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Exhaust gas recirculation cooling water pump structure

A technology of exhaust gas recirculation and cooling water pump, applied in exhaust gas recirculation, pump, pump device and other directions, can solve the problem of unsatisfactory cooling effect of recirculated exhaust gas, achieve the effect of simple structure, meet emission regulations, and easy to use

Inactive Publication Date: 2013-11-27
JIANGSU SIDA POWER MECHANICAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the cooling water drawn from the water jacket of the cylinder block has cooled the cylinder block and liner of the diesel engine, the temperature is already very high (up to about 70°C), and the cooling effect on the recirculated exhaust gas is not very ideal

Method used

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  • Exhaust gas recirculation cooling water pump structure
  • Exhaust gas recirculation cooling water pump structure
  • Exhaust gas recirculation cooling water pump structure

Examples

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with specific examples.

[0013] The exhaust gas recirculation cooling water pump structure includes a diesel engine generator housing 1, a generator shaft 2 is rotatably installed in the diesel engine generator housing 1, and a diesel generator shaft 2 is fixed on the diesel engine generator housing 1 corresponding to the output end of the generator shaft 2. The water pump housing 3 is provided with a water inlet joint 4 and a water outlet joint 5 on the water pump housing 3, and a pump rotor 6 is arranged in the water pump housing 3, and the pump rotor 6 is coaxially fixed with the generator shaft 2, and The pump rotor 6 is provided with vanes 7 .

[0014] A water seal ring 8 is provided between the generator rotating shaft 2 and the housing 1 of the diesel engine generator.

[0015] An O-ring 9 is provided between the water pump housing 3 and the diesel generator housing 1 .

[0016] The present i...

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Abstract

The invention relates to an exhaust gas recirculation cooling water pump structure used by a diesel engine for discharge. The exhaust gas recirculation cooling water pump structure comprises a diesel engine generator shell body; a generator rotating shaft is rotatablely arranged in the diesel engine generator shell body; a water pump shell is fixed on the diesel engine generator shell body corresponding to an output end of the generator rotating shaft; the water pump shell is provided with a water inlet joint and a water outlet joint; the water pump shell is internally provided with a pump rotor; the pump rotor and the generator rotating shaft are fixed in a coaxial way; the pump rotor is provided with a blade. The exhaust gas recirculation cooling water pump structure utilizes a generator to drive a water pump, and an exhaust gas recirculation structure is cooled by directing diverting water from a water tank, so that the demand of cooling the exhaust gas can be met, NOx can be reduced, and the emission regulation can be met. The exhaust gas recirculation cooling water pump structure has the advantages of being simple and compact in structure, convenient to use and the like.

Description

technical field [0001] The invention relates to an exhaust gas recirculation cooling water pump structure which meets the requirement of a diesel engine for emission, and belongs to the technical field of diesel engines. Background technique [0002] Exhaust gas recirculation (EGR) technology is currently the first choice for reducing NOx emissions from vehicle diesel engines. Since the exhaust gas emitted by the diesel engine is an inert gas (has been burned, so it is a non-reactive gas), the mixture of intake air and recirculated exhaust gas will reduce the oxygen content of the mixture and reduce the heat capacity at the same time. This will reduce the maximum combustion temperature and NOx formation. However, if the recirculated exhaust gas is cooled and the EGR density is increased, the capacity conflict between the intake air and the exhaust gas can be minimized. [0003] Currently, exhaust gas recirculation cooling systems such as attached figure 1 As shown, the co...

Claims

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Application Information

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IPC IPC(8): F04D13/06F02M25/07F02M26/28
CPCY02T10/121Y02T10/12
Inventor 莫富林薛松黄敏勤
Owner JIANGSU SIDA POWER MECHANICAL GROUP
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