Diesel engine automatic preheating device

A technology of preheating device and diesel engine, which is applied in the heat treatment device of fuel, starting of engine, machine/engine, etc., can solve the problems of excessive structural installation size, difficulty in precise control, low preheating power, etc., and achieve ingenious installation position. Reasonable, reduce wear and tear, work smoothly and softly

Inactive Publication Date: 2015-12-09
东风朝阳朝柴动力有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flame preheating effect is better, but it has the disadvantage of complex and precise control; the electric preheating structure is simple but has the disadvantage of small preheating power
In addition, there is a fuel

Method used

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  • Diesel engine automatic preheating device
  • Diesel engine automatic preheating device
  • Diesel engine automatic preheating device

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Embodiment Construction

[0011] The structure and principle of the present invention will be further described below in conjunction with the accompanying drawings and through embodiments.

[0012] Diesel engine automatic preheating device, including: cylinder head water jacket, glow plug, water jacket heater, temperature sensor, thermostat body, grounding wire, preheating indicator light, controller, relay, starter, battery, generator and keyed doors etc. Its structural composition is as follows: a preheat plug 2 is installed at the lower left end of the cylinder head water jacket 1, a water jacket heater 3 is installed on the left end side wall of the cylinder head water jacket, and a water temperature sensor 4 is assembled in the small circulation of the thermostat body 5. in the waterway. The controller 8 is respectively connected to the power supply interfaces of the glow plug, the water jacket heater and the temperature sensor through the circuit harness.

[0013] The connection scheme of the c...

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Abstract

The invention discloses a diesel engine automatic preheating device. The structure of the diesel engine automatic preheating device is as follows: a glow plug and a jacket heater are respectively arranged on the left lower end and the left side wall of a cylinder cover jacket, and a water temperature sensor is assembled in a small circulating water path of a thermostat; a controller is connected respectively to power supply interfaces of the glow plug, the jacket heater and the temperature sensor through circuit wiring harnesses; the glow plug and the jacket heater jointly heat air entering a combustion chamber, the controller automatically judges the connection/disconnection and the heating time of the glow plug and the jacket heater according to a temperature signal output by the water temperature sensor, and the controller can automatically regulate the preheating time according to the temperature of an engine jacket, thereby automatically controlling the work states of the glow plug and the jacket heater. When a diesel engine is started at a low temperature, the work is stable and soft, the wear of engine components can be effectively reduced, and the service life of the engine is prolonged while fuel is saved. The device also has the advantages of being simple and convenient to mount, being safe and reliable, being convenient to maintain and being energy-saving.

Description

technical field [0001] The invention belongs to engine components, in particular to a device for automatically preheating a diesel engine at low temperature. Background technique [0002] Cold start performance is an important index to measure the technical level of diesel engines, and it is also one of the main factors that determine the scope of use of diesel engines. As we all know, when a diesel engine is started in winter or in a severe cold area, due to the increase of oil viscosity at low temperature, the rotation resistance of the engine crankshaft increases, resulting in a decrease in the starting speed. The low temperature will also vaporize or mix the fuel poorly, reduce the voltage of the battery, and increase the fuel consumption rate of the engine. Therefore, increasing the starting temperature has an important relationship with improving the performance of the engine. [0003] Generally, the preheating system of diesel engines mainly adopts low-temperature i...

Claims

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Application Information

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IPC IPC(8): F02N19/02F02M31/04
Inventor 张永胜胡志强刘向东陈玉荣
Owner 东风朝阳朝柴动力有限公司
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