Title: Internal combustion engine system

Abstract: Hemispherical combustion chambers of a cross flow type cylinder head, having symmetrically disposed and synchronously sparked plugs are fed a near stoichiometric air fuel mixture containing up to 40% EGR gas which after combustion is exhausted through individual ports, mixed with secondary air supplied by a simple reed valve and oxidized in a catalytic converter.

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Inventors: Kuroda, Hiroshi (Tokyo, JP)
Nakajima, Yasuo (Yokosuka, JP)
Hayashi, Yoshimasa (Yokohama, JP)

Application Number: 793492
Filing Date: 1977-05-04
Publication_date: 1979-12-11
Assignee: Nissan Motor Company, Limited (Yokohama, JP)
Primary Class(es): 60/274 60/278, 60/293, 123/184.39, 123/193.5
Other Classes:
US Patent Ref:

2108740	Feb, 1938	Belford	123/52.
2380066	Jul, 1945	Pescara	123/52.
2469448	May, 1949	Barber	123/30.
2576819	Nov, 1951	Angle	123/193.
3662541	May, 1972	Sawada	60/293.
3791144	Feb, 1974	Lang	60/278.
4022019	May, 1977	Garcea	60/282.
4069666	Jan, 1978	Nakamura	60/305.

Other Refs: 394800

Jul, 1933	GB

Primary Examiner: Hart, Douglas
Assistant Examiner:
Attorney: