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Cylinder head gasket with one-way coolant flow valve

A technology of coolant flow and cylinder head, applied in the control of coolant flow, cooling of engine, engine components, etc., can solve problems such as damage to engine components

Inactive Publication Date: 2008-02-06
FEDERAL MOGUL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This undesired reverse coolant flow may in some cases cause damage to engine components

Method used

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  • Cylinder head gasket with one-way coolant flow valve
  • Cylinder head gasket with one-way coolant flow valve
  • Cylinder head gasket with one-way coolant flow valve

Examples

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Embodiment Construction

[0022] When referring to the drawings, like numerals designate like or corresponding parts throughout the several views. A liquid cooled internal combustion engine 20 is shown in FIG. 1 including a cylinder block 22 having a plurality of combustion chambers 24 located therein. A piston 26 reciprocates in each combustion chamber 24 in two or four strokes, generating power through the combustion process while generating large amounts of heat as a by-product. A cylinder head 28 is secured to the cylinder block 22 and covers each combustion chamber 24 to seal combustion gases.

[0023] To handle the substantial amount of heat generated during combustion, a cooling system 30 is, in part, integrated with block 22 and cylinder head 28 . The cooling system 30 includes a bypass flow passage 32 for allowing coolant to flow from the cylinder head 28 to the cylinder block 22 under the action of a pump 34 . Excess heat in the coolant is transferred via a heat exchange radiator 36 . A fl...

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PUM

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Abstract

A head gasket ( 48 ) which acts, when clamped between a cylinder head ( 28 ) and a block ( 22 ) in a liquid cooled internal combustion engine ( 20 ), to form a seal around the combustion chambers ( 24 ). A coolant flow path ( 32 ) routes through the engine ( 20 ) and its directed, in part, through the cylinder head ( 28 ) and the block ( 22 ), with a corresponding flow opening ( 54 ) formed in the head gasket ( 48 ) to accommodate flow of liquid coolant in a normal direction. The head gasket ( 48 ) includes a one-way valve ( 58 ) positioned in the flow opening ( 54 ) to allow the flow of coolant in a normal direction but to prevent the flow of liquid coolant through the flow opening ( 54 ) in an abnormal, reverse direction. The one-way valve ( 58 ) includes movable gate ( 66 ) which may be biased against a valve seat ( 64 ) in a normally closed condition. The one-way valve ( 58 ) can be made as a loose piece article of manufacture which is held in flow opening ( 54 ) by self-locking retention clips.

Description

[0001] Cross References to Applications [0002] This application claims priority to US Provisional Patent Application Serial No. 60 / 581,898, filed June 22, 2004. technical field [0003] The present invention relates to a method and apparatus for preventing abnormal coolant flow in an internal combustion engine, and more particularly to an improved cylinder head gasket with an integrated one-way flow control valve. Background technique [0004] The cylinder head gasket, when clamped between the cylinder head and block of an internal combustion engine, forms a seal around the cylinder bore. The cylinder head gasket also provides openings for coolant flow passages and lubricating oil passages between the cylinder head and cylinder block. The prior art includes cylinder head gaskets of various configurations which include mechanically or thermostatically operated valves mounted on the gasket body to control fluid flow between the cylinder head and the cylinder block. This e...

Claims

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Application Information

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IPC IPC(8): F02B77/00F02B17/00F01P7/14
Inventor 丹尼尔·J·维亚拉巴哈旺·特里帕蒂
Owner FEDERAL MOGUL CORP
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