Invention Grant
- Patent Title: Production method, piston blank, piston and axial piston machine having said piston
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Application No.: US16643532Application Date: 2018-08-22
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Publication No.: US11213880B2Publication Date: 2022-01-04
- Inventor: Reinhard Kick-Rodenbücher , Lukas Kuhn , Horst Hartmann
- Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
- Applicant Address: DE Herzogenaurach
- Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
- Current Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
- Current Assignee Address: DE Herzogenaurach
- Agency: Rutan & Tucker LLP
- Agent Hani Z. Sayed
- Priority: DE102017119967.5 20170831
- International Application: PCT/DE2018/100729 WO 20180822
- International Announcement: WO2019/042495 WO 20190307
- Main IPC: B21K1/18
- IPC: B21K1/18

Abstract:
A method of producing a piston blank, comprising producing an intermediate blank of a piston for an axial piston machine by extrusion wherein the intermediate blank includes a shaft portion, a ball head portion, and a sealing portion, wherein the shaft portion connects the ball head portion to the sealing portion. The method also includes producing a piston blank of the piston from the intermediate blank and machining a through-opening in the intermediate blank, wherein the through-opening extends within the piston blank in the longitudinal direction.
Public/Granted literature
- US20200346278A1 PRODUCTION METHOD, PISTON BLANK, PISTON AND AXIAL PISTON MACHINE HAVING SAID PISTON Public/Granted day:2020-11-05
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