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Valve operating assembly and method of manufacturing

a valve and operating assembly technology, applied in valve arrangements, machines/engines, mechanical equipment, etc., can solve the problems of increased labor, decreased production, inefficient casting and machining,

Inactive Publication Date: 2007-10-11
MAC LEAN FOGG CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, casting and machining is inefficient, resulting in increased labor and decreased production.

Method used

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  • Valve operating assembly and method of manufacturing
  • Valve operating assembly and method of manufacturing
  • Valve operating assembly and method of manufacturing

Examples

Experimental program
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Embodiment Construction

[0062] Turning now to the drawings, FIG. 1, 2, and 3 show a preferred embodiment of a leakdown plunger 10. The leakdown plunger 10 is composed of a metal, preferably aluminum. According to one aspect of the present invention, the metal is copper. According to another aspect of the present invention, the metal is iron.

[0063] Those skilled in the art will appreciate that the metal is an alloy. According to one aspect of the present invention, the metal includes ferrous and non-ferrous materials. According to another aspect of the present invention, the metal is a steel. Those skilled in the art will appreciate that steel is in a plurality of formulations and the present invention is intended to encompass all of them. According to one embodiment of the present invention the steel is a low carbon steel. In another embodiment of the present invention, the steel is a medium carbon steel. According to yet another embodiment of the present invention, the steel is a high carbon steel.

[0064...

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PUM

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Abstract

The present invention relates to a leakdown plunger, comprising a first plunger opening, a second plunger opening, and an outer plunger surface that is provided with an axis and encloses an inner plunger surface, the first plunger opening is provided with a first annular plunger surface shaped to accommodate a valve insert, the second plunger opening is configured to cooperate with a socket body, the outer plunger surface includes a cylindrical plunger surface and cooperates with an engine workpiece, and the inner plunger surface includes an inner cylindrical plunger surface.

Description

[0001] This application is a continuation of prior application Ser. No. 11 / 361,273, filed Feb. 23, 2006, which is a continuation of prior application Ser. No. 11 / 200,287, filed Aug. 9, 2005, now U.S. Pat. No. 7,069,891, which is a continuation of prior application Ser. No. 11 / 119,450, filed Apr. 29, 2005, which is a continuation prior application Ser. No. 10 / 992,531, filed Nov. 18, 2004, now U.S. Pat. No. 6,964,251, which is a continuation of prior application Ser. No. 10 / 274,519, filed Oct. 18, 2002, now U.S. Pat. No. 6,871,622. The disclosures of application Ser. No. 11 / 200,286, application Ser. No. 11 / 119,450, application Ser. No. 10 / 992,531, now U.S. Pat. No. 6,964,251, and application Ser. No. 10 / 274,519, now U.S. Pat. No. 6,871,622 are hereby incorporated herein by reference.FIELD OF THE INVENTION [0002] This invention relates to bodies for leakdown plungers, and particularly to leakdown plungers used in combustion engines. BACKGROUND OF THE INVENTION [0003] Leakdown plungers ...

Claims

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Application Information

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IPC IPC(8): F01L1/14
CPCF01L1/146F01L1/24F01L2105/02F01L2101/00F01L2103/00F01L2001/256F01L2301/00F01L2303/00F01L2305/02
Inventor MANDAL, DHRUVAWILLIAMS, CARROLL
Owner MAC LEAN FOGG CO