An exhaust manifold with heat recovery

Abstract

An exhaust manifold with heat recovery function relates to the technical field of engine exhaust system devices, including a manifold body located on the exhaust side of the engine, and also includes: a battery assembly connected to the circuit system of the vehicle; a heat conduction module, including The first heat pipe attached to the manifold body and the second heat pipe and the third heat pipe respectively connected to the first heat pipe. The first heat pipe includes a main pipe and a thermal control module arranged at the end of the main pipe. The thermal control module communicates with the first heat pipe and the second heat pipe. The second heat pipe and the third heat pipe; the waste heat recovery module includes a thermoelectric conversion device connected to the second heat pipe, and the thermoelectric conversion device is connected to the battery assembly; the third heat pipe is connected to the intake side of the engine, and the third heat pipe includes a heat conduction part attached to the surface of the engine and the heat dissipation part movably connected on the top of the heat conduction sheet. The invention has the advantages of high heat utilization efficiency, adapting to the development direction of new energy vehicles, improving the working state of the engine, improving the working efficiency, further saving energy and reducing emission, and having high power generation efficiency.

Description

technical field [0001] The invention relates to the technical field of engine exhaust system devices, in particular to an exhaust manifold with heat recovery function. Background technique [0002] As an internal combustion engine, the engine needs to have a certain optimum working temperature in order to achieve the best output efficiency and combustion efficiency. If the overall temperature is too low, it will cause insufficient fuel combustion in the cylinder, and if the temperature is too high, it will cause fuel shock or engine body. Problems such as overheating damage. Generally, by setting water channels in the engine block and filling them with cooling water, the heat of combustion in the cylinder is conducted through the thermal conductivity of the cooling water to heat the engine or bring the excess heat to the intercooler for cooling and heat dissipation. As a medium with a high specific heat capacity, water heats up slowly, and it takes a long time to reach the ...

AI Technical Summary

Problems solved by technology

General pure electric vehicles have the disadvantages of short mileage and poor battery life due to the limitation of battery technology; under the current technological conditions, the hybrid driving mode of internal combustion engine and electric motor has become the mainstream. Upgrade to 48V to achieve hybrid and support more vehicle electronic components. In this system, the 48V battery needs the engine to drive the generator to generate electricity. Compared with the 12V battery in the prior art, it needs to consume more engine kinetic energy to generate electricity, that is, the increase in disguise The load and power consumption of the engine are reduced, and a more efficient, low-pollution, and low-power generation mode is required at this time

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