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1. (WO2018128860) ROTOR AND METHOD OF MANUFACTURING ROTOR WITH EQUALIZED SURFACE AREAS FOR GRINDING

Pub. No.:    WO/2018/128860    International Application No.:    PCT/US2017/068232
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Sat Dec 23 00:59:59 CET 2017
IPC: F01L 1/344
B22F 5/08
B22F 5/10
Applicants: GKN SINTER METALS, LLC
Inventors: O'HARA, Douglas, R.
HILL, James, T.
Title: ROTOR AND METHOD OF MANUFACTURING ROTOR WITH EQUALIZED SURFACE AREAS FOR GRINDING
Abstract:
A rotor for a variable valve timing engine is disclosed in which the opposing planar surface (s) of the rotor have one or more recesses formed therein in order to balance, equilibrate, or equalize the planar surface areas on the opposing surfaces. Among other things, this can improve the accuracy and efficiency with which the rotor is ground during a related method of manufacturing the rotor.