Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1993-11-24
1994-09-13
Cross, E. Rollins
Internal-combustion engines
Charge forming device
Fuel injection system
F02M 6114
Patent
active
053459130
ABSTRACT:
The design and construction of past injector assemblies having an injector sleeve manufactured from a deformable material used the deforming characteristics of the injector sleeve to form a combustion seal separating a combustion chamber from a cooling liquid jacket. Additionally, the injector sleeve was generally used in conjunction with a resilient means to form the coolant seal between the cooling liquid jacket and a fuel injector. Deforming the injector sleeve to produce the combustion seal made it difficult to remove during inspections and maintenance schedules and virtually impossible to reuse. The present invention overcomes these problems by providing an injector sleeve manufactured from a relatively non-deformable material which is used in conjunction with a plurality of seal rings to establish only a coolant seal between the cooling liquid jacket and a fuel injector. An injector cone has a tapered lower portion which is seated in a frusto-conical portion disposed within a cylinder head to establish an independent combustion seal.
REFERENCES:
patent: 2777431 (1957-01-01), Meurer
patent: 3038456 (1962-06-01), Dreisin
patent: 3125078 (1964-03-01), Reiners
patent: 3334617 (1967-08-01), Palkowsky
patent: 4066213 (1978-01-01), Stampe
patent: 4141329 (1979-02-01), Pompei
patent: 4419977 (1983-12-01), Hillebrand
patent: 5024193 (1991-06-01), Graze, Jr.
Belshaw Barry L.
Berry James K.
Marz Michael A.
Tisch John E.
Caterpillar Inc.
Charlton Diana L.
Cross E. Rollins
Moulis Thomas N.
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