Engine air inlet and crankcase preheating combined system and preheating method thereof

A combined system and crankcase technology, applied in the directions of engine components, engine starting, machine/engine, etc., can solve the problems of difficult intake air temperature, reduced engine starting speed, small air contact area, etc., and achieve a favorable working environment. , The effect of maintaining the working environment and reducing the starting torque

Pending Publication Date: 2020-09-15
BEIJING GAOXIN GREAT FILTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in extremely cold regions, the air temperature in the cylinder is extremely low. If auxiliary heating measures are not used, the end-of-compression temperature in the engine cylinder cannot meet the requirements. Thermal resistance wire, etc., but the air intake preheating resistance wire has low heating power due to the power loss of the battery, and the contact area with the air is small, so it is difficult to increase the intake air temperature in a short time to meet the start-up requirements
In addition, at low temperature, the viscosity of the lubricating oil increases, and the frictional resistance between the moving parts of the engine increases. In addition, the low temperature causes the battery to lose power, and the power of the starter is insufficient, resulting in a decrease in the starting speed of the engine, making it difficult to start smoothly.

Method used

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  • Engine air inlet and crankcase preheating combined system and preheating method thereof
  • Engine air inlet and crankcase preheating combined system and preheating method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Such as figure 1 As shown, a combined engine air intake and crankcase preheating system includes a controller 6, a cold air preheating assembly and a common pipeline, and the outside air passes through two parallel pipelines after being heated up by the cold air preheating assembly The air heating device is electrically connected to the controller 6, and the controller 6 is connected to the battery on the vehicle to realize power supply.

[0030]The cold air preheating assembly is arranged as a split structure, including a burner 1, a heat exchanger 7, and a controller 6, the burner 1 is electrically connected to the controller 6, and the air outlet of the burner 1 4 communicate with the heat exchanger 7 through pipelines, and the heat exchanger 7 is respectively connected to the engine intake pipe 12 and the crankcase intake passage 18 on the crankcase 19 through two parallel pipelines on the heat exchanger outlet pipe 10 connected.

[0031] Specifically, the burner ...

Embodiment 2

[0043] Such as figure 2 As shown, the cold air preheating assembly is set as an integral structure, including a burner 1, a furnace 23, a gas chamber 24 and connecting pipelines, and one end of the burner 1 is provided with a power line 2, an air inlet 3 and The oil pipe 5, the other end of the power line 2 is connected to the battery on the vehicle to realize power supply, the air inlet 3 is connected to the air filter on the vehicle through a pipe, and the other end of the oil pipe 5 is connected to the fuel tank on the vehicle connected, the other end of the burner 1 protrudes into the furnace 23, and the gas cavity 24 is wrapped and arranged outside the furnace 23;

[0044] The furnace 23 is provided with an exhaust port 11, and the exhaust port 11 communicates with the outside air; the gas chamber 24 is provided with a heat exchanger inlet pipe 9, and the other end of the heat exchanger inlet pipe 9 is connected to the Fan 8 communicates, and the air inlet of described ...

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PUM

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Abstract

The invention discloses an engine air inlet and crankcase preheating combined system. The engine air inlet and crankcase preheating combined system comprises a controller, a cold air preheating assembly and pipelines for communication, wherein outside air is heated through the cold air preheating assembly and then input into an engine air inlet pipe and a crankcase air inlet channel in a crankcasethrough the two parallel pipelines; an air heating device is electrically connected with the controller; and the controller is connected with a storage battery on a vehicle to achieve power supply. The engine air inlet and crankcase preheating combined system is reasonable in structural layout, pipeline connection is smooth, and efficient preheating of engine air inlet and the crankcase is achieved through the design of a heat exchanger; and when an engine is started at a low temperature, the friction resistance between engine moving parts is reduced while the engine air inlet temperature isincreased, the initial starting torque is reduced, and the engine can be rapidly started.

Description

technical field [0001] The invention relates to the technical field of automobile power systems, in particular to an engine air intake and crankcase preheating combined system and a preheating method thereof. Background technique [0002] Two conditions need to be met for the engine to start smoothly. First, the compressed gas in the cylinder must reach the ignition temperature of the fuel, so that the fuel mixture can be ignited smoothly. Second, the engine speed must meet the set requirements. However, in extremely cold regions, the air temperature in the cylinder is extremely low. If auxiliary heating measures are not used, the end-of-compression temperature in the engine cylinder cannot meet the requirements. Thermal resistance wire, etc., but the air intake preheating resistance wire has low heating power due to the power loss of the battery, and the contact area with the air is small, so it is difficult to increase the intake air temperature in a short time to meet the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N19/04F02N19/02F02M31/08F02M35/10
CPCF02M31/042F02M31/08F02M35/10006F02M35/10157F02N19/001F02N19/02F02N19/04
Inventor 高品佳高志男刘涌庞华廷武振海严伟刘立东刘剑峰李志勇魏了杨少东郑丽红常丽魏伟刘琳
Owner BEIJING GAOXIN GREAT FILTER CO LTD
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