skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

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
Publication Date:
Research Org.:
Caterpillar Inc., Deerfield, IL (United States)
OSTI Identifier:
874102
Patent Number(s):
US 6311668
Application Number:
09/503659
Assignee:
Caterpillar Inc. (Peoria, IL)
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. 2001. "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 = {},
url = {https://www.osti.gov/biblio/874102}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {11}
}