Exhaust gas heat recovery system and exhaust system
AssigneeVolkswagen Aktiengesellschaft
InventorsAndré Horn, Asmus Carstensen, Artur Semke, Thomas Maischik, Thomas Schulenburg
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Abstract
An exhaust gas heat recovery system for an internal combustion engine has a pump for conveying an operating fluid, an evaporator for converting the operating fluid from the liquid state to the gaseous state, and a condenser for liquefaction of the operating fluid, and having an expansion engine through which the gaseous operating fluid can flow. A sensor is arranged on the expansion engine with which a function of the expansion engine can be monitored. An exhaust system may have such an exhaust gas heat recovery system, and a method for the diagnosis of such an exhaust heat recovery system.
Claims9
An exhaust gas heat recovery system for an internal combustion engine, comprising:
- a pump for conveying an operating fluid,
- an evaporator for converting the operating fluid from the liquid state to the gaseous state,
- a condenser for liquefaction of the operating fluid,
- an expansion engine through which the gaseous operating fluid flows, and
- a sensor arranged on the expansion engine with which a function of the expansion engine can be monitored,
- wherein the expansion engine is designed as an axial piston expander, and
- wherein a solder of the bearing surface of the sensor is at right angles to the direction of movement of the piston of the axial piston expander.
Dependencies are inferred from the claim text.