发明名称 |
DRAIN-AND-FILL METHODS AND APPARATUS FOR AUTOMOTIVE COOLING SYSTEMS |
摘要 |
A drain-and-fill machine is disclosed that can accommodate a cooling system having an inlet-side thermostat. The drain-and-fill machine includes a reservoir of fresh or recycled antifreeze/coolant and a reservoir to receive used antifreeze/coolant. The drain-and-fill machine introduces the fresh or recycled antifreeze/coolant into the cooling system of an automobile while simultaneously draining the used antifreeze/coolant into the used coolant reservoir. When the engine is cold, the engine's inlet side-thermostat will prevent new antifreeze/coolant from entering the cooling system, thereby making it possible to drain the used antifreeze/coolant from the cooling system, without simultaneously replenishing the cooling system with fresh or recycled antifreeze/coolant. The present drain-and-fill machine includes a thermostat disposed in the reservoir drain line having similar operating characteristics to the engine's inlet-side thermostat. The drain line thermostat will thus prevent the used antifreeze/coolant from being drained from the engine's cooling system when the engine's inlet-side thermostat is closed, until the coolant has reached a sufficient temperature to allow both the inlet-side and drain-line thermostats to open.
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申请公布号 |
CA2183018(A1) |
申请公布日期 |
1997.02.11 |
申请号 |
CA19962183018 |
申请日期 |
1996.08.09 |
申请人 |
PRESTONE PRODUCTS CORPORATION |
发明人 |
CREERON, RICHARD F.;BERKE, NORMAN D.;MOTARD, JERRY |
分类号 |
F01P11/02;F01P11/06;(IPC1-7):F01P11/02 |
主分类号 |
F01P11/02 |
代理机构 |
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