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Title: Internal combustion engine with rotary valve assembly having variable intake valve timing

Abstract

An internal combustion engine has rotary valves associated with movable shutters operable to vary the closing of intake air/fuel port sections to obtain peak volumetric efficiency over the entire range of speed of the engine. The shutters are moved automatically by a control mechanism that is responsive to the RPM of the engine. A foot-operated lever associated with the control mechanism is also used to move the shutters between their open and closed positions.

Inventors:
 [1];  [2]
  1. Eden Prairie, MN
  2. Shorewood, MN
Issue Date:
Research Org.:
Hansen Engine Corporation (Minnetonka, MN)
OSTI Identifier:
870199
Patent Number(s):
5474036
Assignee:
Hansen Engine Corporation (Minnetonka, MN)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01L - CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
DOE Contract Number:  
FG01-89CE90049
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
internal; combustion; engine; rotary; valve; assembly; variable; intake; timing; valves; associated; movable; shutters; operable; vary; closing; air; fuel; sections; obtain; peak; volumetric; efficiency; entire; range; speed; moved; automatically; control; mechanism; responsive; rpm; foot-operated; lever; move; closed; positions; rotary valves; internal combustion; combustion engine; closed position; valve assembly; closed positions; control mechanism; intake air; entire range; valves associated; rotary valve; /123/

Citation Formats

Hansen, Craig N, and Cross, Paul C. Internal combustion engine with rotary valve assembly having variable intake valve timing. United States: N. p., 1995. Web.
Hansen, Craig N, & Cross, Paul C. Internal combustion engine with rotary valve assembly having variable intake valve timing. United States.
Hansen, Craig N, and Cross, Paul C. Sun . "Internal combustion engine with rotary valve assembly having variable intake valve timing". United States. https://www.osti.gov/servlets/purl/870199.
@article{osti_870199,
title = {Internal combustion engine with rotary valve assembly having variable intake valve timing},
author = {Hansen, Craig N and Cross, Paul C},
abstractNote = {An internal combustion engine has rotary valves associated with movable shutters operable to vary the closing of intake air/fuel port sections to obtain peak volumetric efficiency over the entire range of speed of the engine. The shutters are moved automatically by a control mechanism that is responsive to the RPM of the engine. A foot-operated lever associated with the control mechanism is also used to move the shutters between their open and closed positions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

Patent:

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Works referenced in this record:

Perspectives on Applications of Variable Valve Timing
conference, February 1991


Controlling Engine Load by Means of Early Intake-Valve Closing
conference, February 1982


Development of a Variable Valve Timed Engine to Eliminate the Pumping Losses Associated with Throttled Operation
conference, March 1986


A Survey of Variable-Valve-Actuation Technology
conference, August 1989

  • Ahmad, T.; Theobald, M. A.
  • 1989 Conference and Exposition on Future Transportation Technology, SAE Technical Paper Series
  • https://doi.org/10.4271/891674

A Review of Variable Valve Timing Benefits and Modes of Operation
conference, August 1989

  • Dresner, Thomas; Barkan, Philip
  • 1989 Conference and Exposition on Future Transportation Technology, SAE Technical Paper Series
  • https://doi.org/10.4271/891676