A heat-storage device

F - Mech Eng,Light,Heat,Weapons – 02 – N

Patent

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Details

F02N 19/10 (2010.01) F01P 11/20 (2006.01)

Patent

CA 2204764

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-block passageways to the storage container (7), wherein the two chambers (8, 8') can be placed in flowcommunication with one another through the medium of at least one valve means (19) provided in the movable plunger means.

L'invention concerne un dispositif de stockage de chaleur destiné à un moteur à combustion interne refroidi par liquide, et destiné à chauffer le moteur avant son démarrage. Le bloc moteur (2) présente une pompe (3) à liquide de refroidissement ainsi que des passages de circulation d'agent de refroidissement. le dispositif de stockage de chaleur comprend un récipient (7) de stockage thermo-isolé destiné à stocker du liquide de refroidissement chauffé, un piston mobile (9) animé d'un mouvement de va-et-vient, monté dans le récipient (7) et divisant celui-ci en deux chambres (8, 8'), lesquelles sont reliées à l'admission et à la sortie des passages de liquide de refroidissement du bloc moteur, et une pompe (10) au moyen de laquelle du liquide de refroidissement peut passer des passages du bloc moteur au récipient de stockage (7). Les deux chambres (8, 8') peuvent être mises en communication fluide l'une avec l'autre par l'intermédiare d'au moins une soupape (19) ménagée dans le piston mobile.

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