Method for deflating hydraulic acutating apparatus
A hydraulic actuation and actuator technology, which is applied in the direction of fluid pressure actuation device, transmission device control, fluid pressure actuation system components, etc., can solve problems such as foaming and the danger of air entering the system
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[0033] figure 1 A device V is shown for the hydraulic actuation of two friction clutches (not shown in detail), as is known in principle from the applicant's publication EP2532914A1. The device V comprises a pressure generator (in this case in the form of a dual-circuit hydraulic pump P) with an electric pump drive M, two pressure circuits DK1, DK2 hydraulically connected to the hydraulic pump P and for hydraulic fluid The reservoir VB, hydraulic fluid can be delivered from the reservoir VB through the hydraulic pump P in the pressure circuit DK1, DK2. Starting from the hydraulic pump P, each pressure circuit DK1, DK2 has a non-return valve RV1, RV2 which closes in the direction of the hydraulic pump P and an electromagnetically actuatable proportional throttle valve PV1, PV2 as a pressure regulator, by means of which The valves, the respective pressure circuits DK1 , DK2 , can be released in a defined manner towards the accumulator VB via the outlet lines AL1 , AL2 .
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