System for recycling exhaust manifold heat to realize engine boosting

Abstract

The invention relates to a system for recycling exhaust manifold heat to realize engine boosting. The system comprises an exhaust manifold and a booster pushed by high-temperature steam, wherein the booster comprises a turbine and a gas compressor; a turbine blade in the turbine is in transmission connection with a gas compression blade in the gas compressor; an exhaust manifold water sleeve coats the exhaust manifold; the exhaust manifold water sleeve is an internal through cavity body; one end of the exhaust manifold is accessed into a cooling liquid from a radiator or an engine water outlet through an inlet; the cooling liquid is heated to a high-temperature gas state in the exhaust manifold water sleeve; the gasified high-temperature gas is output to a gas inlet of the turbine through an outlet; the turbine is provided with a gas inlet cavity and a turbine cavity which are separated, a spray nozzle is arranged between the two cavities, the inlet of the spray nozzle is connected into the gas inlet cavity, the spray nozzle is formed in the turbine cavity; the gas inlet cavity is used for flowing the inlet gas to a plurality of spray nozzles; high-speed gas sprayed by the spray nozzles promotes the turbine blade to rotate, and drives the gas compression impeller in the gas compressor to rotate; the gas compressor is accessed into the atmosphere or output to the engine directly or after being boosted by the gas compression impeller.

Description

technical field [0001] The invention relates to an automobile component, in particular to a system for recovering exhaust manifold heat to realize engine supercharging. Background technique [0002] The engine pushes the piston to do work through the high-temperature and high-pressure gas generated by fuel combustion. Due to structural constraints and other factors, it is impossible for the high-temperature and high-pressure gas to cool to room temperature before it is discharged from the cylinder through the exhaust port and exhaust manifold. Usually, the gasoline engine used in vehicles The internal gas temperature of the exhaust manifold is as high as 800°C or more. In order to achieve the purpose of increasing the engine power and reducing the volume and weight of the engine, the existing gasoline engine for vehicles generally adopts exhaust gas turbocharging technology, which uses high-temperature and high-pressure engine exhaust gas to directly drive the turbine to rot...

AI Technical Summary

Problems solved by technology

An inventor proposed a public technology called "Recycled Explosion-proof Diesel Engine Exhaust Manifold Device" (application number CN201320085334.4), which exchanges heat between the air entering the intake system of the diesel engine from the filter and the exhaust manifold, Improving the intake air temperature of the engine provides higher energy for turbo charging, but lower efficiency

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