Air way of engine cylinder head and device for detecting and simulating performance of combustion chamber

Abstract

The invention provides an air way of an engine cylinder head and a device for detecting and simulating the performance of a combustion chamber. The device comprises a body, a valve duct, an air exhaust valve and an air inlet valve, wherein the body simulates the structure of a cylinder head, and the left and the right of the body are respectively provided with an air inlet way, an air exhaust way and a mounting inclined hole for ducts of the air inlet valve and the air exhaust valve; the valve duct is pressed into the inclined holes at both sides of the body in an interference mode; the air exhaust valve and the air inlet valve are arranged in the valve duct; the upper ends of the air exhaust valve and the air inlet valve are connecting ends matched with a measuring device; positioning platforms matched with the measuring device are respectively arranged on the body close to the mounting inclined hole of the duct of the air exhaust valve; and the positioning platforms are respectively vertical to axial lines of respective corresponding valves. The device is used by matching with a measuring instrument, wherein the connecting ends at the upper ends of the air exhaust valve and the air inlet valve are connected with the measuring device, and the positioning platforms are matched with the measuring device. The air inlet and exhaust processes of an engine are simulated through controlling the strokes of the air inlet valve or the air exhaust valve so as to check parameters of air flows. The invention can detect the performance of the cylinder head under the condition of not manufacturing an engine cylinder head entity and save verification time and cost.

Description

technical field [0001] The invention relates to an engine simulation device, in particular to a simulation device for detecting the performance of a cylinder head air channel and a combustion chamber. Background technique [0002] The cylinder head is an important part of a car engine, especially the design of its combustion chamber and intake and exhaust passages. These important parts need to meet the smoothness of the intake air and the requirements of the airflow form, and also prevent the exhaust from resistance and other Failure phenomenon of air stripping. Usually, to verify whether the combustion chamber and intake and exhaust ports of a newly designed cylinder head meet the design requirements, it must be tested after the cylinder head is manufactured, which takes 4-5 months. Requirements, you need to modify the mold to repeat the verification, which is a lot of work, and it also consumes time and resources. Contents of the invention [0003] The technical probl...

AI Technical Summary

Problems solved by technology

Usually, to verify whether the combustion chamber and intake and exhaust ports of a newly designed cylinder head meet the design requirements, it must be tested after the cylinder head is manufactured, which takes 4-5 months. Requirements, you need to modify the mold to repeat the verification, so the workload is large, and it also consumes time and resources

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