Cleaning apparatus and method

An apparatus for cleaning, flushing, and filling a liquid cooling system of an internal combustion engine, said cooling system including an engine block and radiator for accommodating cooling liquid, and means for carrying liquid connected to the block comprising:

• a control valve having valving means movable to an off position, a fill position, an agitate position and a flush position, first means for carrying liquid under pressure to the control valve, second means for carrying liquid from the control valve to the means for carrying liquid connected to the block, said liquid flowing from the first means to the second means when the valving means is in the flush position, pump means connected to the second means for moving liquid in the second means and liquid cooling system, said pump means including a cylinder and a pump piston located in the cylinder operable to move liquid in the cooling system when the valving means is in the agitate position, a reservoir having a chamber for holding a reservoir liquid, outlet means connecting the reservoir to the control valve, said pump means operable to pump reservoir liquid from the reservoir to the second means when the valving means is in the fill position, drive means connected to the pump piston to reciprocate the piston in the cylinder, said drive means being operable in response to air under pressure, said second means including a manifold and an input hose connected to the manifold and means for carrying liquid connected to the block, means for carrying liquid from said pump means to the manifold, a one-way valve associated with the manifold for controlling the flow of liquid through the manifold, and a passage means by-passing the one-way valve whereby the pump means operates to sequentially move the liquid in forward and reverse directions in the cooling system.

An apparatus for cleaning, flushing, and filling a liquid accommodating system of an apparatus and means for carrying liquid connected to the apparatus comprising:

• a housing, a pump assembly mounted on the housing, said pump assembly having a cylinder and a pump piston located within the cylinder, drive means connected to the pump piston to reciprocate the pump piston in the cylinder, said drive means being operated in response to air under pressure;
• a manifold having a first chamber, a second chamber, and a one-way valve allowing liquid to flow in a forward direction from the first chamber to the second chamber, first means connected to the pump assembly and manifold for carrying liquid from the pump assembly to the first chamber of the manifold, second means connected to the manifold for receiving liquid from the second chamber and adapted to be connected to the means for carrying liquid connected to the apparatus, a control valve connected to the manifold in liquid communication with the first chamber, said control valve having valving means movable to a flush position, an agitate position, a fill position, and an off position, means for carrying water under pressure to the control valve, said valving means when in the flush position being operable to direct said water under pressure to the manifold thereby providing water under pressure to the liquid accommodating system, liquid by-pass means connected to the control valve and manifold in liquid communication with the second chamber, said valving means when in the agitate position connecting the by-pass means to the first chamber of the manifold whereby reverse flow of liquid moves from the second chamber through by-pass means, control valve, and first chamber to the first means so that the reciprocating pump piston causes sequential movement of the liquid in forward and reverse directions in the liquid accommodating system.

An apparatus for cleaning, flushing, and filling a liquid accommodating system of an apparatus and means for carrying liquid connected to the apparatus comprising:

• a pump means having reciprocating means for pumping liquid, drive means for operating the pump means, a manifold having a first chamber and a second chamber, and a one-way valve allowing liquid to flow in a forward direction from the first chamber to the second chamber, first means connected to the pump means and manifold for carrying liquid from the pump means to the first chamber of the manifold, second means connected to the manifold for receiving liquid from the second chamber and adapted to be connected to the means for carrying liquid connected to the apparatus, a control valve connected to the manifold in liquid communication with the first chamber, said control valve having valving means movable to a flush position, agitate position, a fill position, and an off position, means for carrying water under pressure to the control valve, said valving means when in the flush position being operable to direct said water under pressure to the manifold thereby providing water under pressure to the liquid accommodating system, liquid by-pass means connected to the control valve and manifold in liquid communication with the second chamber, said valving means when in the agitate position connecting the by-pass means to the first chamber of the manifold whereby reverse flow of liquid moves from the second chamber through by-pass means, control valve, and the first chamber to the first means so that the pump means causes sequential movement of the liquid in forward and reverse directions in the liquid accommodating system.