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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.

Pending Publication Date: 2017-12-29
浙江卡韦德新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing diesel engines must be equipped with an additional system to fully react urea and exhaust gas to meet emission standards in compliance with regulations; the urea discharge system requires a high-pressure, quantitative power source to inject urea into the exhaust pipe converter. The current technology cannot realize this function, thus affecting the development of the diesel automobile industry

Method used

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  • Electromagnetic urea pump for diesel engine exhaust treatment
  • Electromagnetic urea pump for diesel engine exhaust treatment
  • Electromagnetic urea pump for diesel engine exhaust treatment

Examples

Experimental program
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Effect test

Embodiment

[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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PUM

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Abstract

An electromagnetic urea pump for diesel engine exhaust treatment comprises a shell and a rear cover. An inner cavity is formed between the shell and the rear cover, a push rod is arranged in the inner cavity, the outer circle of the push rod is sleeved with a base, an armature and a spring, the portion between the base and the armature is sleeved with a wire frame and a varnished wire, the portion between the armature and the wire frame is sleeved with an embedding sleeve, and an electromagnet shell is arranged between the wire frame and the shell. A valve seat and a valve deck are arranged at the front end of the shell, two valve plates are arranged between the valve deck and the valve seat, and a water inlet and a water outlet are formed in the positions, corresponding to the two valve plates, of the valve deck. A membrane is arranged between the valve seat and the shell and provided with a first sealing line and a second sealing line. After the varnished wire is electrified, a main magnetic circuit is generated, so that the armature is made to drive the push rod to move, the push rod drives the membrane to reciprocate, and the process is repeated to continuous spray urea. Electromagnetic induction is adopted to drive the membrane to reciprocate, and the electromagnetic urea pump for diesel engine exhaust treatment has the advantages that the structure is simple, lubrication is not needed during membrane operation, the overall size is small, flow control is flexible, using is convenient, and cost is low.

Description

technical field [0001] The invention relates to the technical field of diesel engines, in particular to an electromagnetic urea pump for diesel engine tail gas treatment. Background technique [0002] Existing diesel engines must be equipped with an additional system to fully react urea and exhaust gas to meet emission standards in compliance with regulations; the urea discharge system requires a high-pressure, quantitative power source to inject urea into the exhaust pipe converter. The current technology cannot realize this function, thus affecting the development of the diesel automobile industry. Contents of the invention [0003] The purpose of the present invention is to solve the deficiencies of the prior art, and the present invention provides an electromagnetic urea pump for diesel engine tail gas treatment. [0004] The technical solution adopted by the present invention to solve the technical problem is: an electromagnetic urea pump for diesel engine exhaust ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B43/04F04B53/10
CPCF04B43/028F04B43/04F04B53/102F01N2610/1433F01N2610/02
Inventor 吴江华李成衡周明强乐林贵曾科梅富球
Owner 浙江卡韦德新能源科技有限公司
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