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Engine assembly including secondary oil pump and pump mounting structure

A technology of engines and components, which is applied in the directions of engine components, machines/engines, engine lubrication, etc., and can solve problems such as the difficulty of packaging sub-oil pumps

Inactive Publication Date: 2013-05-22
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the plumbing required to transport the oil to and from the secondary oil pump, it can be difficult to package the secondary oil pump in the engine assembly

Method used

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  • Engine assembly including secondary oil pump and pump mounting structure
  • Engine assembly including secondary oil pump and pump mounting structure
  • Engine assembly including secondary oil pump and pump mounting structure

Examples

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Embodiment Construction

[0050] Examples of the present invention will now be described more fully with reference to the accompanying drawings. The following description is merely exemplary in nature and is not intended to limit the invention, application or uses.

[0051] now refer to figure 1 with figure 2 , schematically illustrates an exemplary engine assembly 10 . Engine assembly 10 may include cylinder head 12 , intake camshaft 14 and exhaust camshaft 15 , hydraulically actuated engine component assembly 18 , cam bearing cap 20 , primary oil pump 21 , and secondary oil pump 22 . Hydraulically actuated engine component assembly 18 may include intake cam phaser 24 and exhaust cam phaser 26 and / or intake valve lift assembly 28 and exhaust valve lift 30 .

[0052] By way of non-limiting example, intake cam phaser 24 and exhaust cam phaser 26 may each comprise a hydraulically actuated cam phaser having a rotor and a stator. The stator may be rotationally driven by the engine crankshaft. The rot...

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PUM

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Abstract

A cam bearing cap may include a first bearing cap region, a pump mounting region, an oil inlet, and an oil outlet. The first bearing cap region may extend over and secure a first camshaft to an engine assembly. The pump mounting region may extend from the first bearing cap region and may have a secondary oil pump mounted thereto. The oil inlet may extend through the pump mounting region and may provide communication between the secondary oil pump and an oil supply. The oil outlet may extend through the pump mounting region and may provide communication between the secondary oil pump and a hydraulically actuated engine component.

Description

technical field [0001] The present invention relates to internal combustion engines, and more particularly, to secondary oil pumps and pump mounting structures for internal combustion engines. Background technique [0002] This section provides background information related to the present disclosure which is not necessarily prior art. [0003] Engine components may include hydraulically actuated components, such as cam phasers, that are operated by application of pressurized fluid, such as oil. During some operating conditions, the oil pressure provided by the main oil pump may be lower than that required for the desired response of the hydraulically actuated components. Accordingly, a secondary oil pump may be incorporated into the engine package. However, packaging the secondary oil pump in the engine assembly can be difficult due to the plumbing required to transport the oil to and from the secondary oil pump. Contents of the invention [0004] An engine assembly ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L9/02F01L1/047F02F1/24F01M9/10
CPCF01L1/053F01M9/102F01L2001/0476
Inventor R·J·加伦D·R·斯塔利
Owner GM GLOBAL TECH OPERATIONS LLC