Heating system for occupant spaces in power vehicles with liquid-cooled internal combustion engines
AssigneeRobert Bosch GmbH
InventorJohannes-Gerhard Bertling
Life of this patent
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Abstract
A heating system for an occupant space of a power vehicle with a liquid-cooled internal combustion engine comprises a heating unit including a chamber, an element accommodated in the chamber and rotatable by an internal combustion engine, an immovable structural part forming at least one gap with the element, the chamber being filled with a viscous liquid and rinsed by a cooling liquid of the internal combustion engine, a heat exchanger arranged in the occupant space of the power vehicle, and means for supplying the cooling liquid from the heating device to the heat exchanger and from there through the internal combustion engine back to the heating device.
Claims12
A heating system for an occupant space of a power vehicle with a liquid-cooled internal combustion engine, comprising a heating unit including a chamber, said element accommodated in said chamber and rotatable by an internal combustion engine;
- an immovable structural part forming at least one gap with said element, said chamber being filled with a viscous liquid and rinsed by a cooling liquid of the internal combustion engine;
- a heat exchanger arranged in the occupant space of the power vehicle;
- means for supplying the cooling liquid from said heating device to said heat exchanger and from there through said internal combustion engine back to said heating device, said element being formed as a rotatable wheel, said chamber having a chamber wall forming said structural part, so that said gap is formed between said rotatable wheel and said chamber wall, said wheel having an axis of rotation;
- and further comprising means forming a viscous liquid supply chamber provided in a said chamber wall near said wheel in direction parallel to said axis of rotation.
A heating system for an occupant space of a power vehicle with a liquid-cooled internal combustion engine, comprising a heating unit including a chamber, an element accommodated in said chamber and rotatable by said internal combustion engine;
- an immovable structural part forming at least one gap with said element, said chamber being filled with a viscous liquid and rinsed by a cooling liquid of the internal combustion engine;
- a heat exchanger arranged in the occupant space of the power vehicle;
- means for supplying the cooling liquid from said heating device to said heat exchanger and from there through said internal combustion engine back to said heating device, said element being formed as a rotatable wheel, said chamber having a chamber wall forming said structural part, so that said gap is formed between said rotatable wheel and said chamber wall, said chamber accommodating said wheel being provided in its upper region with a passage which leads to a viscous liquid supply chamber provided in said chamber wall and has a region facing toward said chamber accommodating said wheel;
- and stripping means located in said region of said passage and acting on a peripheral surface of said wheel for stripping the viscous liquid.
A heating system for an occupant space of a power vehicle with a liquid-cooled internal combustion engine, comprising a heating unit including a chamber, an element accommodated in said chamber and rotatable by said internal combustion engine;
- an immovable structural part forming at least one gap with said element, said chamber being filled with a viscous liquid and rinsed by a cooling liquid of the internal combustion engine;
- a heat exchanger arranged in the occupant space of the power vehicle;
- means for supplying the cooling liquid from said heating device to said heat exchanger and from there through said internal combustion engine back to said heating device, said element being formed as a rotatable wheel, said chamber having a chamber wall forming said structural part, so that said gap is formed between said rotatable wheel and said chamber wall;
- and further comprising a ring which is rotatably guided on said chamber wall and surrounds the peripheral surface of said wheel, said ring having an inner surface which forms a limit for said gap.
Dependencies are inferred from the claim text.