What is a cylinder pressure gauge? Cylinder pressure gauge specifications and models

What is a cylinder pressure gauge?

The cylinder pressure gauge is a special instrument used to detect the compression pressure of the cylinder. The size of the cylinder compression pressure is directly related to the quality of the cylinder sealing. Cylinder sealing is one of the main factors affecting the power and economy of diesel engines. It is related to the condition of the cylinder, cylinder head, cylinder gasket, piston, piston ring, and intake and exhaust valves. During the use of a diesel engine, due to wear, ablation, carbon deposition, damage and other reasons of parts, the sealing performance of the cylinder will be reduced and the compression pressure of the cylinder will be insufficient. The cylinder pressure gauge can be used to diagnose thecylinder, Piston failure.

1. Structural composition of cylinder pressure gauge The cylinder pressure gauge assembly consists of a pressure gauge with a range of 0~5·88MPa, a connecting hose, a single air inlet valve and a pressure gauge suitable for various machines. Type of interchangeable connectors, etc. There is a release valve on it to return the pointer to "0".

2. Measurement method Cylinder pressure gauges are divided into push-in type and threaded interface type according to the interface form. Push-in cylinder pressure gauges are used for gasoline engines, and threaded interface cylinder pressure gauges are used for diesel engines. Because the diesel engine has a large compression force, the pressure gauge head must be tightly fastened to the position where the injector is installed before measurement can be made. When measuring a gasoline engine, the compression force is relatively small and can be held by handPressure gauge, placed directly on the spark plug hole for measurement.

Cylinder pressure gauge specifications and models

In the instrument model representation: Y represents pressure, Z represents vacuum or damping, B represents explosion-proof or standard, J represents precision or rectangular, A represents ammonia meter, X represents signal or Electric contact, XC means magnetically assisted electric contact, P means diaphragm, E means membrane box, F means anti-corrosion, N means earthquake resistance, T means spring tube, B means stainless steel, etc. The ones we commonly use are: YTF means stainless steel pressure gauge, YA means ammonia pressure gauge, YXC means electric contact pressure gauge, YZ means vacuum pressure gauge, YY means acetylene pressure gauge, YO means heat-resistant pressure gauge, YH means hydrogen pressure. table and so on.



YQ and YQF series two-stage pressure regulators are mainly suitable for analytical instruments, environmental protection instruments and equipment, power industry, and other instruments and equipment that require precise control and adjustment of input pressure. It is also suitable for non-corrosive (YQ series) or corrosive (YQF series) pure gas and standard mixed gas. After precise adjustment of the high-pressure gas source of the cylinder gas, it is sent to the instrument and equipment.

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