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Lubricating system, engine and fault diagnosis method of lubricating system

A lubrication system and engine technology, which is applied in the direction of engine lubrication, engine components, machines/engines, etc., can solve problems such as high cost, unrecognizable oil filter, damage to engine reliability, etc., to reduce system cost and improve reliability effect

Inactive Publication Date: 2017-12-15
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during operation, when the oil filter is clogged, due to the existence of the bypass valve, the oil pressure and temperature in the main oil passage are still normal. Although the electronically controlled engine is equipped with a main oil passage temperature and pressure sensor, it still cannot be identified. Abnormal failure of the oil filter
Because the oil is not filtered, long-term operation seriously damages the reliability of the engine
In addition, due to the existence of two bypass valves in the lubrication system - the oil filter bypass valve and the oil cooling bypass valve, the cost of the system is relatively high

Method used

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  • Lubricating system, engine and fault diagnosis method of lubricating system
  • Lubricating system, engine and fault diagnosis method of lubricating system
  • Lubricating system, engine and fault diagnosis method of lubricating system

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Embodiment Construction

[0027] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0028] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be con...

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Abstract

The invention relates to the technical field of engines, and discloses a lubricating system and an engine with the lubricating system. The lubricating system comprises an oil pan, a suction filter, an oil pump, an oil filter, an oil cooler, a main oil gallery and a bypass oil gallery, wherein the oil pan, the suction filter, the oil pump, the oil filter, the oil cooler and the main oil gallery are connected in sequence through a pipeline, the bypass oil gallery communicates with an oil inlet of the oil filter and the main oil gallery, and a bypass valve is arranged on the bypass oil gallery. According to the lubricating system of the engine, when the oil filter and / or the oil cooler is plugged, oil getting out of the oil pump passes through the bypass oil gallery and directly enters the main oil gallery, therefore establishment of oil pressure of the main oil gallery are not affected, and lubrication of the engine still can be ensured; and in addition, one bypass oil gallery is only arranged, so that the system cost is reduced. The invention further discloses a fault diagnosis method of the lubricating system.

Description

technical field [0001] The present invention relates to the technical field of engines, in particular to an engine lubrication system and an engine including the above lubrication system; and also relates to a fault diagnosis method for the above lubrication system. Background technique [0002] The lubricating system of the current engine is mainly divided into the type of filtering first and then cooling and the type of cooling first and then filtering. In order to ensure that when the oil filter is clogged, the main oil passage can still obtain enough oil and maintain sufficient oil pressure, the oil filter needs to have a bypass oil passage. For the filter-then-cool type lubrication system, the oil bypassed by the oil filter flows into the main oil passage through the oil cooler. Through oil. However, during operation, when the oil filter is clogged, due to the existence of the bypass valve, the oil pressure and temperature in the main oil passage are still normal. Alt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M1/18F01M1/10F01M11/00
CPCF01M1/18F01M1/10F01M11/00F01M2250/00
Inventor 王贵琛秦伟李楠徐胜辉
Owner WEICHAI POWER CO LTD
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