JPS5632088A - Input torque controlling system for variable displacement pump - Google Patents
Input torque controlling system for variable displacement pumpInfo
- Publication number
- JPS5632088A JPS5632088A JP10779979A JP10779979A JPS5632088A JP S5632088 A JPS5632088 A JP S5632088A JP 10779979 A JP10779979 A JP 10779979A JP 10779979 A JP10779979 A JP 10779979A JP S5632088 A JPS5632088 A JP S5632088A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- input torque
- pilot pressure
- regulator
- torque
- 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
Links
Landscapes
- Motor Power Transmission Devices (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
PURPOSE: To prevent overloading of engine and to make an efficient use of engine output, by converting a part of work torque into hydraulic pressure, transmitting it to a regulator for a pump in running system, and thereby controlling the pump input torque in response to the load change in the working system.
CONSTITUTION: When a pump working system is set into operation while a running system is in also working, a pilot pressure Pa produced through operation of a constant-displacement pump 18 and a constant-displacement motor 23 is acted in a rod chamber of a control valve 27 for controlling the forward-driving input torque in a regulator 11. This pilot pressure Pa is proportional to the load in a working system whereas the input torque of a pump 4 is inversely proportional to variation in the pilot pressure Pa. That is, the regulator 11 has a function to lower and to input torque of pump 4 when the pilot pressure Pa is raised and to increase the torque of pump 4 when pilot pressure Pa is is lowered. With such an arrangement, it is enabled to prevent overloading of the engine 1 and to make an efficient utilization of the engine output.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10779979A JPS5632088A (en) | 1979-08-23 | 1979-08-23 | Input torque controlling system for variable displacement pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10779979A JPS5632088A (en) | 1979-08-23 | 1979-08-23 | Input torque controlling system for variable displacement pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5632088A true JPS5632088A (en) | 1981-04-01 |
Family
ID=14468319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10779979A Pending JPS5632088A (en) | 1979-08-23 | 1979-08-23 | Input torque controlling system for variable displacement pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5632088A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4586400A (en) * | 1982-06-24 | 1986-05-06 | Svenska Varv Vindenergi Ab | Soft shaft interconnecting device |
JPS63183488U (en) * | 1987-05-20 | 1988-11-25 | ||
JPH0242185A (en) * | 1988-08-01 | 1990-02-13 | Komatsu Ltd | Control device for variable-discharge pump |
US7063638B2 (en) * | 2000-12-19 | 2006-06-20 | Cnh America Llc | Continuously variable hydro-mechanical transmission |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52105304A (en) * | 1976-01-30 | 1977-09-03 | Linde Ag | Controller for pumping apparatus consisting of at least two units of pump |
-
1979
- 1979-08-23 JP JP10779979A patent/JPS5632088A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52105304A (en) * | 1976-01-30 | 1977-09-03 | Linde Ag | Controller for pumping apparatus consisting of at least two units of pump |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4586400A (en) * | 1982-06-24 | 1986-05-06 | Svenska Varv Vindenergi Ab | Soft shaft interconnecting device |
JPS63183488U (en) * | 1987-05-20 | 1988-11-25 | ||
JPH0242185A (en) * | 1988-08-01 | 1990-02-13 | Komatsu Ltd | Control device for variable-discharge pump |
US7063638B2 (en) * | 2000-12-19 | 2006-06-20 | Cnh America Llc | Continuously variable hydro-mechanical transmission |
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