Common rail type marine diesel injector

Abstract

The invention discloses a common-rail marine diesel injector which comprises a common-rail injector body, a clamping piece located at the lower end of the common-rail injector body and a reinforcing mechanism connected to the outer side of the common-rail injector body in a sleeving mode. The reinforcing mechanism comprises a shell, a horizontal guide rail, a clamping piece, a first channel and a second channel, wherein the shell is connected to the joint of the outer side of the common-rail oil injector body in a sleeving mode and provided with a through hole, the horizontal guide rail is arranged on the inner wall of the shell, and the clamping piece is in sliding connection with the horizontal guide rail and used for clamping and fixing the common-rail oil injector body. The driving piece is slidably sleeved with the second channel and used for driving the clamping piece to horizontally slide in the horizontal guide rail, and the first wedge rod is slidably sleeved with the first channel; according to the common rail type marine diesel engine fuel injector, supporting operation and double reinforcing operation of the reinforcing mechanism on the common rail fuel injector body are achieved, the service life of the common rail fuel injector body is guaranteed, and normal use of the common rail fuel injector is further guaranteed.

Description

technical field [0001] The invention relates to the technical field of diesel fuel injectors, in particular to a common rail type marine diesel fuel injector. Background technique [0002] Diesel engine is a kind of power machinery with wide application and high demand. It is widely used in marine field because of its high thermal efficiency, good economy, high reliability and wide power range. The characteristics of fuel injection rule, fuel injection timing, and circulating fuel injection volume are used in marine diesel engines, while existing diesel engine fuel injectors often use reinforcement equipment to reinforce the connection of diesel engine fuel injectors during use to avoid diesel engine fuel injection. However, the existing reinforcement equipment often has a single function, which does not meet the needs of modern diesel fuel injectors; and the existing reinforcement equipment is often clamped or reset by installing springs, but the use of springs can easily l...

AI Technical Summary

Problems solved by technology

[0002] Diesel engine is a kind of power machinery with wide application and high demand. It is widely used in marine field because of its high thermal efficiency, good economy, high reliability and wide power range. The common rail diesel engine injector has high injection pressure, Fuel injection rules, fuel injection timing, cycle fuel injection volume and other characteristics are used in marine diesel engines, while existing diesel engine injectors often use reinforcement equipment to reinforce the connection of diesel engine injectors during use to avoid diesel engine fuel injection. Injector deformation, but the existing reinforcement equipment often has a single function, which does not meet the use requirements of modern diesel engine injectors; and the existing reinforcement equipment is often clamped or reset by installing springs inside, but the use of springs can easily lead to elastic fatigue , thereby reducing the reinforcement effect of the diesel injector connection

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