Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1987-06-15
1988-12-13
Moon, Charlie T.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29157T, 291571R, 29445, 29447, 29525, 2395333, B21K 120, B23P 1300
Patent
active
047900555
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 lead-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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Chace David A.
Janik Leon P.
Raufeisen Robert
Moon Charlie T.
Stanadyne Inc.
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