Title: Internal combustion engine fuel injection system

Abstract: A fuel injection system is disclosed for an internal combustion engine having at least one cylinder and a piston operating therein to define with the cylinder head a combustion chamber wherein air is compressed while the piston is moving to one end of its stroke. The system has pressurizing means adjacent the combustion chamber which suddenly further compresses in a compression chamber a small part of the air precompressed in the combustion chamber to a substantially higher pressure and temperature than the peak pressure and temperature of air in the combustion chamber. Fuel feed means supplies fuel to the compression chamber, and nozzle means is operative to substantially confine the air in the compression chamber during its compression and to discharge the compressed air-fuel mixture as a jet into the combustion chamber.

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Inventors: Pompei, Francesco (Wayland, MA, US)

Application Number: 681777
Filing Date: 1976-04-30
Publication_date: 1979-02-27
Assignee: Foster-Miller Associates, Inc. (Waltham, MA)
Primary Class(es): 123/537 123/306, 123/508, 123/532, 239/91, 417/469, 417/492, 417/499
Other Classes:
US Patent Ref:

1208012	Dec, 1916	Riotte	123/139.
1511484	Oct, 1924	Peterson	239/88.
1573248	Feb, 1926	Johnsen	123/139.
1677202	Jul, 1978	Olsen	123/139.
1967101	Jul, 1934	Rassbach et al.	123/139.
1973146	Sep, 1934	Gill	123/139.
2357870	Sep, 1944	Beeh	417/492.
2375906	May, 1945	Falcon	239/88.
2727498	Dec, 1955	Reiners	123/32.
2731917	Jan, 1956	Evans	123/139.
3125078	Mar, 1964	Reiners	123/139.
3146949	Sep, 1964	Reiners	239/92.
3810453	May, 1974	Wolfe	123/139.
3965875	Jun, 1976	Perr	123/139.

Other Refs:
Primary Examiner: Cline, William R.
Assistant Examiner: Spiegel, H. Jay
Attorney: Morse, Altman, Oates & Bello