Internal control device for mechanical gearbox
AssigneeRENAULT s.a.s.
InventorsJean Pierre Maillard, Michel Raoul
Life of this patent
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Abstract
An internal control device for a mechanical gearbox including first and second input clutches which, respectively, control transmission from engine torque towards first and second primary concentric shafts bearing; stationary pinions; two output shafts supporting idle pinions which are driven respectively by the first and second input shafts; and a mechanism for jaw clutching the idle pinions, which are actuated by an assembly of shift forks. All of the gearbox ratios are selected and switched by a common selector including a selector cylinder and a switching carriage which is concentric to the cylinder and which is disposed therein.
Claims15
An internal control device for a mechanical gearbox comprising:
- first and second input clutches that respectively control transmission of engine torque to concentric first and second primary shafts carrying fixed pinions, with two secondary shafts carrying idler pinions driven respectively by the first and second primary shafts, and with claw-coupling means of the idler pinions actuated by an assembly of forks,
- wherein a common selector, composed of a selection drum and a shift carriage concentric with the selection drum and disposed in the interior thereof, is configured to assure selection of and shifting between multiple gear ratios of the mechanical gearbox,
- wherein said selection drum is fixed axially,
- wherein said shift carriage is axially movable, and
- wherein said common selector is configured to assure selection of and shifting between all gear ratios of the mechanical gearbox.
A control device for a mechanical gearbox comprising:
- first and second input clutches that respectively control transmission of engine torque to concentric first and second primary shafts carrying fixed pinions, with two secondary shafts carrying idler pinions driven respectively by the first and second primary shafts, and with claw-coupling means of the idler pinions actuated by an assembly of forks,
- wherein a common selector, composed of a selection drum and a shift carriage concentric with the selection drum and disposed in the interior thereof is configured to assure selection of and shifting between all gear ratios of the mechanical gearbox, wherein the selection drum is fixed axially but is mobile in rotation.
Dependencies are inferred from the claim text.