A Study on the Measurement and Estimation Method of Skew Motion of Roller-Tappets in an OHV Type DI Diesel Engine 2006-01-3348
Roller-Tappets have been adopted on the valve train systems of OHV type diesel engines, due to their low friction losses. When a roller-tappet is actuated by the cam, it moves upwards and downwards in the guide with a slight skew motion. This motion affects the life of cam and tappets. The purpose of this study was, therefore, to establish the skew estimation method. The skew motion was measured under the engine motoring condition, and its calculation based on the assumed mechanism was carried out. The calculated skew motion showed good agreement with the measured.
Citation: Ito, A., "A Study on the Measurement and Estimation Method of Skew Motion of Roller-Tappets in an OHV Type DI Diesel Engine," SAE Technical Paper 2006-01-3348, 2006, https://doi.org/10.4271/2006-01-3348. Download Citation
Author(s):
Akemi Ito
Affiliated:
Hino Motors, Ltd.
Pages: 11
Event:
Powertrain & Fluid Systems Conference and Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Diesel / compression ignition engines
Valve trains
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