초록 ▼

In apparatus for control of liquid coolant flow to and from an engine and radiator coolant system, comprising a closed tank to receive the coolant; a first line extending at the exterior of the tank, and also communicating with the tank interior, the first line connectible with the coolant system; d

In apparatus for control of liquid coolant flow to and from an engine and radiator coolant system, comprising a closed tank to receive the coolant; a first line extending at the exterior of the tank, and also communicating with the tank interior, the first line connectible with the coolant system; ducting associated with the tank and having an inlet for connection to a source of compressed air, an outlet outside the tank, and having an aspiration side port between the inlet and outlet, the side port also connected to the tank interior; and a first valve for controlling compressed air flow through the ducting; whereby in one position of the valve compressed air flows into the tank via the side port to drive coolant from the tank interior via the first line and to the coolant system, and in another position of the valve compressed air flow through the ducting to the outlet acts to draw fluid into the tank from the engine coolant system via the first line, in response to suction communication to the tank interior via the side port.

대표청구항 ▼

In apparatus for control of liquid coolant flow to and from an engine and radiator coolant system, the combination comprising a) a closed tank to receive said coolant, b) a first line extending at the exterior of said tank, and also communicating with the tank interior, said first line connectible w

In apparatus for control of liquid coolant flow to and from an engine and radiator coolant system, the combination comprising a) a closed tank to receive said coolant, b) a first line extending at the exterior of said tank, and also communicating with the tank interior, said first line connectible with the coolant system, c) ducting associated with the tank and having an inlet for connection to a source of compressed air, an outlet outside the tank, and including a passage having an aspiration side port between said inlet and outlet, the side port also connected to the tank interior, d) and a first valve for controlling compressed air flow through said ducting, e) whereby in one position of the valve compressed air flows into the tank via said passage and side port to drive coolant from the tank interior via said first line and to said coolant system, and in another position of the valve, compressed air flow through the ducting including said passage to said outlet, acts to draw fluid into the tank from the engine coolant system via said first line, in response to suction communication to the tank interior via said side port, f) said passage being employed for air flow in both said valve positions, g) there being a cap on the tank and said ducting mounted on the tank cap to form a handle for carrying the tank, and said side port located in vertical alignment with the tank interiors, h) there being an auxiliary duct in communication with said side port and extending downwardly in the tank toward coolant therein, and having a terminus above said coolant, and a one-way flow checking device associated with said auxiliary duct in the tank interior, whereby when the coolant level in the tank rises to said terminus, suction communication from said passage to said first line via the tank interior is interrupted.