Title:
HYDRAULIC CONTROL VALVE AND VALVE-TIMING CONTROL DEVICE FOR INTERNAL-COMBUSTION ENGINE USING HYDRAULIC CONTROL VALVE
Document Type and Number:
WIPO Patent Application WO/2016/021328
Kind Code:
A1
Abstract:
Provided is a hydraulic control valve wherein the degree of freedom with which ports are laid out in the axial direction is improved and wherein structural components need not have high dimensional precision. A solenoid selector valve (21) that is provided with: a valve body (50) that is a cam bolt that connects a vane rotor (9) to one end part (2a) of a cam shaft (2); a cylindrical metal spool valve (51) that is provided inside the valve body so as to be slidable in the axial direction and that switches the state of the supply/discharge of a working fluid to and from a retard hydraulic chamber (11) and an advance hydraulic chamber (12); a sleeve (52) that comprises a synthetic resin material and that is inserted into and affixed inside the spool valve; and a solenoid (55) that moves the spool valve in the axial direction. The sleeve has a partitioning wall (52c) that has a cross-shaped cross-section and that radially partitions the inside of a retaining hole (59) that is inside the spool valve into four passageways (65a-65d) that are formed for the purpose of supply to and discharge from the hydraulic chambers.
Inventors:
TAKADA YASUHIDE (JP)
Application Number:
PCT/JP2015/068489
Publication Date:
February 11, 2016
Filing Date:
June 26, 2015
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F16K11/07; F01L1/356; F16K3/24
Foreign References:
| JP2013068308A | 2013-04-18 | |||
| JP2009063022A | 2009-03-26 | |||
| US7389756B2 | 2008-06-24 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
Hiromichi Kobayashi (JP)
Hiromichi Kobayashi (JP)
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