Temperature control throttle device for an engine

A temperature control throttle device comprising:

• a first throttle including a valve body;
• and
• a first pipeline and a second pipeline,
• wherein the first pipeline and the second pipeline are connected in parallel to a same side of the first throttle with respect to an air flow direction, and
• wherein the second pipeline is provided with a heat exchanger for heating air flowing through the second pipeline with engine coolant, engine oil or engine exhaust gas as a heat source,
• wherein the first pipeline and the second pipeline are located upstream of the first throttle, and the first throttle has a first inlet connected to the first pipeline, a second inlet connected to the second pipeline, and an outlet connected to an engine air-intake manifold;
• or, the first pipeline and the second pipeline are located downstream of the first throttle and are both connected to an engine air-intake manifold, and the first throttle has an air intake inlet, a first outlet connected to the first pipeline, and a second outlet connected to the second pipeline,
• wherein the valve body comprises a first blocking member and a second blocking member provided at two ends thereof, respectively,
• wherein when the valve body is in a closed state, the valve body forms a sealing with two inner walls of the first throttle to prevent air from passing through the first throttle, and the first blocking member blocks the second inlet or the second outlet, respectively,
• wherein, as the valve body performs a motion on an inner surface of the first throttle, a blocking degree of the first blocking member to the second inlet or the second outlet, respectively, gradually decreases, and when the valve body moves to a predetermined threshold position, the sealing between the valve body and the two inner walls of the first throttle is released,
• wherein the first inlet and the second inlet are arranged physically adjacent to each other and match with the valve body of the first throttle, or, the first outlet and the second outlet are arranged physically adjacent to each other and match with the valve body.