Hydraulic pressure control apparatus

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United States of America Patent

PATENT NO 9829089
SERIAL NO

15287315

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Abstract

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A hydraulic pressure control apparatus includes a first pressure regulating valve for reducing an initial oil pressure (line pressure) of a working oil, a solenoid-operated valve for converting the oil pressure, which has been reduced in pressure, into a solenoid pressure, and a second pressure regulating valve for converting the line pressure of the working oil into an actuating pressure responsive to the solenoid pressure. The three valves share a single body. Further, an outlet passageway is formed along a thicknesswise direction of the body, with a relief valve being formed upwardly of the outlet passageway.

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Patent Owner(s)

Patent OwnerAddress
HITACHI ASTEMO LTD2520 TAKABA HITACHINAKA-SHI 3128503

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ito, Susumu Kiyose, JP 129 1855
Suda, Kenji Sendai, JP 40 251
Terajima, Tomotaka Chofu, JP 2 6
Yamada, Kouichi Miyagi-ken, JP 91 1288

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