Pipe joint cover

Abstract

Disclosed is a pipe joint cover (C) that covers a joint (U) of a high-pressure fuel pipe (61) of an engine, wherein one end of a cylindrical cover part (12A, 12B) is blocked by a blocking part (22A, 22B) having a pipe insertion hole (23). The blocking part (22A, 22B) has a seal part (26) where the inner circumference that forms the pipe insertion hole (23) adheres to the outer periphery of the high-pressure fuel pipe (61), and a receiving chamber (31) positioned on the outer side of the seal part (26), the bottom of which opens up to receive fuel that is sprayed from the joint (U). The bottomedge of the outer wall (28) of the reception chamber that forms the reception chamber (31) contacts the upper surface of the mounting nut (71) that constitutes the joint (U). Such a pipe joint cover can be easily installed, and can ensure that sprayed fuel is prevented from being dispersed to the surroundings.

Description

technical field [0001] The present invention relates to a pipe joint cover that covers a joint of a high-pressure fuel pipe so that, for example, fuel injected from the joint of a high-pressure fuel pipe of a diesel engine does not splash around. Background technique [0002] When fuel leaks from the junction of the high-pressure fuel pipe of the diesel engine, the fuel is sprayed in a high-temperature, high-pressure mist from between the high-pressure fuel pipe and the connecting piece (such as a nut) in one direction, which may cause a fire and is very dangerous. [0003] Therefore, there has been proposed a pipe joint cover that prevents fuel leaked from the joint of the high-pressure fuel pipe from splashing around and recovers the fuel leaked from the joint. [0004] The pipe joint cover consists of two protective elements forming a closed chamber in which the fuel leaked from the joint is enclosed, a discharge port provided on one of the two protective elements, and a ...

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned conventional pipe joint cover, since the sealing part for sealing the joint part of the high-pressure fuel pipe is provided so as to sandwich the joint part, the pipe joint cover cannot be installed on the high-pressure fuel pipe to avoid the high pressure. At the joint part of the fuel pipe, the pipe joint cover cannot be moved along the high-pressure fuel pipe, and the joint part of the high-pressure fuel pipe cannot be covered by the pipe joint cover.

[0007] Therefore, if a plurality of, for example, four (in the case of four cylinders), or six (in the case of six cylinders), or eight (in the case of eight cylinders) joints of high-pressure fuel pipes are close, it is difficult to install the pipe joint cover. In order to cover each joint, and the operation is troublesome

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