil inlet path through which oil flows into the accumulator; a balance valve unit including a reference pressure chamber, a balance valve body that is biased toward an opening side by an opening compression spring, and a control pressure chamber; and a control solenoid that introduces or discharges the high-pressure oil into or from the control pressure chamber.
Public/Granted literature
- US20170284424A1 HYDRAULIC CONTROL APPARATUS AND HYDRAULIC CONTROL METHOD Public/Granted day:2017-10-05
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