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A single cylinder pump for circulating cleaning fluids through a radiator or like cooling system applies positive and negative pressure to the fluid to create a pulsating agitation of the fluid through the radiator through the use of a thin washer-like plate which is reciprocatively driven within th

A single cylinder pump for circulating cleaning fluids through a radiator or like cooling system applies positive and negative pressure to the fluid to create a pulsating agitation of the fluid through the radiator through the use of a thin washer-like plate which is reciprocatively driven within the cylinder. The washer-like plate is slightly smaller than the cylinder and is separated from the inside of the cylinder by a small annular clearance thereby eliminating the need for lubrication and permitting the pump to be self-priming and to release gases generated by the agitation of the fluids.

대표청구항 ▼

Apparatus for circulating cleaning fluids from a reservoir thereof through a cooling system submerged in said reservoir comprising: (a) a cylinder having an open top and a closed bottom mounted within said reservoir with said open top submerged within said cleaning fluid, with said cylinder having a

Apparatus for circulating cleaning fluids from a reservoir thereof through a cooling system submerged in said reservoir comprising: (a) a cylinder having an open top and a closed bottom mounted within said reservoir with said open top submerged within said cleaning fluid, with said cylinder having an intake port operable connected to said cooling system, and a discharge port communicating with said reservoir; (b) valve means for opening said discharge port responsive to an increase in pressure within said cylinder and closing said discharge port responsive to decrease in pressure within said cylinder; (c) a thin washer-like member mounted within said cylinder for reciprocating motion therewithin, with said washer-like member having a predetermined annular clearance from the interior of said cylinder; (d) drive means mounted externally of said reservoir for imparting reciprocatory motion to said washer-like member within said cylinder; and (e) means for covering said reservoir including an elongated sleeve-like splash guard extending concentrically above said cylinder and adapted to retain heat and fluids within said reservoir.