JPS5737150A - Hydraulic pressure controller for closed circuit - Google Patents

Hydraulic pressure controller for closed circuit

Info

Publication number
JPS5737150A
JPS5737150A JP11267680A JP11267680A JPS5737150A JP S5737150 A JPS5737150 A JP S5737150A JP 11267680 A JP11267680 A JP 11267680A JP 11267680 A JP11267680 A JP 11267680A JP S5737150 A JPS5737150 A JP S5737150A
Authority
JP
Japan
Prior art keywords
closed circuit
control valve
controlling
controller
valve
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.)
Granted
Application number
JP11267680A
Other languages
Japanese (ja)
Other versions
JPS6257857B2 (en
Inventor
Tetsuo Iwai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Uchida Oil Hydraulics Mfg Co Ltd
Original Assignee
Uchida Oil Hydraulics Mfg Co Ltd
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 by Uchida Oil Hydraulics Mfg Co Ltd filed Critical Uchida Oil Hydraulics Mfg Co Ltd
Priority to JP11267680A priority Critical patent/JPS5737150A/en
Publication of JPS5737150A publication Critical patent/JPS5737150A/en
Publication of JPS6257857B2 publication Critical patent/JPS6257857B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Fluid Gearings (AREA)

Abstract

PURPOSE: To provide a hydraulic pressure controller for a closed circuit including a reversible variable capacity pump and a reversible motor which controller can produce in the closed circuit a brake pressure for decelerating the motor by improving the structure including a spool type control valve of the controller.
CONSTITUTION: A reversible variable capacity pump 1 and a reversible motor 2 are connected to each other with a closed circuit 3, and the pump 1 is provided with a controlling cylinder 10 for controlling the quantity and direction of discharge therefrom. The controlling cyliner 10 is operated by a changing-over opration of a control valve 7 to supply a pilot pressure from an auxiliary pump 4 through a pilot circuit 8, and the control circuit 7 is operated by pistons 20, 21 in response to the difference of pressure between opposite sides A and B of the closed circuit 3. Left and right chambers 12, 13 of the controlling cylinder 10 are connected to a brake control valve 28 via the control valve 7 and are communicated to each other when the valve 28 is open. Chambers 18, 19 of the control valve 7 are connected to and communicated with a joy stick valve 37 or the like.
COPYRIGHT: (C)1982,JPO&Japio
JP11267680A 1980-08-18 1980-08-18 Hydraulic pressure controller for closed circuit Granted JPS5737150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11267680A JPS5737150A (en) 1980-08-18 1980-08-18 Hydraulic pressure controller for closed circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11267680A JPS5737150A (en) 1980-08-18 1980-08-18 Hydraulic pressure controller for closed circuit

Publications (2)

Publication Number Publication Date
JPS5737150A true JPS5737150A (en) 1982-03-01
JPS6257857B2 JPS6257857B2 (en) 1987-12-03

Family

ID=14592682

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11267680A Granted JPS5737150A (en) 1980-08-18 1980-08-18 Hydraulic pressure controller for closed circuit

Country Status (1)

Country Link
JP (1) JPS5737150A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57149653A (en) * 1980-11-13 1982-09-16 Hydromatik Gmbh Control and adjusting device of fluid static pressure driving device for adjusting driving torque taking with output adjustment of added limiting power

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03279818A (en) * 1990-03-28 1991-12-11 Kubota Corp Outdoor billing machine for track scale

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57149653A (en) * 1980-11-13 1982-09-16 Hydromatik Gmbh Control and adjusting device of fluid static pressure driving device for adjusting driving torque taking with output adjustment of added limiting power
JPH0428949B2 (en) * 1980-11-13 1992-05-15 Hydromatik Gmbh

Also Published As

Publication number Publication date
JPS6257857B2 (en) 1987-12-03

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