Monovalve with integrated fuel injector and port control valve, and engine using same
Abstract
An engine includes an engine casing that defines a hollow piston cavity separated from an exhaust passage and an intake passage by a valve seat. A gas exchange valve member is positioned adjacent the valve seat and is moveable between an open position and a closed position. The gas exchange valve member also defines an opening that opens into the hollow piston cavity. A needle valve member is positioned in the gas exchange valve member adjacent a nozzle outlet and is moveable between an inject position and a blocked position. A port control valve member, which has a hydraulic surface, is mounted around the gas exchange valve member and moveable between an intake position and an exhaust position. A pilot valve is moveable between a first position at which the port control hydraulic surface is exposed to a source of high pressure fluid, and a second position at which the port control hydraulic surface is exposed to a source of low pressure fluid.
- Inventors:
-
- Metamora, IL
- Issue Date:
- Research Org.:
- Caterpillar Inc., Deerfield, IL (United States)
- OSTI Identifier:
- 874102
- Patent Number(s):
- 6311668
- Application Number:
- 09/503659
- Assignee:
- Caterpillar Inc. (Peoria, IL)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01L - CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
- DOE Contract Number:
- FC05-97OR22605
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- monovalve; integrated; fuel; injector; control; valve; engine; casing; defines; hollow; piston; cavity; separated; exhaust; passage; intake; seat; gas; exchange; positioned; adjacent; moveable; position; closed; needle; nozzle; outlet; inject; blocked; hydraulic; surface; mounted; pilot; exposed; source; pressure; fluid; fuel injector; /123/
Citation Formats
Milam, David M. Monovalve with integrated fuel injector and port control valve, and engine using same. United States: N. p., 2001.
Web.
Milam, David M. Monovalve with integrated fuel injector and port control valve, and engine using same. United States.
Milam, David M. Tue .
"Monovalve with integrated fuel injector and port control valve, and engine using same". United States. https://www.osti.gov/servlets/purl/874102.
@article{osti_874102,
title = {Monovalve with integrated fuel injector and port control valve, and engine using same},
author = {Milam, David M},
abstractNote = {An engine includes an engine casing that defines a hollow piston cavity separated from an exhaust passage and an intake passage by a valve seat. A gas exchange valve member is positioned adjacent the valve seat and is moveable between an open position and a closed position. The gas exchange valve member also defines an opening that opens into the hollow piston cavity. A needle valve member is positioned in the gas exchange valve member adjacent a nozzle outlet and is moveable between an inject position and a blocked position. A port control valve member, which has a hydraulic surface, is mounted around the gas exchange valve member and moveable between an intake position and an exhaust position. A pilot valve is moveable between a first position at which the port control hydraulic surface is exposed to a source of high pressure fluid, and a second position at which the port control hydraulic surface is exposed to a source of low pressure fluid.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 06 00:00:00 EST 2001},
month = {Tue Nov 06 00:00:00 EST 2001}
}