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Internal combustion engine and method of controlling operation of an oil circuit of an internal combustion engine

An internal combustion engine and engine technology, applied in engine control, machine/engine, control of lubricant pressure, etc., can solve problems such as engine wear and catastrophic failure

Active Publication Date: 2018-12-28
CUMMINS INTPROP INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, mechanical oil pumps may provide insufficient oil pressure to lubricate and cool the engine, causing wear and potentially catastrophic failure of the engine

Method used

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  • Internal combustion engine and method of controlling operation of an oil circuit of an internal combustion engine
  • Internal combustion engine and method of controlling operation of an oil circuit of an internal combustion engine

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Embodiment Construction

[0009] refer to figure 1 , a portion of a conventional internal combustion engine is shown schematically and generally indicated by the reference numeral 10 . The engine 10 includes: an engine body 12 , an oil circuit 14 and a control system 16 . As will be described below, engine 10 includes an improved system for providing oil pressure to lubricate the components of engine 10 , especially if the conventional mechanical oil pump of engine 10 is unable to provide sufficient lubricating oil to engine 10 . One such situation may be a situation where a conventional oil pump provides a reduced amount of lubricating oil during engine 10 shutdown as the engine 10 decelerates to a stop. Even though the amount of oil from the conventional oil pump is reduced, the need for adequate lubrication continues because the conventional oil pump cannot provide sufficient lubricating oil to the engine 10 , resulting in a situation where engine 10 may be damaged. Oil circuit 14 provides adequat...

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PUM

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Abstract

A system and method of providing supplementary oil flow to an oil circuit of an internal combustion engine is described. The primary oil supply is from a mechanical oil pump. The supplementary oil supply is provided using a control system, one or more sensors, and an electrical oil pump. The system is beneficial in circumstances where the mechanical oil pump provides insufficient oil flow, including during engine shutdown.

Description

technical field [0001] The present disclosure relates to an oil pump for an internal combustion engine, and to increasing oil provided by a mechanical oil pump by selectively engaging an electrically driven oil pump when commanded by a control system. Background technique [0002] Internal combustion engines require oil for lubrication and cooling. The internal combustion engine has a mechanical oil pump to provide the above mentioned oil. Under certain conditions, mechanical oil pumps may provide insufficient oil pressure for lubricating and cooling the engine, resulting in wear and potentially catastrophic failure of the engine. Accordingly, there is a reduced chance of engine failure by implementing systems and methods for providing lubricating and cooling oil to an engine during periods when a mechanical oil pump provides insufficient oil pressure. Contents of the invention [0003] The present disclosure provides an internal combustion engine including an oil circui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01M1/02F01M1/16F01M1/18F02D45/00
Inventor P·D·弗里K·饶M·F·马特恩
Owner CUMMINS INTPROP INC
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