Cylinder head mounting arrangement for a diesel injection pump

Details Cylinder head mounting arrangement for a diesel injection pump Cylinder head mounting arrangement for a diesel injection pump

1976-03-29

1977-11-29

Croyle, Carlton R.

Pumps

Expansible chamber type

Pumping member position controlled port

F04B 704

Patent

active

040603504

ABSTRACT:
An improved, pressure-sealed mounting arrangement for a cylinder head of a diesel-type fuel injection assembly is described. The working cylinder of the pump assembly has an upward axial projection which tightly receives the lower end of a hollow cylinder head along an extended interface to define a pressure-sealed zone, such zone being disposed above the position of maximum upward travel of the cylinder piston. The head exhibits a lateral projection intermediate its ends for contacting the upper surface of the axial extension of the cylinder. Both the cylinder head and the cylinder extension are tightly secured to the upper portion of the pump body that surrounds the cylinder with the use of a threaded arrangement that tightly secures the lateral extension on the cylinder head to the axial extension on the cylinder and which also secures one of such members to the upper portion of the pump body. An annular recess formed in the pressure-sealing zone communicates with an axial passage in the cylinder wall, whose lower end in turn communicates with a passage extending between the inner and outer peripheries of the cylinder wall.

REFERENCES:
patent: 2438190 (1948-03-01), Sheppard
patent: 2877711 (1959-03-01), Evans
patent: 2930323 (1960-03-01), Kessner
patent: 2937637 (1960-05-01), Heiser
patent: 3885895 (1975-05-01), Staudt

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