Structure and adjustment method of a horizontal electromagnetic control valve

Abstract

The invention discloses a transverse-placing type electromagnetic control valve structure and regulation methods thereof. The transverse-placing type electromagnetic control valve structure comprises a valve seat (1), a route regulation block (2), an electromagnet (3), an armature (4), a control valve core (5), an end face seal ring (6), an electromagnet binding post (7), a compression screw (8), a groove seal ring (9), a return spring (10), a regulation gasket (11) and a spring seat (12). The regulation methods of the transverse-placing type electromagnetic control valve structure comprise a regulation method of the route of the control valve core (5), a regulation method of a gap between the armature (4) and the electromagnet (3), and a regulation method of pretightening force of the return spring (10). The transverse-placing type electromagnetic control valve structure and the regulation methods thereof are applied to a diesel engine electronic unit pump and have the advantages of high response speed, good sealing reliability, regulation convenience and the like.

Description

technical field [0001] The invention belongs to the technical field of power machinery and is used for an electronically controlled unit pump of a diesel engine, in particular to a structure of a horizontal electromagnetic control valve and an adjustment method thereof. Background technique [0002] The electromagnetic control valve controls the fuel supply and cut-off of the electronically controlled unit pump by controlling the closing and opening of the valve. It is the core component of the diesel engine electronically controlled unit pump. How to realize the quick response, high pressure sealing and convenient adjustment of the electromagnetic control valve , is the focus of electromagnetic control valve components and structural design. [0003] Conventional electronically controlled unit pump electromagnetic control valve includes 10 parts such as electromagnet, armature, compression screw (2 types), control valve core, valve seat, spring, spring seat (2 types), adjus...

AI Technical Summary

Problems solved by technology

[0004] First, the spring and spring seat are set on the control valve core, which not only increases the movement quality of the control valve, but also becomes a disadvantageous factor for improving the response speed of the control valve, and it is inconvenient to adjust the spring preload, which affects the convenience of adjusting the electromagnetic control valve ;

[0005] Second, the return seating surface of the control spool is relatively close to its high-pressure sealing part. When the control spool is closed and opened, the local deformation of the control spool is large, which is not conducive to the high-pressure sealing of the electromagnetic control valve and its parts. work reliability;

[0006] Third, the adjustment plug is assembled inside the control valve, which makes it inconvenient to adjust the stroke of the control spool

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