Tail gas after-treatment assembly and system for natural gas engine

A tail gas post-treatment and natural gas technology, which is applied to the electronic control of exhaust treatment devices, exhaust treatment, engine components, etc., can solve the problems of low exhaust gas temperature and cannot meet the catalyst carrier temperature, etc., and achieve the effect of improving conversion efficiency

Pending Publication Date: 2020-10-30
TENNECO SUZHOU EMISSION SYST
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  • Abstract
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AI Technical Summary

Benefits of technology

The technical effect of this patented technology relates to improving the performance of an internal combustion engine's air-fuel ratio control systems by utilizing a combination of two different methods: one method involves installing a new type of fuel injector at or near the location where the main stream of diesel oil flows into the engine; another approach uses naturally occurring gases like methane (NG) instead of adding them directly onto it for better warmup on starting engines.

Problems solved by technology

This patented describes how efficient heating can be achieved when burning methane (NG) fuel inside engines during winter months without losing its effectiveness due to freezing temperatures or excessive emissions from certain components such as filters.

Method used

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  • Tail gas after-treatment assembly and system for natural gas engine

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Embodiment Construction

[0017] Please refer to figure 1 As shown, the present invention discloses a system of a natural gas engine, which includes a natural gas engine 1, an intake system 2 connected to the intake end of the natural gas engine 1, and an exhaust gas exhaust system connected to the outlet end of the natural gas engine 1. Processing system 3.

[0018] The intake system 2 includes a turbocharger 21, an air filter 22 connected upstream of the turbocharger 21, a supercharging intercooler 22 connected downstream of the turbocharger 21, and An electronic throttle valve 23 connected downstream of the supercharged intercooler 22 . The electronic throttle valve 23 is connected with the intake port of the natural gas engine 1 . In the illustrated embodiment of the present invention, the intake system 2 further includes a mixer 24 connected between the supercharged intercooler 22 and the electronic throttle 23 . The mixer 24 is used to mix the air flowing out of the charge intercooler 22 with the

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Abstract

The invention relates to a tail gas after-treatment assembly. The tail gas after-treatment assembly is used for treating tail gas of a natural gas engine and comprises a tail gas after-treatment package; the tail gas after-treatment package comprises a shell and a catalyst carrier packaged into the shell; the tail gas after-treatment assembly further comprises a natural gas burner mounted on the upstream of the tail gas after-treatment package; and the natural gas burner is used for heating tail gas of the natural gas engine to increase the temperature of the tail gas during flowing through the catalyst carrier. The invention further relates to a system for the natural gas engine. The system for the natural gas engine comprises the natural gas engine and the tail gas after-treatment assembly. Compared with the prior art, the natural gas burner is arranged to heat the tail gas of the natural gas engine so that the catalyst carrier can be quickly heated up at the cold starting stage of the engine, and the converting efficiency of the tail gas is improved.

Description

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Claims

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Application Information

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Owner TENNECO SUZHOU EMISSION SYST
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