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[CN 201910088643.9] Hydraulic Press Title: Hydraulic Press Application Number: CN 201910088643.9 Applicant: Danfoss Co., Ltd. Application Date: 2019-1-29 Patent Type: Invention Application This article describes a hydraulic press, which includes a first part (1, 4) and a second part (7, 8), wherein the first part (1, 4) and the second part (7, 8) can move in an adjacent relationship relative to each other, the first part (1, 4) comprises a pressure chamber (2) having a pressure chamber opening (6) in a contact surface (5) which is in contact with a sealing surface (9) of the second part (7, 8), the second part (7, 8) comprises a low-pressure area (10) connected to a low-pressure opening (11) in the sealing surface (9) and a high-pressure area (12) connected to a high-pressure opening (13) in the sealing surface (9), wherein, during the movement of the first part (1, 4) relative to the second part (7, 8) in the movement direction (14), the pressure chamber openings (6) alternately overlap the low pressure openings (11) and the high pressure openings (13). Such a machine can be operated flexibly and the risk of damage caused by cavitation is low. For this purpose, a throttle channel (15) in the second part (7, 8) connects the low-pressure region (10) to a region of the sealing surface (9) which is located in front of the low-pressure opening (11) in the direction of displacement.
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