Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1988-09-09
1990-07-03
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
Fuel injection system
123467, 2395339, F02M 3900
Patent
active
049381938
ABSTRACT:
A fuel injection nozzle 10 having a nozzle body 12 to which is attached a banjo-type inlet stud 16, by means of heat shrinking. After the shrink fit attachment, a blind passage 20, 22 in the delivery tube portion 134 of the inlet is drilled through to penetrate the nozzle body and form a leak-tight fuel delivery path. A locating plate 106 is supported by a bore 96 in the cylinder head 80 adjacent the nozzle and orients the nozzle into a preselected orientation. In one nozzle embodiment 70, the tip 76 is sealed against the cylinder head socket 84 by a frustoconical copper annular seal member 82 that is preferentially loaded toward the inner seal diameter. The nozzle cap 14 forms a spring chamber in which a spring subassembly 42 including upper and lower spring seats 48, 46, a spring 44, and stem 186 and pedestal 84 piloting the spring, cooperate to permit independent setting of the valve lift off stop limit F and the spring preload B. The components internal to the nozzle body are all insertable serially, without the need for rotation or other complex fabrication steps. A nozzle removal tool 250 adapted for use with the nozzle includes a yoke member 258 for engaging a shoulder 268 on the nozzle and a jackscrew 254 and jacking bolt 252 arrangement concentric with each other, for lifting the nozzle from its socket in the cylinder head.
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Technical Drawing, "AVL Split Injection Device Installed in Nozzle Holder".
Technical Drawing, "2-Feder-Halter fur Indirekte Einspritzung" (Bosch).
Technical Drawing, "2-Feder-Halter fur direkte Einspritzung" (Bosch).
Technical Drawing, "AVL Two Stage Injection Injector Holder".
Sketch (Hand Drawn) "KIKI Diesel Nozzle".
One Page of Technical Drawings Labelled "FIG. 13 Two-Spring Injector M.A.N. Development for First Tests and" FIG. 14, Robert Bosch Injector with Central Plunger.
Chace David A.
Janik Leon P.
Raufeisen Robert
Miller Carl Stuart
Stanadyne Automotive Corp.
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