Internal-combustion engines – Combustion chamber means having fuel injection only – Using multiple injectors or injections
Patent
1991-05-31
1992-12-01
Argenbright, Tony M.
Internal-combustion engines
Combustion chamber means having fuel injection only
Using multiple injectors or injections
F02M 4504
Patent
active
051672103
ABSTRACT:
A fuel injection device for an internal combustion engine, in particular a diesel engine, the device is of the type comprising two spray heads, one spray head serving for pre-injection of fuel while the other serves for main injection of fuel, said spray heads being situated close to each other in the vicinity of the middle of the cylinder head. The pre-injection spray head includes a series of holes whose axes lie on a frist cone and the main injection spray head inlcudes a series of holes whose axes lie on a second cone, there being twice as many holes in the main spray head as in the pre-injection spray head, the relative positions of the cones, the angle of each of the cones, and the directions of the axes of the holes around the cones being selected in such a manner that the distances between each pre-injection jet and the two adjacent main injection jets are at a minimum and are substantially equal in a zone which is situated substantially halfway along the main injection jets.
REFERENCES:
patent: 4368702 (1983-01-01), Finsterwalder et al.
patent: 4399786 (1983-08-01), Holmer
patent: 4524737 (1985-06-01), Hofman
patent: 4549511 (1985-10-01), Grieshaber et al.
patent: 4612989 (1986-09-01), Steiger et al.
Patent Abstracts of Japan, vol. 9, No. 313 (M-437)(2036), Dec. 10, 1985, & JP-A-60 147525 (Mitsubishi Jukogyo) Aug. 3, 1985.
Argenbright Tony M.
S.E.M.T. Pielstick
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