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Auto-adjustable diesel water pump unit

An automatic adjustment, diesel engine technology, applied in the direction of engine cooling, engine components, machines/engines, etc., can solve the problems of exceeding the cooling system tolerance requirements, cooling water boiling, cooling water flow and low pressure, etc., to avoid cooling intensity Excessively large, the effect of rapid temperature rise and improved cooling efficiency

Active Publication Date: 2015-05-13
广西玉柴船电动力有限公司
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AI Technical Summary

Problems solved by technology

If the flow and head characteristics of the water pump are designed according to the high-speed section, that is, to meet the diesel engine calibration conditions (the power and speed are both maximum at this time), it is easy to cause the diesel engine to run for a long time under the condition of medium and low speed and high load. The flow rate and head of the diesel engine are small, the flow rate and pressure of the cooling water are relatively low, and the cooling capacity of the diesel engine cooling system is also low at this time, the temperature of the cooling water of the diesel engine is relatively high, and there is even a serious problem of boiling of the cooling water
[0003] When the flow rate and head characteristic capacity of the water pump are designed according to the medium and low speed range, it is easy to cause the diesel engine to run at high speed, the flow rate and head of the water pump are high, which exceeds the tolerance requirements of the cooling system
Therefore, the design of conventional diesel engine water pumps is difficult to take into account the high-speed and medium-low speed flow and head characteristics

Method used

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  • Auto-adjustable diesel water pump unit
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  • Auto-adjustable diesel water pump unit

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Embodiment Construction

[0033] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0034] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0035] Such as Figure 1 to Figure 3 Shown is an automatically adjustable water pump device for a diesel engine according to a specific embodiment of the present invention. The cooling water of the diesel engine has a large circulation system and a small circulation system. When the cooling water circulates, it needs to meet its temperature and pressure requirements. As a device that provides power for the cooling water of...

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Abstract

The invention discloses an auto-adjustable diesel water pump unit. A diesel engine is provided with a large circulation system and a small circulation system for cooling water. The auto-adjustable diesel water pump unit comprises a pump body; the pump body is provided with a pump water inlet and a pump water outlet; the pump water inlet is connected with a pump inflow pipe; the pump water outlet is connected with a pump outflow pipe; a first return water pipe is connected between the pump outflow pipe and the pump inflow pipe; the first return water pipe is provided with a temperature regulating valve; flow of the temperature regulating valve is controlled according to water temperature of the cooling water in the large circulation system of the diesel engine; when the water temperature of the cooling water in the large circulation system of the diesel engine rises to a set value, the temperature regulating valve closes. The auto-adjustable diesel water pump unit can automatically adjust according to the low-speed or high-speed requirements of the diesel engine.

Description

technical field [0001] The invention relates to the field of accessories for diesel engines, in particular to an automatically adjustable water pump device for diesel engines. Background technique [0002] As we all know, when a water-cooled diesel engine is working, a water pump is required to provide cooling water with a certain pressure and flow for the entire cooling system to cool diesel engine components such as cylinder liners, cylinder heads, oil coolers, and intercoolers. At present, the water pumps used in diesel engines are all centrifugal structure impellers and pump volute chambers. Because the water pumps are usually driven by the gear train of the diesel engine, the flow rate and head of the water pump are affected by the operating speed of the diesel engine. If the flow and head characteristics of the water pump are designed according to the high-speed section, that is, to meet the diesel engine calibration conditions (the power and speed are both maximum at ...

Claims

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Application Information

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IPC IPC(8): F01P5/10F01P7/16
CPCF01P5/10F01P7/16F01P2007/146
Inventor 沈捷李伟黄永仲王利民覃文
Owner 广西玉柴船电动力有限公司
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