Apparatus for reciprocating liquid in a cooling system of an internal combustion engine
First Claim
1. An apparatus for selectively delivering forward and reverse moving liquid to structures accommodating a liquid comprising:
- a 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, means connected to the pump assembly and manifold for carrying liquid from the pump assembly to the first chamber of the manifold, input means connected to the manifold for receiving liquid from the second chamber and adapted to be connected to the structure accommodating a liquid, a control valve connected to the manifold in liquid communication with the first chamber, by-pass means connected to the control valve and manifold in liquid communication with the second chamber whereby reverse flow of liquid moves from the second chamber through the by-pass means, control valve, and first chamber to the means connected to the pump assembly so that the reciprocating pump piston causes sequential movement of the liquid in forward and reverse directions in the structure accommodating a liquid.
2 Assignments
0 Petitions
Accused Products
Abstract
A portable air-operated apparatus for cleaning, flushing, and filling a liquid cooling system of an internal combustion engine. The cooling system is cleaned by sequentially moving liquid in opposite directions in the cooling system. The apparatus also functions to pressure check the cooling system for leaks, to flush the cooling system of cleaning liquid and foreign matter, and filling the cooling system with new coolant liquid. The apparatus has an air-operated reciprocating piston pump assembly operable to agitate or sequentially move liquid in opposite directions and pump liquid into the cooling system. The pump assembly delivers the liquid to a manifold connected to an input hose coupled to the liquid cooling system. A control valve connected to the manifold is operable to direct an external source of liquid under pressure to the manifold or connect a reservoir carried by the apparatus to the manifold. The manifold has a check valve for controlling one-way forward flow of liquid from the pump to the input hose. A by-pass hose connects the control valve and manifold to by-pass the check valve to allow reverse flow of liquid in the input hose back to the pump assembly so that the pump assembly will effect a sequential forward and reverse flow of liquid in the cooling system. The control valve is operable to connect the reservoir to the manifold so that the cooling system can be filled by the operation of the pump assembly with liquid stored in the reservoir. A filter located in the reservoir filters liquid moved from the reservoir by the pump assembly to the cooling system.
51 Citations
31 Claims
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1. An apparatus for selectively delivering forward and reverse moving liquid to structures accommodating a liquid comprising:
- a 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, means connected to the pump assembly and manifold for carrying liquid from the pump assembly to the first chamber of the manifold, input means connected to the manifold for receiving liquid from the second chamber and adapted to be connected to the structure accommodating a liquid, a control valve connected to the manifold in liquid communication with the first chamber, by-pass means connected to the control valve and manifold in liquid communication with the second chamber whereby reverse flow of liquid moves from the second chamber through the by-pass means, control valve, and first chamber to the means connected to the pump assembly so that the reciprocating pump piston causes sequential movement of the liquid in forward and reverse directions in the structure accommodating a liquid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- a 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;
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13. An apparatus for selectively delivering forward and reverse moving liquid to the cooling system of an internal combustion engine, said cooling system having a heater and liquid inlet hose connected to the heater and engine, comprising:
- a 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 operable in response to gas 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, means connected to the pump assembly and manifold for carrying liquid from the pump assembly to the first chamber of the manifold, input means connected to the manifold for receiving liquid from the second chamber and adapted to be connected to a liquid inlet host whereby liquid is directed to the engine and heater, a control valve connected to the manifold in liquid communication with the first chamber, by-pass means connected to the control valve and manifold in liquid communication with the second chamber whereby reverse flow of liquid moves from the second chamber through the by-pass means, control valve, and first chamber to the means connected to the pump assembly so that the reciprocating pump piston causes sequential movement of the liquid in forward and reverse directions in the cooling system of the internal combustion engine and heater.
- View Dependent Claims (14, 15, 16)
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17. An apparatus for sequentially delivering forward and reverse moving liquid to a structure accommodating a liquid comprising:
- pump means operable to move a liquid sequentially in forward and reverse directions, first means 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, second means connected to the pump means and first means for carrying liquid from the pump means to the first chamber of the first means, third means connected to the first means for receiving liquid from the second chamber adapted to be connected to the structure accommodating a liquid to deliver said liquid to the structure, and fourth means connected to the first means in liquid communication with the first and second chambers to carry liquid from the second chamber to the first chamber by-passing said one-way valve, whereby operation of the pump means causes sequential movement of the liquid in forward and reverse directions in the structure accommodating a liquid.
- View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
Specification