JPS6411406U

JPS6411406U -

Info

Publication number: JPS6411406U
Application number: JP10658987U
Authority: JP
Priority date: 1987-07-10
Filing date: 1987-07-10
Publication date: 1989-01-20
Anticipated expiration: 2002-07-10
Also published as: JPH0638164Y2

Description

[Brief explanation of the drawing]

第１図は本考案の油圧装置の実施例における油
圧回路図であり、油圧装置が正常作動状態にある
場合を示す。第２図は本考案の油圧装置の実施例
において動力舵取装置側の油圧回路に破損が生じ
た状態を示す油圧回路図であり、第３図は本考案
の油圧装置の実施例において車高調整用のサスペ
ンシヨン制御装置側の油圧回路に破損が生じた状
態を示す油圧回路図であり、第４図は従来の油圧
装置における油圧回路図である。１……油圧装置、２……オイルリザーバ、３…
…第１油圧ポンプ、４……動力舵取装置駆動用モ
ータ（第１作動装置）、５……第２油圧ポンプ、
６……車高調整用のサスペンシヨン制御装置駆動
用モータ（第２作動装置）、７……制御弁、８，
８′……バイパス通路、１０……第１油圧回路、
２０……第２油圧回路、７１……第１導入口、７
２……第１導出口、７３……第１圧力室、７４…
…第２導入口、７５……第２導出口、７６……第
２圧力室、７７……バルブ本体、７８，７９……
バイパス導出口、８０，８１……スプリング、８
２，８３，８４……弁部、８５……可動弁体、９
１，９２……隔室。 FIG. 1 is a hydraulic circuit diagram of an embodiment of the hydraulic system of the present invention, and shows a case where the hydraulic system is in a normal operating state. Fig. 2 is a hydraulic circuit diagram showing a state where damage has occurred in the hydraulic circuit on the power steering device side in the embodiment of the hydraulic system of the present invention, and Fig. 3 is a hydraulic circuit diagram showing the vehicle height in the embodiment of the hydraulic system of the present invention. FIG. 4 is a hydraulic circuit diagram showing a state where damage has occurred in the hydraulic circuit on the suspension control device side for adjustment, and FIG. 4 is a hydraulic circuit diagram of a conventional hydraulic system. 1... Hydraulic system, 2... Oil reservoir, 3...
...first hydraulic pump, 4...power steering device drive motor (first actuating device), 5...second hydraulic pump,
6... Suspension control device drive motor for vehicle height adjustment (second actuation device), 7... Control valve, 8,
8'... Bypass passage, 10... First hydraulic circuit,
20...Second hydraulic circuit, 71...First introduction port, 7
2...First outlet port, 73...First pressure chamber, 74...
...Second inlet, 75...Second outlet, 76...Second pressure chamber, 77...Valve body, 78, 79...
Bypass outlet, 80, 81...Spring, 8
2, 83, 84... Valve section, 85... Movable valve body, 9
1,92...Separate room.

Claims

[Claims for Utility Model Registration] An oil reservoir, a first hydraulic pump that receives oil from the oil reservoir, and a first operation that operates with pressure oil from the first hydraulic pump and drains oil into the oil reservoir. a first hydraulic circuit having a device; a second hydraulic pump that receives oil from the oil reservoir; and a second operating device that operates with pressure oil from the second hydraulic pump and discharges oil into the oil reservoir. a second hydraulic circuit having a second hydraulic circuit; a first inlet for receiving pressure oil from the first hydraulic pump forming a part of the first hydraulic circuit; and a first outlet for sending pressure oil to the first actuating device. a first pressure chamber that communicates with the first inlet and the first outlet; and a second inlet that receives pressure oil from the second hydraulic pump forming a part of the second hydraulic circuit. a second pressure chamber that communicates a second outlet for supplying pressure oil to the second actuating device with the second inlet and the second outlet; and a bypass connected to the oil reservoir via a bypass passage. a valve body having an outlet;
It is slidably held in the first pressure chamber and the second pressure chamber of the valve body, and is switched in response to the differential pressure between the first pressure chamber and the second pressure chamber. The communication between the second outlet port and the first inlet port or the second inlet port is cut off, and the first
A hydraulic device comprising: a control valve comprising a movable valve body that communicates an inlet or a second inlet with a bypass passage.