A hydraulic cylinder assembly (12, Figure 1) and a method are provided. The cylinder assembly 12 comprises: a single-acting hydraulic cylinder 14; an oil tank 22; a fluid line 24 fluidically connecting the oil tank 22 with the hydraulic cylinder 14; and a motor unit 26 including a pump 28 disposed in the fluid line 24. The motor unit 26 comprises a motor 30 configured to operate the pump 28 to pump fluid from the oil tank 22 to the hydraulic cylinder 14 to extend the hydraulic cylinder 14, and to permit flow of fluid from the hydraulic cylinder 14 to the oil tank 22 through the pump 28 during retraction of the hydraulic cylinder 14. A pressure sensor 34 is configured to output a pressure signal indicative of pressure of hydraulic fluid in the hydraulic cylinder 14. A controller 38 is configured to control the motor unit 26 based on pressure signals received from the pressure sensor 34. The hydraulic cylinder assembly 12 is configured so that oil leaving the hydraulic cylinder 14, during retraction of the hydraulic cylinder 14, passes through the pump 28 to the oil tank 22. A tipper truck including such a hydraulic cylinder assembly is also disclosed.


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    Title :

    A hydraulic cylinder assembly


    Contributors:

    Publication date :

    2024-06-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS



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