GB542909A - Improvements in hydraulic control mechanisms - Google Patents

Improvements in hydraulic control mechanisms

Info

Publication number
GB542909A
GB542909A GB1217240A GB1217240A GB542909A GB 542909 A GB542909 A GB 542909A GB 1217240 A GB1217240 A GB 1217240A GB 1217240 A GB1217240 A GB 1217240A GB 542909 A GB542909 A GB 542909A
Authority
GB
United Kingdom
Prior art keywords
rods
hydraulic
liquid
bores
constituted
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
Application number
GB1217240A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1217240A priority Critical patent/GB542909A/en
Publication of GB542909A publication Critical patent/GB542909A/en
Expired legal-status Critical Current

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
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/005—With rotary or crank input
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/06—Details
    • F15B7/08—Input units; Master units
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
    • 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
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
    • F16H2061/304—Hydraulic or pneumatic motors or related fluid control means therefor using telemotors, i.e. systems with master cylinder and linked shift actuator without external pressure source

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

542,909. Hydraulic controls. PRATT, J. H., MANLEY, G. E., and GIRLING, A. H. G. July 26, 1940, No, 12172. [Class 69 (ii)] In control mechanism wherein an actuating member is operated from a control member through hydraulic agency, a leakage passage is interposed between a liquid reservoir and a part of the hydraulic system which is under pressure when the control mechanism is in use, the passage having negligible capacity during an operation but permitting liquid to pass during the long periods of rest. The leakage passage may be constituted by the space between an unpacked piston and its cylinder. Alternatively, the reservoir 8 and the parts 7, 9 subject to pressure are connected by bores 5b, 5c in the packed pistons 5, the bores 5b being almost filled by rods 16 of aluminium &c. having a higher co-efficient of expansion than the pistons ; the liquid leak around the rods thus diminishes in area as the viscosity diminishes ; the rods may be grooved or screw-threaded and are pressed by springs against washers abutting on filter pads 19. Leak spaces may alternatively be constituted by the spaces between the tops and bottoms of a screw and its nut. U.S.A. Specification 1,909,768 is referred to.
GB1217240A 1940-07-26 1940-07-26 Improvements in hydraulic control mechanisms Expired GB542909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1217240A GB542909A (en) 1940-07-26 1940-07-26 Improvements in hydraulic control mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1217240A GB542909A (en) 1940-07-26 1940-07-26 Improvements in hydraulic control mechanisms

Publications (1)

Publication Number Publication Date
GB542909A true GB542909A (en) 1942-02-02

Family

ID=9999658

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1217240A Expired GB542909A (en) 1940-07-26 1940-07-26 Improvements in hydraulic control mechanisms

Country Status (1)

Country Link
GB (1) GB542909A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1011295B (en) * 1953-09-03 1957-06-27 Magneti Marelli Spa Pressure medium control device for actuating a movable control element, in particular for controlling the overdrive gear of the change gears of motor vehicles
DE1118617B (en) * 1956-11-13 1961-11-30 Ford Werke Ag Steering wheel shift for motor vehicle gearbox
FR2837258A1 (en) * 2002-03-15 2003-09-19 Renault Hydraulic control for motor vehicle gearshift has master cylinder on gear lever connected to slave cylinder on gearbox selector by pressure hoses

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1011295B (en) * 1953-09-03 1957-06-27 Magneti Marelli Spa Pressure medium control device for actuating a movable control element, in particular for controlling the overdrive gear of the change gears of motor vehicles
DE1118617B (en) * 1956-11-13 1961-11-30 Ford Werke Ag Steering wheel shift for motor vehicle gearbox
FR2837258A1 (en) * 2002-03-15 2003-09-19 Renault Hydraulic control for motor vehicle gearshift has master cylinder on gear lever connected to slave cylinder on gearbox selector by pressure hoses

Similar Documents

Publication Publication Date Title
KR910006052A (en) Shock absorber
GB1112494A (en) Improvements in and relating to training apparatus
GB542909A (en) Improvements in hydraulic control mechanisms
DE3569148D1 (en) Arrangement for a spring suspension system
GB887631A (en) An hydraulic master cylinder and dual piston assembly
ES8706240A1 (en) Hydraulic assistance device.
GB543672A (en) Improvements in hydraulic control mechanism
GB822876A (en) Improved master cylinder for hydraulic braking installation or the like
US2283961A (en) Pressure booster unit
GB542871A (en) Improvements in hydraulic control mechanisms
DE3875218D1 (en) TWO-CIRCUIT-CONTROLLED BRAKE PRESSURE CONTROL VALVE.
US2308501A (en) Master cylinder
JPS57198175A (en) Hydraulic system for tilting a cab
GB1155160A (en) Improvements in or relating to Fluid Pressure Cylinders
GB544669A (en) Improvements in or relating to hydraulic braking and like systems
GB361521A (en) Improvements in shock absorbing construction
GB554762A (en) Improvements in or relating to hydraulic vibration dampers
ES315810A1 (en) Hydraulic control devices for braking systems of vehicles
GB519431A (en) Improvements in or relating to shock absorbers
GB509640A (en) Improvements in or relating to road vehicles
GB511949A (en) Improvements relating to hydraulic control mechanisms
ES258416A3 (en) Improvements in pneumatic and hydraulic pressure multipliers or intensifyers (Machine-translation by Google Translate, not legally binding)
ES323991A1 (en) A disc brake device with partial warming. (Machine-translation by Google Translate, not legally binding)
ES257131A1 (en) Safety device for hydraulic brakes installations in vehicles (Machine-translation by Google Translate, not legally binding)
GB553273A (en) Improvements in or relating to hydraulic control mechanism