Continuously variable transmission and transmission system
AssigneeHcvtransmission B.V.
InventorPetrus Johannes Buijsman
Life of this patent
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Abstract
The invention relates to a continuously variable transmission and a transmission system comprising said continuously variable transmission, wherein the continuously variable transmission comprises a first gear pump and a second gear pump, wherein each gear pump comprises a first gear and a second gear meshing with the first gear over an overlap distance in an overlap direction parallel to the first gear axis, wherein each gear pump further comprises an adjustment member for adjusting the pump volume, wherein the adjustment member of the first gear pump and the adjustment member of the second gear pump are interconnected by a connecting member for adjusting the pump volume of the first gear pump and the pump volume of the second gear pump in an inverse correlation to each other.
Claims20
A continuously variable transmission comprising:
- a first gear pump, and a second gear pump,
- wherein each gear pump comprises a fluid inlet, a fluid outlet and a pump volume between the fluid inlet and the fluid outlet,
- wherein each gear pump further comprises a first gear rotatable within the respective pump volume about a first gear axis and a second gear rotatable within the respective pump volume about a second gear axis and meshing with the first gear over an overlap distance in an overlap direction parallel to the first gear axis for displacing fluid through the respective pump volume from the respective fluid inlet to the respective fluid outlet,
- wherein the fluid outlet of the first gear pump is arranged in fluid communication with the fluid inlet of the second gear pump and the fluid outlet of the second gear pump is arranged in fluid communication with the fluid inlet of the first gear pump,
- wherein each gear pump further comprises an adjustment member for adjusting the pump volume of the respective gear pump,
- wherein the adjustment member of the first gear pump and the adjustment member of the second gear pump are interconnected by a connecting member that is arranged for adjusting the pump volume of the first gear pump and the pump volume of the second gear pump in an inverse correlation to each other.
A continuously variable transmission comprising:
- a first gear pump, and a second gear pump,
- wherein each gear pump comprises a fluid inlet, a fluid outlet and a pump volume between the fluid inlet and the fluid outlet,
- wherein each gear pump further comprises a first gear rotatable within the respective pump volume about a first gear axis and a second gear rotatable within the respective pump volume about a second gear axis and meshing with the first gear over an overlap distance in an overlap direction parallel to the first gear axis for displacing fluid through the respective pump volume from the respective fluid inlet to the respective fluid outlet,
- wherein each gear pump further comprises an adjustment member for adjusting the pump volume of the respective gear pump,
- wherein the adjustment member of the first gear pump and the adjustment member of the second gear pump are interconnected by a connecting member that is arranged for adjusting the pump volume of the first gear pump and the pump volume of the second gear pump in an inverse correlation to each other, wherein the continuously variable transmission further comprises a control member for controlling the adjustment members of the respective gear pumps, and
- wherein the control member comprises a switch element for switching between a first state in which the fluid outlet of the first gear pump is arranged in fluid communication with the fluid inlet of the second gear pump and the fluid outlet of the second gear pump is arranged in fluid communication with the fluid inlet of the first gear pump and a second state in which the fluid outlet of the first gear pump is arranged in fluid communication with the fluid outlet of the second gear pump and the fluid inlet of the second gear pump is arranged in fluid communication with the fluid inlet of the first gear pump.
Dependencies are inferred from the claim text.