Pre-Oiling System during Cold-Start of SI Engine Helsinki Institute of Technology

Format:

Conference/Event

Author/Creator:

Parpola, Matti, author.

Conference Name:

1994 Subzero Engineering Conditions Conference and Exposition (1994-02-21 : Brainerd, Minnesota, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1994

Summary:

Cold-startability of a modern SI-engine is no longer a problem, thanks to advanced fuel injection and ignition systems as well as engine pre-heaters. However, the engine lubrication does not work as required before the oil pressure has been built up at even the farmost end of the lube system. In subzero conditions down to -30 °C this means the engine may run 30 70 seconds after turning the ignition key without the camshaft and valve mechanism receiving sufficient lubrication /1/. Daily cold-starts in very low ambient temperatures may be critical to the engine life, especially if the lubricant has not been chosen carefully.By using a pre-oiling device generating pressure in the main oil gallery before starting, the lubrication delay can be significantly shortened if the lubricant is a mineral oil. However, the pre-oiling also needs pre-heating

Notes:

Vendor supplied data

Publisher Number:

940080

Access Restriction:

Restricted for use by site license