Invention Grant
- Patent Title: Hydraulic cylinder
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Application No.: US16092871Application Date: 2017-03-31
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Publication No.: US11167338B2Publication Date: 2021-11-09
- Inventor: Karsten Busch , Paul-Josef Nieschwietz , Frederik Knauf
- Applicant: SMS group GmbH
- Applicant Address: DE Düsseldorf
- Assignee: SMS group GmbH
- Current Assignee: SMS group GmbH
- Current Assignee Address: DE Düsseldorf
- Agency: Maier & Maier, PLLC
- Priority: DE102016205973.4 20160411
- International Application: PCT/EP2017/057708 WO 20170331
- International Announcement: WO2017/178249 WO 20171019
- Main IPC: F15B11/02
- IPC: F15B11/02 ; B21J9/12 ; F15B11/036 ; F15B15/14

Abstract:
A hydraulic cylinder comprising a cylinder, a piston element movably guided in the cylinder in a working direction and comprising an active surface, and a first opening for feeding a fluid into a cylinder chamber by the active surface. A working pressure of the fluid acting on the active surface drives the piston element in the working direction. The active surface includes a first partial surface and at least one second partial surface, the cylinder chamber being divided into a first sub chamber with the first opening by the first active surface and a second partial surface with a second opening by the second partial surface, and the partial surfaces are hydraulically separated from each other at least in a selectable operating mode.
Public/Granted literature
- US20190217373A1 HYDRAULIC CYLINDER Public/Granted day:2019-07-18
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