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US 6,746,326 B2Granted
Hydraulic clutch
AssigneeDronningborg Industries A/S
InventorPeter Jensen
Life of this patent
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AssigneeDronningborg Industries A/S
InventorPeter Jensen
Estimating the term…
A fluid operated actuator includes a shaft and a housing. The shaft is at least partially mounted in the housing for relative rotation between the shaft and the housing. The shaft includes a substantially central bore in which a first piston is mounted. The shaft also includes a fluid inlet that is connectable to supply of pressurised fluid and a fluid outlet. A conduit is provided for the flow of fluid between the inlet and the outlet. One end of the housing includes a chamber in which there is mounted a valve assembly comprising a second piston and a valve arranged to selectively open or close an inlet to the chamber. Fluid exiting the outlet opens the valve and exerts a force on the second piston, causing movement thereof in a first direction. Upon movement of the first piston towards the second piston, the first piston engages with the valve to open the inlet to the chamber and allow fluid to flow out of the chamber, generating movement of the second piston in a second direction opposite to the first direction.
A fluid operated actuator comprising a shaft and a housing said shaft being at least partially mounted in the housing for relative rotation between the shaft and the housing, wherein the shaft comprises a substantially central bore in which a first piston is mounted, the shaft including a fluid inlet connectable to supply of pressurised fluid and a fluid outlet, and wherein a conduit is provided for the flow of fluid between the inlet and the outlet, one end of the housing comprising a chamber in which there is mounted a valve assembly comprising a second piston and a valve arranged to selectively open or close an inlet to said chamber, and wherein fluid exiting the outlet opens said valve and exerts a force on the second piston causing movement thereof in a first direction, and wherein upon movement of the first piston towards the second piston, the first piston engages with the valve to open the inlet to said chamber and allow fluid to flow out of said chamber, generating movement of the second piston in a second direction opposite to said first direction.
Dependencies are inferred from the claim text.