Hydraulically actuated gas exchange valve assembly and engine using same
Abstract
An engine comprises a housing that defines a hollow piston cavity that is separated from a gas passage by a valve seat. The housing further defines a biasing hydraulic cavity and a control hydraulic cavity. A gas valve member is also included in the engine and is movable relative to the valve seat between an open position at which the hollow piston cavity is open to the gas passage and a closed position in which the hollow piston cavity is blocked from the gas passage. The gas valve member includes a ring mounted on a valve piece and a retainer positioned between the ring and the valve piece. A closing hydraulic surface is included on the gas valve member and is exposed to liquid pressure in the biasing hydraulic cavity.
- Inventors:
-
- Peoria, IL
- Hinsdale, IL
- Issue Date:
- Research Org.:
- Caterpillar Inc., Deerfield, IL (United States)
- OSTI Identifier:
- 874696
- Patent Number(s):
- 6443121
- Application Number:
- 09/606286
- Assignee:
- Caterpillar Inc. (Peoria, IL)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02M - SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- DOE Contract Number:
- FC05-97OR22605
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- hydraulically; actuated; gas; exchange; valve; assembly; engine; housing; defines; hollow; piston; cavity; separated; passage; seat; biasing; hydraulic; control; included; movable; position; closed; blocked; mounted; piece; retainer; positioned; closing; surface; exposed; liquid; pressure; valve seat; /123/
Citation Formats
Carroll, Thomas S, and Taylor, Gregory O. Hydraulically actuated gas exchange valve assembly and engine using same. United States: N. p., 2002.
Web.
Carroll, Thomas S, & Taylor, Gregory O. Hydraulically actuated gas exchange valve assembly and engine using same. United States.
Carroll, Thomas S, and Taylor, Gregory O. Tue .
"Hydraulically actuated gas exchange valve assembly and engine using same". United States. https://www.osti.gov/servlets/purl/874696.
@article{osti_874696,
title = {Hydraulically actuated gas exchange valve assembly and engine using same},
author = {Carroll, Thomas S and Taylor, Gregory O},
abstractNote = {An engine comprises a housing that defines a hollow piston cavity that is separated from a gas passage by a valve seat. The housing further defines a biasing hydraulic cavity and a control hydraulic cavity. A gas valve member is also included in the engine and is movable relative to the valve seat between an open position at which the hollow piston cavity is open to the gas passage and a closed position in which the hollow piston cavity is blocked from the gas passage. The gas valve member includes a ring mounted on a valve piece and a retainer positioned between the ring and the valve piece. A closing hydraulic surface is included on the gas valve member and is exposed to liquid pressure in the biasing hydraulic cavity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 03 00:00:00 EDT 2002},
month = {Tue Sep 03 00:00:00 EDT 2002}
}
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