An automobile engine low pressure simulation tester

Abstract

The invention provides a low air pressure simulation tester for an automobile engine. The tester comprises a control chamber, a pressure measuring piece and a simulation chamber which are sequentially connected in the direction from the air inlet to the air outlet; the air inlet and the air outlet of the control chamber are respectively A seal is provided; the air outlet of the simulation chamber is connected with the air inlet of the engine. The simulator described in the technical solution provided by the present invention is connected on the intake pipe of the engine, and the low pressure in the simulated cabin can be realized by controlling the filter function of the seal, the ball and the sponge of the cabin, and the negative pressure of the engine air intake. Air pressure, and then realize the low air pressure of the engine intake, simulate the air pressure conditions in the plateau area, and realize the purpose of the simulation test; specifically, it can simulate the air pressure in the range of 0km to 7km or even higher above sea level; the sponge and steel balls can filter the air, Homogenize the intake air density. Moreover, the simulator has the advantages of novel design, simple structure, convenient production and low cost.

Description

technical field [0001] The invention relates to an automobile engine testing device, in particular to an automobile engine low air pressure simulation tester. Background technique [0002] my country's terrain is high in the west and low in the east, with the vast Qinghai-Tibet Plateau and the Loess Plateau in the west, and wide plains in the east and central, with a large difference in altitude. All kinds of civil vehicles, agricultural machinery vehicles, engineering machinery vehicles, various special vehicles, military vehicles, etc. in our country must adapt to work in plain areas and high altitude areas, so engine development, tuning, modification, etc. need to be tailored to different needs carried out at altitude. At present, engine production plants and vehicle plants are mostly located in plain areas, and the problem of low air pressure testing follows. Professional low-pressure laboratory construction costs, maintenance costs, use costs and other costs are high,...

AI Technical Summary

Problems solved by technology

Professional low-pressure laboratory construction costs, maintenance costs, use costs and other costs are high, and the construction period is long, but there are few low-pressure simulation testers and the existing equipment is relatively complicated, and it is often necessary to install an evacuation pump for air extraction , complex structure, cumbersome installation

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