Small reciprocating pump

Details Small reciprocating pump Small reciprocating pump

1981-09-14

1983-08-02

Look, Edward K.

Pumps

Expansible chamber type

Having additional chamber intake connection from nonpumping...

417571, F04B 3910

Patent

active

043963633

ABSTRACT:
In a small reciprocating pump, an annular space is provided between a cylinder and a cylinder block. The cylinder is bifurcated at its upper end, and has two projecting edges. One of these projecting edges is radially outwardly spaced apart from the other, and greater in length than the other. A cylinder head has a lower surface provided with an annular groove in which the outer projecting edge of the cylinder is engaged. A seal ring is disposed in this annular groove, and another seal ring between the projecting edges of the cylinder to maintain the cylinder in gastight contact with the cylinder head. The other seal ring also serves to support a metal plate which forms therein a valve. The cylinder head is provided with an intake passage having an intake valve, and a discharge passage having a discharge valve. The cylinder block is connected to a crank case in a gastight fashion. A crankshaft is supported rotatably in the crank case for reciprocating a piston in the cylinder.

REFERENCES:
patent: 756529 (1906-04-01), Rose
patent: 3131855 (1964-05-01), Kocher
patent: 3431865 (1969-03-01), Cook et al.
patent: 3456874 (1969-07-01), Graper
patent: 4360319 (1982-11-01), Paget

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