초록 ▼

An automotive vehicle such as, for example, an electric car is provided with a liquid heating and circulating apparatus for heating the interior of the vehicle body. The liquid heating and circulating apparatus is provided with a main tank containing liquid, a heater mounted in the main tank for hea

An automotive vehicle such as, for example, an electric car is provided with a liquid heating and circulating apparatus for heating the interior of the vehicle body. The liquid heating and circulating apparatus is provided with a main tank containing liquid, a heater mounted in the main tank for heating the liquid, and a pump for circulating the liquid heated by the heater. The liquid heating and circulating apparatus is also provided with a water supply unit connected to the main tank and accommodating a pressure relief valve assembly, and an auxiliary tank connected to the water supply unit. The pressure relief valve assembly is operated according to predetermined pressures within the main tank to place the main tank in communication with the auxiliary tank.

대표청구항 ▼

[ What is claimed is:] [1.] A liquid heating and circulating apparatus for use in a liquid circuit located in an automotive vehicle, said liquid heating and circulating apparatus comprising:a main liquid tank;a heater mounted in said main liquid tank;a liquid circulation pump operably connected to s

[ What is claimed is:] [1.] A liquid heating and circulating apparatus for use in a liquid circuit located in an automotive vehicle, said liquid heating and circulating apparatus comprising:a main liquid tank;a heater mounted in said main liquid tank;a liquid circulation pump operably connected to said main liquid tank for use in circulating liquid through the liquid circuit;an auxiliary tank fluidically connected to said main liquid tank;a liquid supply unit fluidically connected between said main liquid tank and said auxiliary tank; anda pressure relief device operably provided in said liquid supply unit to normally block communication between said main liquid tank and said auxiliary tank and to establish communication between said main liquid tank and said auxiliary tank according to predetermined pressures within said main liquid tank;wherein said main liquid tank and said auxiliary tanks are separate components;wherein said main liquid tank has a fitting located thereon; andwherein said auxiliary tank has a fitting located thereon engageable with said fitting of said main liquid tank so as to join said main liquid tank to said auxiliary tank, thus forming a single integral component.