摘要 |
The present invention relates to a heat-storage device for a liquid-cooled internal combustion engine and intended for heating the engine prior to starting the same, wherein the engine block (2) has a coolant pump (3) and coolant circulating passageways, wherein the heat-storage device includes a thermally-insulated storage container (7) for storing heated coolant, a reciprocatingly movable plunger means (9) mounted in the container (7) and functioning to divide the container into two chambers (8, 8') which are connected with the inlet and outlet of the engine-block coolant passageways, and a pump (10) by means of which coolant can be passed from the engine-bloc k passageways to the storage container (7), wherein the two chambers (8, 8') c an be placed in flowcommunication with one another through the medium of at lea st one valve means (19) provided in the movable plunger means.
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