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Apparatus for precisely regulating intake temperature by water cooling

A technology of intake air temperature and water cooling, applied in temperature control, control/regulation system, non-electric variable control, etc., can solve problems such as combustion deterioration, ignition delay of diesel engines, etc., achieve improved performance, increase intake air temperature, and facilitate adjustment Effect

Inactive Publication Date: 2015-05-20
CHINA NORTH ENGINE INST TIANJIN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the ambient temperature is low, or the diesel engine is under low boost pressure conditions, the intercooler will over-cool the intake air, making the end-of-compression temperature of the diesel engine low, resulting in delayed ignition of the diesel engine and deterioration of combustion

Method used

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  • Apparatus for precisely regulating intake temperature by water cooling
  • Apparatus for precisely regulating intake temperature by water cooling

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Embodiment Construction

[0016] The present invention will be described in detail below according to the accompanying drawings and specific embodiments.

[0017] Such as figure 2 Shown, the present invention comprises compressor outlet pipe 1, intercooler 2, cooling water pipe 3, intake pipe, diesel engine, temperature sensor 6 and ECU5.

[0018] The inlet of the intercooler 2 communicates with the outlet pipe 1 of the compressor, the outlet communicates with the inlet of the intake pipe, and the water-cooling inlet of the intercooler 2 communicates with the outlet of the cooling water pipe 3 through a solenoid valve 4 to form the inlet of the diesel engine. gas channel.

[0019] A temperature sensor 6 is arranged in the intake pipe to detect the air temperature in the intake pipe, and the outlet of the intake pipe is connected to the intake port of the diesel engine to complete the intake transmission of the diesel engine.

[0020] The control end of the electromagnetic valve 4 is connected to the...

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Abstract

The invention provides an apparatus for precisely regulating intake temperature by water cooling. The apparatus comprises a compressor exhaust pipe, an intercooler, a cooling water pipe, an intake pipe, a diesel engine, a temperature sensor and an ECU (electronic control unit). An inlet of the intercooler is communicated with the compressor exhaust pipe; an outlet of the intercooler is communicated with an inlet of the intake pipe; a water cooling inlet of the intercooler is communicated with an outlet of the cooling water pipe through an electromagnetic valve; the temperature sensor is disposed within the intake pipe; an outlet of the intake pipe is connected to an intake hole of the diesel engine; the control end of the electromagnetic valve is in signal connection with the control signal output port of the ECU; the temperature sensor is in signal connection with a signal input port of the ECU. The apparatus according to the technical scheme has the advantages that the ECU and the electromagnetic valve are added, intake temperature of the diesel engine running in low-load condition at low ambient temperature is raised, performance of the diesel engine is improved, environmental adaptability of the diesel engine is improved and the apparatus is simple in structure and convenient to regulate.

Description

technical field [0001] The invention relates to the technical field of diesel engines, in particular to a water-cooled device for precisely adjusting intake air temperature. Background technique [0002] With the continuous improvement of diesel engine power requirements and increasingly stringent emission regulations, supercharged intercooling technology is widely used on diesel engines, the purpose of which is to increase the intake air charge and improve combustion performance. [0003] For a supercharged intercooled diesel engine, the flow rate of the fuel and air mixture entering the cylinder determines the power of the diesel engine, so the power can be increased by increasing the intake air density. [0004] The patent application with the application number 201010141298.X discloses an intake air temperature and pressure regulating device for a diesel engine, which includes an intake air temperature adjustment part and an intake air pressure adjustment valve; the inta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/20
Inventor 李耀宗刘艳利赵春生
Owner CHINA NORTH ENGINE INST TIANJIN
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