摘要:
The invention relates to a method and a device for using the waste heat of an internal combustion engine (2) comprising a thermodynamic working circuit (4) in which a working medium circulates. A pump (6), at least one heat exchanger (8) at least one expansion machine (10) and at least one capacitor (12) are arranged in the direction of flow of the working medium. The mechanical energy generated by the expansion machine (10) is selectively transferred to a drive train (23) and/or at least one other component (25) which can be driven mechanically.
摘要:
The invention relates to a method for operating a steam cycle process for using the heat of an internal combustion engine (2), comprising a conduction circuit (4) in which a working medium circulates. Said conduction circuit (4) comprises at least one pump (6, 13), at least one heat exchanger (8), an expansion machine (10), a feedwater tank (14) for storing the liquid working medium, and a condenser (12). Components of the conduction circuit (4) are frost-proofed by partially evacuating the liquid working medium. After the end of the circulation of the working medium, at least one of the pumps (6, 13) continues to operate in order to evacuate the working medium at least from the pump (6, 13) which continues to operate.
摘要:
A line circuit (4) and a method for operating a line circuit (4) for waste-heat utilization of an internal combustion engine (2) are proposed. A working medium circulates in the line circuit (4). The line circuit (4) contains a feed pump (6), at least one heat exchanger (8), an expansion machine (10), a feed-water container (14), in order to store the liquid working medium, and a condenser (12), wherein the feed-water container (14) is connected to the feed pump (6) by way of a line (29). The feed pump (6) has a return-flow line (30), via which liquid working medium can be discharged from the feed pump (6).
摘要:
The invention relates to a device and a method for the recovery of waste heat from an internal combustion engine (2), according to which a feed pump (6), a heat exchanger (8), an expansion engine (10) and a capacitor (12) are arranged in a circuit (4) containing a circulating working medium. A bypass connection (14) is mounted in parallel to the expansion engine (10), in the circuit (4), the expansion engine (10) being coupled to the circuit (4), or decoupled therefrom, according to an operating situation of the internal combustion engine (2).
摘要:
The invention relates to a device and a method for the recovery of waste heat from an internal combustion engine (2). A feed pump (6), a heat exchanger (8), an expansion engine (10) and a capacitor (12) are arranged in a circuit (4) containing a circulating working medium. A steam accumulator (40) for storing the vaporous working medium is also arranged in the circuit (4).
摘要:
The invention relates to a method for operating a steam cycle process for using the heat of an internal combustion engine (2), comprising a conduction circuit (4) in which a working medium circulates. Said conduction circuit (4) comprises at least one pump (6, 13), at least one heat exchanger (8), an expansion machine (10), a feedwater tank (14) for storing the liquid working medium, and a condenser (12). Components of the conduction circuit (4) are frost-proofed by partially evacuating the liquid working medium. After the end of the circulation of the working medium, at least one of the pumps (6, 13) continues to operate in order to evacuate the working medium at least from the pump (6, 13) which continues to operate.
摘要:
The invention relates to a device and a method for the recovery of waste heat from an internal combustion engine (2), according to which a feed pump (6), a heat exchanger (8), an expansion engine (10) and a capacitor (12) are arranged in a circuit (4) containing a circulating working medium. A bypass connection (14) is mounted in parallel to the expansion engine (10), in the circuit (4), the expansion engine (10) being coupled to the circuit (4), or decoupled therefrom, according to an operating situation of the internal combustion engine (2).
摘要:
The invention relates to a device (1) for converting waste heat of an internal combustion machine (2) into mechanical energy. The device comprises a piston machine (3) that converts the waste heat of the internal combustion machine (2) during an OCR process into mechanical energy which can be transmitted onto a shaft (7) driven by the internal combustion machine (2). Furthermore, a variable gear (6) is provided via which the piston machine (3) transmits the mechanical energy onto the shaft (7) of the internal combustion machine (2). The variable gear (6) translates an initial rotational speed of the piston machine (3) into a rotational speed of the shaft (7) driven by the internal combustion machine (2). In this way, the ORC process can be carried out in an optimal manner.
摘要:
A system for controlling a positioning unit in a motor vehicle includes various control units that influence the positioning unit coupled thereto. A drive slip control and an automatic transmission control both supply a control signal. Yet another control signal is dependent upon a driver request signal. For a period of time, the control signal from the automatic transmission control takes precedence over the other control signals.
摘要:
The invention is directed to a system for electronically controlling (open loop and/or closed loop) an internal combustion engine of a motor vehicle. By means of at least one measuring unit at least one signal is generated representing the position of a power-determining component and the measuring unit comprises several sensors. The measuring unit is associated with a power-determining component of the vehicle such as a throttle flap or the control rod and/or accelerator pedal. The sensors are checked with respect to their functional capability by comparing the signal values generated by the sensors to each other with respect to a pregiven tolerance range. When a fault of one or more of the sensors is detected, then that sensor or those sensors which is or are unaffected can be determined.