Gearshift arrangement and a vehicle
AssigneeVolvo Truck Corporation
InventorJohan Folkesson
Life of this patent
Estimating the term…
Abstract
A gearshift arrangement has a housing, a first shift rod and a second shift rod, a first chamber, a second chamber, and a third chamber. The gearshift arrangement is configured such that, when the first chamber is fluidly pressurized, the first shift rod is pushed in a direction along the first shift rod axis towards the second shift rod. When the second chamber is fluidly pressurized, the second shift rod is pushed in a direction along the second shift rod axis towards the first shift rod. When the third chamber is fluidly pressurized, the first shift rod and the second shift rod are pushed in respective directions away from one another along their respective first and second shift rod axis.
Claims17
A gearshift arrangement, comprising:
- a housing comprising an inner space defined by an inner peripheral surface,
- a first shift rod and a second shift rod, arranged with respect to each other such that end portions of the first and second shift rods face each other and wherein the first shift rod is movable within the inner space along a first shift rod axis and the second shift rod is movable within the inner space along a second shift rod axis, the first shift rod being configured to move a first shift fork between at least two positions and the second shift rod being configured to move a second shift fork between at least two positions,
- a first piston fixed to the first shift rod and a second piston fixed to the second shift rod,
- a first shift rod first sleeve and a first shift rod second sleeve arranged within the inner space, supported by the inner peripheral surface and the first piston, and configured to be relatively movable with respect to the first piston and the housing,
- a second shift rod first sleeve and a second shift rod second sleeve arranged within the inner space, supported by the inner peripheral surface and by the second piston, and configured to be relatively movable with respect to the second piston and the housing,
- a first chamber, defined by a volume enclosed by the inner peripheral surface and at least delimited by the first shift rod, the first piston and the first shift rod first sleeve, wherein the gearshift arrangement is configured such that, when the first chamber is fluidly pressurized, the first shift rod is pushed in a direction along the first shift rod axis towards the second shift rod,
- a second chamber, defined by a volume enclosed by the inner peripheral surface and at least delimited by the second shift rod, the second piston and the second shift rod first sleeve, wherein the gearshift arrangement is configured such that, when the second chamber is fluidly pressurized, the second shift rod is pushed in a direction along the second shift rod axis towards the first shift rod, and
- a third chamber, defined by a volume enclosed by the inner peripheral surface and at least delimited by the first shift rod, the second shift rod, the first shift rod second sleeve and the second shift rod second sleeve, wherein the gearshift arrangement is configured such that, when the third chamber is fluidly pressurized, the first shift rod and the second shift rod are pushed in respective directions away from one another along their respective first and second shift rod axis.
Dependencies are inferred from the claim text.