Electromagnetic urea pump for diesel engine exhaust treatment
A diesel engine and exhaust gas treatment technology, applied in exhaust gas treatment, engine components, machines/engines, etc., can solve problems affecting the development of diesel automobile industry, etc., and achieve the effects of simple structure, small overall volume and convenient use.
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[0022] Such as figure 1 The shown electromagnetic urea pump for exhaust gas treatment of a diesel engine includes a housing 1, the rear end of which is provided with a rear cover 2, and the housing 1 and the rear cover 2 are connected by rear cover screws 18 to ensure that the housing 1 and the rear The installation stability between the covers 2 is also convenient for the assembly and maintenance of the urea pump; an inner cavity is formed between the shell 1 and the rear cover 2, and a push rod 6 is arranged in the inner cavity, and the outer surface of the push rod 6 The snare is provided with a base 7, and the push rod 6 is provided with an armature 8 abutting against the base 7 on the side of the base 7 facing the back cover 2, and the outer ring of the end of the armature 8 facing the side of the back cover 2 is provided with a The outwardly protruding step 81 creates a secondary magnetic circuit between the base 7, the outwardly protruding step 81 of the armature 8, and...
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