GB736975A - Improvements in hydraulic dynamometers, brakes and couplings - Google Patents
Improvements in hydraulic dynamometers, brakes and couplingsInfo
- Publication number
- GB736975A GB736975A GB2303752A GB2303752A GB736975A GB 736975 A GB736975 A GB 736975A GB 2303752 A GB2303752 A GB 2303752A GB 2303752 A GB2303752 A GB 2303752A GB 736975 A GB736975 A GB 736975A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- fluid
- pressure
- piston
- dynamometer
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/02—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders with blades or like members braked by the fluid
-
- 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
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/16—Rotary-absorption dynamometers, e.g. of brake type
- G01L3/20—Rotary-absorption dynamometers, e.g. of brake type fluid actuated
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
736,975. Dynamometers. HEENAN & FROUDE, Ltd. Dec. 10, 1953 [Sept. 13, 1952], No. 23037/52. Class 106 (2). [Also in Groups XXIX and XXXIV] A hydraulic absorption dynamometer has a valve A, Fig. 1, in its fluid outlet B, the force necessary to move the valve A against the pressure of the.fluid in the dynamometer being obtained from a pressure generator K<SP>2</SP>. By controlling the pressure in the dynamometer the torque absorbed can be regulated. The rotor J of the pressure generator K<SP>2</SP> is mounted on a shaft driven at the same speed as or at a speed proportional to the speed of the rotary part of the dynamometer. Low-pressure fluid is fed to the generator K<SP>2</SP> through a pipe m<SP>1</SP> and the fluid pressure generated is conveyed by a. pipe m<SP>4</SP> through a needle valve N<SP>1</SP> to one face of a piston D coupled to the valve A. The fluid acting on this face of the piston D can be bled through a needie valve N<SP>2</SP> and pipes m<SP>5</SP> to the opposite face of the piston D, this opposite face of the piston D being also in communication with the low pressure fluid in the pipe m<SP>1</SP>. When the valve N<SP>1</SP> is fully opened and the valve N2 is fully closed the force on the piston D tending to close the valve A will be a maximum. By slowly closing N<SP>1</SP> and causing the restriction to the fluid flow through the valve N<SP>2</SP> to be correspondingly reduced, the force tending to close the valve A can be progressively reduced until it approaches zero. The valve N<SP>2</SP> and the pipe mB may be omitted if desired. Figs. 5 and 6 illustrate the construction of the needle valves N<SP>1</SP> and N<SP>2</SP>. The controlling fluid is caused to flow through sharp-edged ports P which are varied in effective area by moving a spindle N axially through screw means associated with a hand wheel n<SP>1</SP> or other means. Specifications 24949/10, [Class 106 (ii)], and 473,270 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2303752A GB736975A (en) | 1952-09-13 | 1952-09-13 | Improvements in hydraulic dynamometers, brakes and couplings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2303752A GB736975A (en) | 1952-09-13 | 1952-09-13 | Improvements in hydraulic dynamometers, brakes and couplings |
Publications (1)
Publication Number | Publication Date |
---|---|
GB736975A true GB736975A (en) | 1955-09-14 |
Family
ID=10189079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2303752A Expired GB736975A (en) | 1952-09-13 | 1952-09-13 | Improvements in hydraulic dynamometers, brakes and couplings |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB736975A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1105196B (en) * | 1957-05-09 | 1961-04-20 | Heenan & Froude Ltd | Hydraulic dynamometer |
CN103486160A (en) * | 2013-09-13 | 2014-01-01 | 重庆交通大学 | Double-acting hydraulic retarder |
-
1952
- 1952-09-13 GB GB2303752A patent/GB736975A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1105196B (en) * | 1957-05-09 | 1961-04-20 | Heenan & Froude Ltd | Hydraulic dynamometer |
CN103486160A (en) * | 2013-09-13 | 2014-01-01 | 重庆交通大学 | Double-acting hydraulic retarder |
CN103486160B (en) * | 2013-09-13 | 2015-12-09 | 重庆交通大学 | Double-action hydrodynamic retarder |
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