Gasoline engine low-pressure electromagnetic valve type fuel injector performance detecting system

Abstract

The invention relates to a gasoline engine low-pressure electromagnetic valve type fuel injector performance detecting system. The gasoline engine low-pressure electromagnetic valve type fuel injector performance detecting system comprises an experimental liquid pressure stabilizing and holding device, an experimental liquid driving device, an experimental liquid temperature adjusting device, an experimental liquid supplying device, a fuel injector installing and experimental liquid collecting device and a control system, wherein the experimental liquid pressure stabilizing and holding device is a constant temperature and constant press tank body and provided with five ports, namely, a nitrogen pressure input port, an experimental liquid supplying port, an experimental liquid output port, a temperature controlling input port and a temperature controlling output port, a pressure sensor, a temperature sensor and a liquid level sensor are arranged in the tank body, the nitrogen pressure input port is connected with the experimental liquid driving device, the experimental liquid supplying port is connected with the experimental liquid supplying device, the experimental liquid output port is connected with the fuel injector installing and experimental liquid collecting device, and the temperature controlling input port and the temperature controlling output port are connected with the experimental liquid temperature adjusting device to form a loop.

Description

technical field [0001] The invention belongs to the technical field of engines, and relates to a low-pressure solenoid valve fuel injector for a gasoline engine, in particular to a performance detection system for a low-pressure solenoid valve fuel injector for a gasoline engine. Background technique [0002] With the increasingly stringent automobile emission regulations at home and abroad, higher requirements are put forward for engine electronically controlled injection technology. Since the fuel injector is the core component of engine fuel atomization, the performance of the fuel injector has a great influence on the engine power, Economical, emission, etc. have a decisive impact. In order to standardize and guide the production of fuel injectors, my country has promulgated "GB / T 25362-2010 Gasoline Engine Solenoid Valve Injector Assembly Technical Conditions" and "GB / T 25363-2010 Gasoline Engine Solenoid Valve Injector Assembly Test Method" two national recommended sta...

AI Technical Summary

Problems solved by technology

[0004] The existing fuel injector cleaning devices on the market can only perform a simple evaluation of the fuel injection volume to eliminate faults such as fuel injector clogging, and cannot meet the needs of accurate detection of fuel injector performance.

Images