Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1989-05-10
1991-07-23
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
Fuel injection system
123468, 285354, 285386, F02M 5502
Patent
active
050334352
ABSTRACT:
A fluid conduit system especially for high pressure fuel connections in engines comprises an elongate tube having a fitting asssembly mounted at each end thereof. Each fitting assembly is identical to the other and includes a stepped outer diameter sleeve member having a larger diameter distal portion and a narrower proximal portion. A nut is slidably received about the tube and has a threaded bore therein which is of a diameter greater than the diameter of the larger diameter portion of the sleeve member and a proximal flange surrounding a reduced diameter bore having a diameter substantially greater than the diameter of the narrower portion of the sleeve member but less than the diameter of the larger diameter portion of the sleeve member. The nut further includes an area of undercut along an inner surface thereof adjacent the proximal flange disposed to receive therein the edge of the larger diameter portion of the sleeve member when the nut is radially offset from a centered position about the tube up to a position where the narrower portion of the sleeve member abuts against the flange of the nut.
REFERENCES:
patent: 3783842 (1974-01-01), Kuhn
patent: 4073515 (1978-02-01), Perera
patent: 4384557 (1983-05-01), Johnson
patent: 4445713 (1984-05-01), Bruning
patent: 4665876 (1987-05-01), Hashimoto
patent: 4705306 (1988-11-01), Guido
patent: 4877270 (1989-10-01), Phillips
patent: 4893601 (1990-01-01), Sugao
"1988 SAE Handbook", vol. 2, pp. 19.162-19.176, Society of Automotive Engineers, 1988.
Lingl Eugene
Mackert Robert
Ostarello Joseph V.
AuBuchon F. David
Miller Carl Stuart
Navistar International Transportation Corp.
Sullivan Dennis K.
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