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Indicator valve for measuring high sealing performance of marine diesel engine

A technology for marine diesel engines and indicator valves, which is applied in the direction of lifting valves, valve details, valve devices, etc., can solve the problems of valve leakage, insufficient sealing area, etc., achieve improved sealing performance, wide sealing area, and meet harsh working requirements Effect

Pending Publication Date: 2021-04-30
HUDONG HEAVY MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the currently known products can better complete the measurement function we need, due to the line contact between the valve stem and the valve seat of the existing products, the sealing area is insufficient. After a long time of use, the valve stem and the valve seat The valve seat will cause air leakage after the valve seat is worn

Method used

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  • Indicator valve for measuring high sealing performance of marine diesel engine

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Embodiment Construction

[0013] Below in conjunction with figure and embodiment, a preferred example of the present invention is described in detail

[0014] Such as figure 1 Shown is a schematic structural diagram of the high-tightness indicator valve described in the invention patent. It can be seen from the figure that the present invention is used for a high-sealing indicator valve for marine diesel engines, including a valve body 1, a connecting body 2, a seal 3, a valve stem 4, a valve seat 5, a valve stem guide bush 6, a bushing 7), Lock washer 8, lock nut 9, protective cap 11 and special wrench 10;

[0015] The connecting body 2 is screwed into the threaded connection at the lower end of the valve body 1; the sealing member 3 is installed between the valve body 1 and the connecting body 2, and the valve stem 4 passes through The valve body 1 is installed in the valve body 1, the valve seat 5 is pressed into the seal at both ends of the valve body 1, and the vertical sealing surface of the mi...

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Abstract

The invention discloses an indicator valve for measuring high sealing performance of a marine diesel engine The indicator valve is characterized by comprising a valve body, a connecting body, a sealing piece, a valve rod, a valve seat, a valve rod guide sleeve, a lining, a locking gasket, a locking nut, a protective cap and a special wrench. A face sealing structure is formed between the valve rod and the valve seat, and air leakage of the valve body due to fatigue abrasion generated after long-time work in an existing linear contact mode is effectively avoided. The valve rod is made of high-temperature-resistant and high-pressure-resistant alloy steel materials, the valve seat is made of high-temperature-resistant, corrosion-resistant and abrasion-resistant materials, and severe working requirements for high temperature, high pressure and high friction can be met.

Description

technical field [0001] The invention relates to the measurement of the pressure curve in the cylinder of a diesel engine, in particular to a power indicating valve used for the measurement of high sealing performance of the marine diesel engine. Background technique [0002] With the continuous improvement of ship economy requirements, the performance indicators of marine diesel engines have been continuously strengthened, and the maximum burst pressure and average effective pressure in the cylinder have continued to increase. In this way, more and more requirements have been put forward for the indicator dynamometer measuring equipment that directly measures the pressure curve in the cylinder. high demands. Although the currently known products can better complete the measurement function we need, due to the line contact between the valve stem and the valve seat of the existing products, the sealing area is insufficient. After a long time of use, the valve stem and the valv...

Claims

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Application Information

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IPC IPC(8): F16K1/32F16K1/38F16K1/42F16K25/00F02B77/08
CPCF16K1/32F16K1/385F16K1/42F16K25/005F02B77/08
Inventor 吴文宗王勇魏守刚
Owner HUDONG HEAVY MACHINERY
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