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Title: 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:
 [1]
  1. (Metamora, IL)
Issue Date:
Research Org.:
Caterpillar Inc. (Peoria, IL)
OSTI Identifier:
874102
Patent Number(s):
6311668
Application Number:
09/503659
Assignee:
Caterpillar Inc. (Peoria, IL) ORO
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 = {2001},
month = {11}
}

Patent:

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