Patent ID: 8683984

Claim:
A thermocompression motor, comprising: a cylinder; a piston, which is disposed reciprocatingly movable in said cylinder and which divides said cylinder into a first chamber and a second chamber; a heat exchanger having at least one air channel, which connects said first chamber with said second chamber, and having at least one exhaust gas channel, which connects said second chamber with an external environment, said at least one air channel and said at least one exhaust gas channel being disposed with respect to one another to allow a heat exchange; an intake device via which said first chamber is connected to the external environment; and valve devices for controlling inflows and outflows in said first chamber and said second chamber of said cylinder and in said at least one air channel and said at least one exhaust gas channel of said heat exchanger, said valve devices being controlled such that the following cycles are carried out in succession, namely: in a thermocompression cycle as a first cycle, during a volume reduction of said first chamber, said first chamber is connected with said second chamber via said at least one air channel, whereby air from said first chamber is expelled into said heat exchanger and heated air from said heat exchanger is conveyed into said second chamber, an inflow via said intake device into said first chamber as well as an outflow from said second chamber into said at least one exhaust gas channel is however interrupted; subsequently, in a second cycle, during a volume reduction of said first chamber, a connection between said at least one air channel and said second chamber is closed and fuel that has been introduced is burned in said second chamber, wherein an inflow to said first chamber is still interrupted; in a third cycle, during a subsequent volume increase of said first chamber, only a connection of said second chamber to said at least one exhaust gas channel is open; and in a fourth cycle, during a further volume increase of said first chamber, an inflow thereto via said intake device is opened, while a connection between said first chamber and said second chamber via said at least one air channel is interrupted.