JPS61103584U - - Google Patents

Info

Publication number
JPS61103584U
JPS61103584U JP18825584U JP18825584U JPS61103584U JP S61103584 U JPS61103584 U JP S61103584U JP 18825584 U JP18825584 U JP 18825584U JP 18825584 U JP18825584 U JP 18825584U JP S61103584 U JPS61103584 U JP S61103584U
Authority
JP
Japan
Prior art keywords
pressure
oil
hydraulic
servo mechanism
hydraulic servo
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP18825584U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP18825584U priority Critical patent/JPS61103584U/ja
Publication of JPS61103584U publication Critical patent/JPS61103584U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例を示す回路図、第２図
は従来技術を示す回路図である。 １……主配管（油路）、２……油圧ポンプ（液
圧回転機）、２Ａ……容量可変機構、４……サー
ボピストン（油圧サーボ機構）、５……補助ポン
プ、８……分岐配管（分岐油路）、１０……シヤ
トル弁（高圧選択弁）、１２……手動切換弁（制
御弁）、２１……減圧弁。 FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a circuit diagram showing a conventional technique. 1... Main piping (oil line), 2... Hydraulic pump (hydraulic rotating machine), 2A... Variable capacity mechanism, 4... Servo piston (hydraulic servo mechanism), 5... Auxiliary pump, 8... Branch Piping (branch oil line), 10... Shuttle valve (high pressure selection valve), 12... Manual switching valve (control valve), 21... Pressure reducing valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 油路途中に設けられ、容量を可変とするための
容量可変機構を備えた液圧回転機と、該容量可変
機構を作動せしめる油圧サーボ機構と、該油圧サ
ーボ機構の油圧源となる補助ポンプと、前記油圧
サーボ機構の他の油圧源とするため前記油路内の
圧油を自己圧として取出す分岐油路と、前記補助
ポンプと分岐油路の圧油のうち高圧側を選択する
高圧選択弁と、該高圧選択弁と前記油圧サーボ機
構との間に設けられた制御弁とからなる可変容量
型液圧回転機の制御装置において、前記分岐油路
には自己圧を前記補助ポンプの圧力よりも高い所
定圧に減圧する減圧弁を設けたことを特徴とする
可変容量型液圧回転機の制御装置。 A hydraulic rotary machine installed in the middle of an oil path and equipped with a variable capacity mechanism for making the capacity variable, a hydraulic servo mechanism that operates the variable capacity mechanism, and an auxiliary pump that serves as a hydraulic power source for the hydraulic servo mechanism. , a branch oil passage for extracting the pressure oil in the oil passage as self-pressure to serve as another oil pressure source for the hydraulic servo mechanism; and a high pressure selection valve for selecting the high pressure side of the pressure oil in the auxiliary pump and the branch oil passage. and a control valve provided between the high-pressure selection valve and the hydraulic servo mechanism, in which the branch oil path has a self-pressure higher than the pressure of the auxiliary pump. 1. A control device for a variable displacement hydraulic rotating machine, characterized in that a pressure reducing valve is provided to reduce the pressure to a predetermined high pressure.
JP18825584U 1984-12-12 1984-12-12 Pending JPS61103584U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18825584U JPS61103584U (en) 1984-12-12 1984-12-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18825584U JPS61103584U (en) 1984-12-12 1984-12-12

Publications (1)

Publication Number Publication Date
JPS61103584U true JPS61103584U (en) 1986-07-01

Family

ID=30745727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18825584U Pending JPS61103584U (en) 1984-12-12 1984-12-12

Country Status (1)

Country Link
JP (1) JPS61103584U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01118201U (en) * 1988-02-05 1989-08-10
JPH01158578U (en) * 1988-04-18 1989-11-01

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5444221A (en) * 1977-09-14 1979-04-07 Sanwa Seiki Mfg Co Ltd Branch hydraulic circuit
JPS5835689B2 (en) * 1977-12-26 1983-08-04 旭精密株式会社 drafting machine
JPS5844491B2 (en) * 1979-09-11 1983-10-04 東急車輌製造株式会社 Vibration isolation device for vehicle-mounted cylinders

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5444221A (en) * 1977-09-14 1979-04-07 Sanwa Seiki Mfg Co Ltd Branch hydraulic circuit
JPS5835689B2 (en) * 1977-12-26 1983-08-04 旭精密株式会社 drafting machine
JPS5844491B2 (en) * 1979-09-11 1983-10-04 東急車輌製造株式会社 Vibration isolation device for vehicle-mounted cylinders

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01118201U (en) * 1988-02-05 1989-08-10
JPH01158578U (en) * 1988-04-18 1989-11-01

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