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Title: Gas engine cylinder head, and a method of retrofitting the head with a precombustion chamber unit

Patent ·
OSTI ID:6329784

A gas engine cylinder head is described, comprising: a cylinder head body; wherein the body has first, aligned, spark plug-receiving apertures formed therein; the body also has second, aligned, precombustion chamber unit-receiving apertures formed therein; a spark plug set in the first apertures; and a precombustion chamber unit set in the second apertures; wherein one of the second apertures is formed in an outermost portion of the body and another of the second apertures is formed in an inner portion of the body; the another aperture has a first diameter portion and a second diameter portion, and an annular land obtains between the first and second diameter portions; the unit has an intermediate portion which is set upon the land, and cooperates with the first diameter portion of the another aperture to form an annular void there between in which to accommodate fluid flow; and further including a fluid seal interposed between the intermediate portion of the unit and the land; a sleeve in penetration of the one aperture and enclosing the unit there within; wherein the unit has a precombustion chamber formed there within; the sleeve has a plurality of fluid-accommodating ports formed therein; the ports are parallel, and radially aligned, with the chamber; an end of the sleeve is engaged with the intermediate portion of the unit for holding the intermediate portion upon the land; an opposite end of the sleeve opens externally of the body accommodating admittance of ambient atmosphere there into; the unit comprises (a) a spark plug, and (b) a fuel conduit; and the spark plug and the conduit are confined within, and spaced apart from, the sleeve to permit ambient atmosphere entering the sleeve to flow about the spark plug and the conduit.

Assignee:
Dresser-Rand Co., Corning, NY (United States)
Patent Number(s):
US 5230313; A
Application Number:
PPN: US 7-980050
OSTI ID:
6329784
Resource Relation:
Patent File Date: 23 Nov 1992
Country of Publication:
United States
Language:
English