Invention Grant
- Patent Title: Method for producing a groove structure in an internal surface of a piston
-
Application No.: US15679141Application Date: 2017-08-16
-
Publication No.: US10583496B2Publication Date: 2020-03-10
- Inventor: Johann Meiser
- Applicant: Mahle International GmbH
- Applicant Address: DE
- Assignee: Mahle International GmbH
- Current Assignee: Mahle International GmbH
- Current Assignee Address: DE
- Agency: Fishman Stewart PLLC
- Priority: DE102016215404 20160817
- Main IPC: B23B35/00
- IPC: B23B35/00 ; B23B41/12 ; B23B29/02 ; F16J1/16 ; F16J1/08 ; B23P15/10 ; F16C33/10 ; F02F3/00

Abstract:
A method for producing a groove structure in an internal surface of a pin bore of a piston may include providing a rotatable boring bar with at least one cutting tool; advancing the boring bar while rotating at a first rotational speed in a direction of rotation with a first feed speed into the pin bore and introducing at least one helical first groove of the groove structure with a first depth and a first width into the internal surface; and retracting the boring bar, subsequent to introducing the at least one helical first groove, from the pin bore with a second feed speed while maintaining rotation at a second rotational speed in the direction of rotation; during the retracting of the boring bar at least one helical second groove is introduced into the internal surface.
Public/Granted literature
- US20180050394A1 METHOD FOR PRODUCING A GROOVE STRUCTURE IN AN INTERNAL SURFACE OF A PISTON Public/Granted day:2018-02-22
Information query