Valving for engine cooling system flushing apparatus and method
AssigneeWynn Oil Company
InventorsJohn A. Babish, Larry K. Arnot, Douglas C. Appel
Life of this patent
Estimating the term…
Abstract
An internal combustion engine cooling system is flushed by: A. providing a controlled pressurized flow of flushing liquid and entrained gas bubbles, B. and passing said flow alternately through I. the radiator in a reverse direction, Ii. the engine coolant passages in a reverse direction, Iii. the radiator in a forward direction, Iv. the engine coolant passages in a forward direction. Flow distribution control valves have ports directly connected so that the valve selectors may have corresponding clock angle positions; also, short length plastic tubing may be used to connect the valve ports, and to connect to console ports.
Claims21
For combination with an internal combustion engine cooling system that includes a liquid coolant heater, radiator and a liquid coolant pump, flushing apparatus comprising:
- a. first means to produce a pressurized flow of flushing liquid and entrained gas bubbles,
- b. a series of flow ports selectively connectible to different points in said system, utilizing appropriate adaptors, said ports including first, second and third ports,
- c. control means operable to direct said flow from said first means and via said ports in four separate modes, identified as follows:
- i. through the radiator in a reverse direction,
- ii. through the engine coolant passages in a reverse direction,
- iii. through the radiator in a forward direction
- iv. through the engine coolant passages in a forward direction
- d. said control means including a primary valve connected to receive said flow in the form of pressurized water and air bubbles, said valve having three outlets respectively connectible with said first, second and third ports,
- e. said series of flow ports including a drain port, and said control means including a secondary valve having three inlets respectively connectible with said first, second and third ports, said secondary valve having a discharge port connectible with the drain port, and
- f. the three outlets of the primary valve respectively directly communicating with the three inlets of the secondary valve via first, second and third ducts to which said first, second and third ports are respectively connectible.
For combination with an internal combustion engine cooling system that includes a liquid coolant heater, radiator and a liquid coolant pump, flushing apparatus comprising:
- a. first means to produce a pressurized flow of flushing liquid and entrained gas bubbles,
- b. a series of flow ports selectively connectible to different points in said system, utilizing appropriate adaptors, said ports including at least two ports,
- c. control means operable to direct said flow from said first means and via said ports in four separate modes, identified as follows:
- i. through the water pump and radiator in a reverse direction,
- ii. through the heater, engine coolant passages and water pump in a reverse direction,
- iii. through the radiator and water pump in a forward direction
- iv. through the water pump, engine coolant passages and heater in a forward direction
- d. said control means including a primary valve connected to receive said flow in the form of pressurized water and air bubbles, said valve having multiple outlets respectively connectible with said ports,
- e. said series of flow ports including a drain port, and said control means including a secondary valve having multiple inlets respectively connectible with said ports, said secondary valve having a discharge port connectible with the drain port, and
- f. the outlets of the primary valve respectively directly communicating with the inlets of the secondary valve via multiple ducts to which said ports are respectively connectible.
Dependencies are inferred from the claim text.