Stratified charge injection for gas-fueled rotary engines

Details Stratified charge injection for gas-fueled rotary engines Stratified charge injection for gas-fueled rotary engines

1990-04-27

1992-03-10

Smith, Leonard E.

Internal-combustion engines

Rotary

With fuel injection means

123219, F02B 5312

Patent

active

050942042

ABSTRACT:
A gaseous fuel injector injects fuel directly into a working chamber of a rotary combustion engine after the end of the air intake stroke and early during the compression stroke for providing fuel-charge stratification within the working chamber as the rotor approaches and reaches compression top dead center. This results in an increase in power output and brake thermal efficiency due to reduced displacement of the intake air, reduced exhaust emissions levels due to reduced unburned hydrocarbons along the sides and trailing edge of the rotor, and reduced tendancy for combustion knock due to a non-combustible mixture in the end gas.

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patent: 3174466 (1965-03-01), Scherenberg
patent: 3196847 (1965-07-01), Kimberley et al.
patent: 3589344 (1971-06-01), Steinke
patent: 3867910 (1975-02-01), Galonska
patent: 3886907 (1975-06-01), Loyd, Jr.
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patent: 4019471 (1977-04-01), Shimoji et al.
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patent: 4889091 (1989-12-01), Berkowitz et al.
Society of Automotive Engineers, "An Update of the Direct Injection Stratified Charge Rotary Combustion Engine", Charles Jones et al., IAE Congress, Feb. 28-Mar. 4, 1977.
Society of Automotive Engineers, "Development of a Natural Gas Stratified Charge Rotary Engine", R. Sierens et al., IAE Congress, Feb. 25-Mar. 1, 1985.

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