GB740812A - Improvements in or relating to apparatus for the speed regulation of hydraulic motors - Google Patents
Improvements in or relating to apparatus for the speed regulation of hydraulic motorsInfo
- Publication number
- GB740812A GB740812A GB2588952A GB2588952A GB740812A GB 740812 A GB740812 A GB 740812A GB 2588952 A GB2588952 A GB 2588952A GB 2588952 A GB2588952 A GB 2588952A GB 740812 A GB740812 A GB 740812A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- valve
- orifice
- pressure
- pump
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/46—Automatic regulation in accordance with output requirements
- F16H61/47—Automatic regulation in accordance with output requirements for achieving a target output speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4043—Control of a bypass valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/46—Automatic regulation in accordance with output requirements
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
740,812. Fluid-pressure servomotor-control systems. KEELAVITE CO., Ltd. Feb. 9, 1954 [Nov. 15, 1952], No. 25889/52. Class 135. A hydraulic motor D, fed from a pump A through conduits C, C<SP>1</SP> drives a governor pump F<SP>3</SP> of the metering type through a transmission F<SP>2</SP> having a determined but not necessarily constant speed ratio, and the governor pump discharges through an adjustable orifice H the pressure upstream of which is applied to means which controls jointly and in opposite senses escape of liquid from the supply passage to the motor and flow of liquid through the outlet from the motor so that the control is effective when the motor is either driving or being driven by its load. In the embodiment described, the means consists of a by-pass valve K<SP>6</SP> in the supply to the motor and, integral with it, a throttling valve K' in the outlet E from the motor. The valves are actuated against a spring L by pressure acting on the upper surface of the valve K<SP>7</SP> . A safety valve H<SP>2</SP> is arranged in parallel with the orifice H and the latter may include means for maintaining a constant pressure drop across it. The area of the orifice may be varied manually or, as shown, automatically by a cam M driven by the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2588952A GB740812A (en) | 1952-11-15 | 1952-11-15 | Improvements in or relating to apparatus for the speed regulation of hydraulic motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2588952A GB740812A (en) | 1952-11-15 | 1952-11-15 | Improvements in or relating to apparatus for the speed regulation of hydraulic motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB740812A true GB740812A (en) | 1955-11-23 |
Family
ID=10235014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2588952A Expired GB740812A (en) | 1952-11-15 | 1952-11-15 | Improvements in or relating to apparatus for the speed regulation of hydraulic motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB740812A (en) |
-
1952
- 1952-11-15 GB GB2588952A patent/GB740812A/en not_active Expired
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