The present invention relates to a piezohydraulic actuator (1) formed as a system having four chambers, the first chamber being a drive bellows (3), the drive bellows (3) being connected to a piezoelectric actuator And the drive bellows 3 is filled with hydraulic fluid 7 and the drive bellows 3 is hydraulically connected to the second chamber by a first check valve RV1, The second chamber as the first chamber A1 is formed as a hydraulic cylinder 9 filled with a hydraulic fluid 7 and the housing of the hydraulic cylinder 9 and the hydraulic piston 11 are mechanically parallel to the output bellows 13 The output bellows 13 is filled with the hydraulic fluid 7 and forms the third chamber as the second output A2 and the drive bellows is connected to the fourth chamber by the second check valve RV2 And the fourth chamber is hydraulically connected to the reservoir 1 5 is filled with hydraulic fluid 7 and the fourth chamber is connected to the drive bellows 13 by a third check valve RV3 and the hydraulic cylinder 9 is connected by a fourth check valve RV4 Is hydraulically connected to the output bellows (13).
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