Auxiliary device for low-pressure and low-temperature starting of diesel engine

A low-temperature starting and auxiliary device technology, which is used in the starting of the engine, the starting of the motor with the engine, the machine/engine, etc. Ensure smooth start and enhance the effect of discharge capacity

Inactive Publication Date: 2013-10-16
MILITARY TRANSPORTATION UNIV PLA
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high altitude (low atmospheric pressure), low oxygen content in the plateau area, large temperature difference between day and night, and long cold season, the intake air temperature and flow of the diesel engine will drop at the same time, causing the temperature and pressure at the compression end of the diesel engine cylinder to drop, resulting in Mixed gas and combustion conditions do not meet the ignition and continued combustion requirements of diesel engines
In addition, as the ambient temperature decreases, the output power of the battery also decreases accordingly (at -30°C, the rated out

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Auxiliary device for low-pressure and low-temperature starting of diesel engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The present invention will be further described below in conjunction with the accompanying drawings.

[0010] Such as figure 1 As shown, the system is mainly composed of a fuel heater, a lithium-ion battery module, a starter, a water inlet and return valve, a water temperature sensor, a pipeline, and a control unit; The first water inlet and return valve, the water outlet pipeline is connected to the water inlet end of the engine oil shell water jacket, the water outlet end of the engine oil shell water jacket is connected to the return water pipeline, the second water inlet and return valve and the water pump are set on the return water pipeline, and the control unit is connected to the water temperature sensor ; Lithium-ion battery module, starter and engine are connected in sequence.

[0011] The control unit ECU controls the start and stop of the fuel heater by detecting the coolant temperature signal. Before starting the diesel engine, the plateau type fuel heate...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an auxiliary device for low-pressure and low-temperature starting of a diesel engine. The auxiliary device comprises a fuel heater, a lithium ion storage battery module, a starter, a water inflow/return valve, a water temperature sensor and a control unit; the fuel heater is provided with a water outlet pipeline; the water outlet pipeline is provided with the water temperature sensor and a first water inflow/return valve and connected with the water inlet of an engine oil pan water jacket; the water outlet of the engine oil pan water jacket is connected with a water return pipeline; the water return pipeline is provided with a second water inflow/return valve and a water pump; the control unit is connected with the water temperature sensor; the lithium ion storage battery module, the starter and a motor are connected in sequence. The auxiliary device realizes hot starting of the diesel engine under low pressure and low temperature conditions, reduces the abrasion of the diesel engine during starting and prolongs the service life of the diesel engine.

Description

technical field [0001] The invention relates to the field of auxiliary equipment for diesel engines, in particular to a low-pressure and low-temperature start-up auxiliary device for diesel engines. Background technique [0002] The low-temperature starting performance of a diesel engine is one of the important performance indicators of a diesel engine. It is not only related to the working efficiency of the whole machine, but also affects its emission indicators, fuel consumption and service life. Due to the influence of dual factors (low air pressure and low temperature), the starting performance of the diesel engine is even worse under the plateau environmental conditions. In addition to optimizing the design of the diesel engine itself, the most important thing to improve the low-pressure and low-temperature starting performance of the diesel engine is to adopt low-temperature starting auxiliary measures. The fuel heater is a combustion heating device that works indepen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F02N11/00F02N19/02F02M31/16
Inventor 刘瑞林许翔董素荣孟军何西常周广猛刘刚
Owner MILITARY TRANSPORTATION UNIV PLA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products