Natural gas engine and EGR second-stage cooling device thereof
An EGR cooler and two-stage cooling technology, which is applied to engine components, combustion engines, machines/engines, etc., can solve problems such as prone to knocking, low temperature after cooling, and affecting engine life, so as to improve reliability and reduce The demand for heat dissipation power and the effect of solving difficult matching
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[0025] In view of this, the core of the present invention is to disclose an EGR secondary cooling device for a natural gas engine, so as to ensure the service life of the engine. In addition, another core of the present invention is to disclose a natural gas engine with the above-mentioned EGR secondary cooling device.
[0026] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] Such as figure 1 As shown, the present invention discloses an EGR secondary cooling device for a natural gas engine, which is used for secondary cooling of EGR exhaust gas, which includes an EGR cooler 2 and a carburetor. Wherein, the input end of the EGR cooler 2 is connected with the exhaust pipe 1 of the EGR exhaust gas, that is, the EGR exhaust gas is cooled by the EGR cooler 2 at the first stage. The a...
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