Provided is a hydraulic supply device. The hydraulic supply device helps to avoid damage to a first accumulator and makes the device small-sized. The first accumulator (65) of the hydraulic supply device is provided with a cylinder body (65a), a piston (65b), a first force-applying unit (65c), a communicating hole (65g), a valve body (65h) and a second force-applying unit (65c). The piston (65b) can be slidably arranged in the interior of the cylinder body (65a) and enables the interior of the cylinder body (65a) to be segmented to a back-side chamber (65e) and a first pressure accumulation chamber (65d) of accumulated hydraulic pressure. The first force-applying unit applies force towards a piston (65b) of the side of the first pressure accumulation chamber. The communicating hole is formed in the piston (65b) so that the first pressure accumulation chamber (65d) is communicated with the back-side chamber (65e). The valve body is arranged in the interior of the cylinder body (65a) and is enabled to move between the closing position for closing the communicating hole (65c) and an opening position for opening the communicating hole (65g). The second force-applying unit (65c) is arranged in the interior of the cylinder body (65a) such that the valve body (65h) applies force at the closing position. When hydraulic pressure in the first pressure accumulation chamber (65d) reaches the stated upper limit, the valve body (65h) is allowed to move from the closing position to the opening position.


    Access

    Download


    Export, share and cite



    Title :

    Hydraulic supply device


    Contributors:

    Publication date :

    2015-04-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



    Hydraulic supply device

    KWANG SEOK HONG | European Patent Office | 2022

    Free access

    Hydraulic supply device

    European Patent Office | 2016

    Free access

    Hydraulic supply device

    HONG KWANG SEOK | European Patent Office | 2023

    Free access

    Hydraulic supply device

    European Patent Office | 2023

    Free access

    HYDRAULIC SUPPLY DEVICE

    European Patent Office | 2024

    Free access