摘要:
A rotary exhaust heat recovery apparatus may include an exhaust gas pipe including a bypass path into which a high-temperature exhaust gas is introduced and bypassed and an extension part extending from a side of the bypass path in a semi-cylindrical shape to allow the exhaust gas to pass and a semi-cylindrical heat exchanger rotatably accommodated within the exhaust gas pipe, allowing heat exchange to be performed between the high-temperature exhaust gas supplied from the bypass path and a low-temperature coolant introduced through a coolant inlet, in which a side surface of the heat exchanger includes a diameter surface formed as a flat surface and an arc surface formed as a curved surface, and the diameter surface of the heat exchanger has a surface with a rotation axis of the heat exchanger as a reference thereof which is closed and another surface provided with exhaust gas inlets.
摘要:
An exhaust heat recovery apparatus may include a bypass valve that is rotatably provided on a bypass path through which a high-temperature exhaust gas passes to open or close the bypass path, a heat exchanger that is communicatively connected to the bypass path to allow heat exchange to be performed between the high-temperature exhaust gas supplied from the bypass path and a low-temperature coolant introduced through a coolant inlet when the bypass path is closed, a valve actuator including a rod moved up and down by expansion or contraction of a wax sealed therein, and a connection part that converts an up and down motion of the rod into a rotary motion to allow the bypass valve to open or close the bypass path along with movement of the rod.
摘要:
An operating structure of an exhaust heat recovery device may include a bypass valve rotatable about a rotation shaft to open and close a bypass passage; a heat exchanger communicating with the bypass passage, a valve actuator inserted into the heat exchanger, and having a piston moved upward and downward depending on a temperature of coolant; a guide unit in which an end of the piston is slidably inserted, and at which an end of a rod is slidably inserted; a displacement transmission medium accommodated in the guide unit, and moved along with the piston; a link unit rotatably connected to the bypass valve and the rod, and converting sliding motion of the rod into rotation of the bypass valve; and an elastic restoring unit operating the rod so that the rod is inserted into the guide unit, or operating the bypass valve so that the bypass valve is closed.