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US 7,111,651 B2Granted
Engine coolant changing system
AssigneesRobert A. Doty, Kyung Ae Kim
InventorRobert E. Flynn
Life of this patent
Estimating the term…
Abstract
An engine cooling system liquid insertion and removal system has an adapter disposed in a vehicle radiator service opening via which old coolant is removed from the engine system by partial vacuum applied to an old coolant container via a conduit. New coolant is introduced via the adapter by atmospheric pressure from a portable container. Conduits interconnect the engine cooling system, the old and new coolant containers, and a source of partial vacuum applied to conduits.
Claims15
A vehicle engine coolant changing system comprising:
- an old coolant container having an inlet opening and an outlet opening,
- a new coolant container having an inlet opening and an outlet opening,
- an adapter disposed in an engine radiator service opening and having a passage therethrough, the adapter has a tapered configuration to engage in service openings of various sizes,
- an old solution conduit interconnecting an engine interior and said inlet opening of the old coolant container for transfer of old coolant from the engine interior to the old coolant container,
- a new conduit interconnecting the new coolant container and the adapter to pass new coolant from the new coolant container into the engine by atmospheric pressure,
- means to provide a partial vacuum in the old coolant container to draw old coolant from the engine interior into the old coolant container via a conduit,
- means to apply atmospheric pressure to new coolant in the new coolant container to urge said coolant into the engine, and
- a single control operable to provide rapid and efficient changes in flow patterns via conduits and valves of the system.
5 more elements
A vehicle engine coolant changing system comprising;
- an old coolant container having an inlet opening in an outlet opening,
- a new coolant container having an inlet opening and an outlet opening,
- an adapter disposed in an engine radiator service opening and having a passage therethrough,
- an old solution conduit interconnecting an engine interior and said inlet opening of the old coolant container for transfer of old coolant from the engine interior to the old coolant container,
- a conduit interconnecting the new coolant container and the adapter,
- means to apply atmospheric pressure to new coolant in the new coolant container, to urge said coolant into the engine,
- an end of an upper radiator hose is disconnected,
- an upper cone adapter adapted to be didposed in a port from which, said radiator hose is removed,
- a stepped adapter adapted to be inserted into the upper radiator hose and clamped thereto,
- a main service line connected to said adapter in said engine radiator service opening and a pump connected with a pressure line, and
- old coolant being drawn from the vehicle radiator by a partial vacuum in said old solution container while new coolant is pumped into the radiator from the new coolant container by a pump connected with a secondary service line and the adapter, the pump being operated by pressure via a control.
8 more elements
Dependencies are inferred from the claim text.