Compression ratio plug structure for diesel cetane number measuring machine

A technology of cetane number and compression ratio, which is applied in the field of compression ratio plug structure of diesel cetane number measuring machine, can solve the problems of affecting the health of operators, polluting the operating environment, and heavy workload, and achieves compact structure and high security. Safe and healthy, easy to install and maintain
CN107218152APending Publication Date: 2017-09-29叢明
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
叢明
Publication Date
2017-09-29

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Abstract

The invention relates to a compression ratio plug structure for a diesel cetane number measuring machine. The structure comprises a compression ratio plug body which is of a thin-wall cup-shaped structure and internally provided with a cavity; a first annular rectangular slot arranged on the outer wall, close to the bottom, of the compression ratio plug body; and an annular sealing ring embedded in the first annular rectangular slot; and two annular check rings embedded in the first annular rectangular slot and located at both sides of the annular sealing ring respectively. The structure provided by the invention is compact in structure, and easy to install and maintain; by adopting a flexible sealing method, the sealing performance is optimal, so that no smoke is sprayed from a pre-combustion chamber, and the safety and health of operators are ensured; and a cetane number of a sample can be measured by the diesel cetane number measuring machine accurately and stably.
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Description

technical field

[0001] The invention relates to a compression ratio plug structure with sealing and variable compression ratio functions in a diesel engine, specifically a compression ratio plug structure applied to a diesel cetane number measuring machine, which has sealing, high temperature resistance and high pressure resistance specialty. Background technique

[0002] In the prior art, the compression ratio plugs used in diesel cetane number measuring machines are all made of elastic metal materials resistant to high temperature and high pressure, which can play the role of sealing and variable compression ratio. A hard seal method.

[0003] This kind of compression ratio plug requires very high processing accuracy for itself and the parts used with it; in addition, because a large amount of smoke will be sprayed out when the machine is warmed up, the environment in the laboratory is very harsh, and maintenance personnel need to have Rich experience, but also relativel...

Claims

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