Transmission unit for motor vehicles
AssigneeVCST, naamloze vennootschap
InventorRafael Schuermans
Life of this patent
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Abstract
Transmission unit for motor vehicles, consisting of a continuously variable transmission (2); at least one hydraulic cylinder/piston unit (13) with a pressure cheer (15) co-operating with the continuously variable transmission (2); a pressure compensation chamber (22) co-operating with the above-mentioned pressure cheer (15); and a passage connection (26) connecting the pressure compensation chamber (22) with the pressure chamber (15) , wherein a pressure-sensitive passage control member (28) is provided in the above-mentioned passage connection (26).
Claims17
Transmission unit for motor vehicles comprising:
- a continuously variable transmission;
- at least one hydraulic cylinder/piston unit with a pressure chamber co-operating with the continuously variable transmission;
- a pressure compensation chamber co-operating with the pressure chamber;
- a passage connection connecting the pressure compensation chamber with the pressure chamber;
- and a pressure-sensitive passage control member provided in the passage connection, the pressure-sensitive passage control member increasingly closing off a passage opening of the passage connection as pressure in the pressure chamber increases.
Transmission unit for motor vehicles, consisting of a continuously variable transmission;
- at least one hydraulic cylinder/piston unit with a pressure chamber cooperating with the continuously variable transmission;
- a pressure compensation chamber cooperating with the pressure chamber;
- and a passage connection connecting the pressure compensation chamber with the pressure chamber (15), characterized in that a pressure-sensitive passage control member is provided in the passage connection;
- the passage control member is located on a large diameter (D2), in other words closer to the outside diameter than to the inside diameter of the piston of the cylinder/piston unit;
- and that the pressure-sensitive passage control member is constructed such that, from a certain pressure in the pressure chamber, there is provided an increasing passage opening of the passage connection as pressure in the pressure chamber increases beyond the certain pressure, the increasing passage opening occurring in a progressive manner for a complete working range.
Dependencies are inferred from the claim text.