Automotive Technology: Principles, Diagnosis, and Service (5th Edition)
5th Edition
ISBN: 9780133994612
Author: James D. Halderman
Publisher: PEARSON
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Textbook Question
Chapter 23, Problem 1RQ
What causes a wedge-shaped film to form in the oil?
Expert Solution & Answer
To determine
State the reason for the formation of wedge-shaped film in the oil.
Explanation of Solution
Lubrication between two sliding surfaces is due to an oil film that segregates the surfaces and bears the load.
When the oil is placed over a plain surface and a large block is moved across the plain surface, the block will slide easily on the surface compared to moving across a dry surface. The reason is due to the formation of a wedge-shaped oil film between the surface and the sliding block. The wedge-shaped film in the oil makes the block to move easily on the plain surface.
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Chapter 23 Solutions
Automotive Technology: Principles, Diagnosis, and Service (5th Edition)
Ch. 23 - What causes a wedge-shaped film to form in the...Ch. 23 - What is hydrodynamic lubrication?Ch. 23 - Explain why internal engine leakage affects oil...Ch. 23 - Describe how the oil flows from the oil pump,...Ch. 23 - What is the purpose of a windage tray?Ch. 23 - Normal oil pump pressure in an engine is...Ch. 23 - Two technicians are discussing oil pumps....Ch. 23 - A typical oil pump can pump how many gallons per...Ch. 23 - In typical engine lubrication systems, what...Ch. 23 - Hydrodynamic lubrication created by the wedging...
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