IT1073528B - Variable power transmission control - uses valve with several different gear step positions connected to operating lever - Google Patents

Variable power transmission control - uses valve with several different gear step positions connected to operating lever

Info

Publication number
IT1073528B
IT1073528B IT1294076A IT1294076A IT1073528B IT 1073528 B IT1073528 B IT 1073528B IT 1294076 A IT1294076 A IT 1294076A IT 1294076 A IT1294076 A IT 1294076A IT 1073528 B IT1073528 B IT 1073528B
Authority
IT
Italy
Prior art keywords
gear step
power transmission
step positions
variable power
different gear
Prior art date
Application number
IT1294076A
Other languages
Italian (it)
Original Assignee
Srm Hydromekanik Ab
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
Priority claimed from GB357276A external-priority patent/GB1559491A/en
Application filed by Srm Hydromekanik Ab filed Critical Srm Hydromekanik Ab
Application granted granted Critical
Publication of IT1073528B publication Critical patent/IT1073528B/en

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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/62—Gearings having three or more central gears
    • 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
    • F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/06—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
    • F16H47/08—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type the mechanical gearing being of the type with members having orbital motion
    • 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

Abstract

A variable power transmission includes a torque converter operatively engageable with a vehicle I.C. engine and having a releasable torque transmitting bladed component movable between a hydraulic drive position and a direct drive position and a neutral position. There is a multi-speed planetary gear having an input connected to the torque converter output. The planetary gear includes a planet gears having more than one section of different diameters, and an annular gear engaging each of the sections. There are friction couplings for holding each of the annular gears stationary, each under the action of a servo-motor non-rotatively mounted in a stationary portion of the casing. There is a control valve having a number of different gear step positions, one gear step position for controlling the flow of pressurised fluid to each of the servo-motors, and a lever for operating the control valve. The lever is movable to a number of different gear step positions.
IT1294076A 1976-01-29 1976-12-16 Variable power transmission control - uses valve with several different gear step positions connected to operating lever IT1073528B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB357276A GB1559491A (en) 1976-01-29 1976-01-29 Change speed gear boxes
DE19762621447 DE2621447C2 (en) 1976-01-29 1976-05-14 Manually switchable power transmission device for motor vehicles

Publications (1)

Publication Number Publication Date
IT1073528B true IT1073528B (en) 1985-04-17

Family

ID=25770456

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1294076A IT1073528B (en) 1976-01-29 1976-12-16 Variable power transmission control - uses valve with several different gear step positions connected to operating lever

Country Status (2)

Country Link
IT (1) IT1073528B (en)
SE (1) SE434559B (en)

Also Published As

Publication number Publication date
SE7610211L (en) 1977-07-30
SE434559B (en) 1984-07-30

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