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Method for controlling engine oil pre-supply before operation of diesel engine

A control method and technology for diesel engines, which are applied to machines/engines, control lubricant pressure, mechanical equipment, etc., can solve problems such as long pre-supply time, waste, and reduce diesel engine start-up efficiency, so as to improve start-up efficiency and reduce The effect of wasting resources

Active Publication Date: 2022-02-08
HENAN DIESEL ENGINE IND
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AI Technical Summary

Problems solved by technology

[0003] Commonly used oil pre-supply pumps are divided into DC pre-supply pumps and AC pre-supply pumps. DC pre-supply pumps belong to the short-time work system and cannot work with electricity for a long time
The AC pre-supply pump can work with electricity for a long time, but the single pre-supply time is relatively long, and the timing of its withdrawal is not controlled. Basically, the diesel engine is lubricated by simply controlling the pre-supply time. This pre-supply method causes Great waste and reduced diesel engine starting efficiency

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] see Figure 1-2 , the present invention provides a technical solution: first, the PLC module provides a DC24V power supply, and the signal of the oil pressure transmitter is input to the analog input port AI of the PLC. Pre-supply the working state of the pump and the starting motor, and drive the corresponding actuators to work in a timely manner.

[0018] When the current pre-supply time of the diesel engine is T>T1 and the oil pressure of the diesel...

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Abstract

The invention discloses an engine oil pre-supply control method before operation of a diesel engine, which comprises the following steps that an engine oil pressure signal is introduced into a PLC (Programmable Logic Controller) module, the real-time engine oil pressure of the diesel engine is monitored, different pressure interval sections are set to acquire comparison values according to the oil pressure required by the normal set of the diesel engine as a reference point, a pre-supply time comparison value is set according to the conventional pre-supply time of the diesel engine, the working state of engine oil pre-supply, the working state of a belt engine oil pump and the working state of a starting motor are determined by comparing the current pre-supply time with a pre-supply time comparison value and comparing the current oil pressure with a comparison value collected by a pressure interval end, the engine oil pre-supply working state, the machine belt engine oil pump state and the starting motor working state are determined, unnecessary resource waste is reduced, and the starting efficiency of the diesel engine is greatly improved.

Description

technical field [0001] The invention relates to the technical field of diesel engines, in particular to a method for controlling oil pre-supply before the operation of the diesel engine. Background technique [0002] Since its inception, the diesel engine has provided the driving force for various equipment in various fields with its advantages of safety and reliability. As one of its branches, high-speed and high-power diesel engines have become one of the indispensable equipment in various fields such as ships, marine engineering, and land-use power generation due to their advantages such as light weight, high power density, and quick start. Diesel generator sets refer to A power machine that uses diesel fuel as fuel and a diesel engine as a prime mover to drive a generator to generate electricity. For a new engine or a diesel engine that has been placed for a long time, due to the effect of gravity, the engine oil is mostly stored in the oil pan. In order to ensure the l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M1/02F01M1/16F01M1/20F01M11/00
CPCF01M1/02F01M1/16F01M1/20F01M11/00Y02T10/40
Inventor 曹寒夏梁国欣杨迅李丰王欢张永博
Owner HENAN DIESEL ENGINE IND
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