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Detection device

A detection device and detection part technology, applied in transmission control, transmission parts, fixed filter element filters, etc., can solve problems such as life reduction, gear or bearing damage, oil seal damage, etc.

Inactive Publication Date: 2020-11-03
ISUZU MOTORS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When such foreign matter is mixed into the lubricating oil, it may cause damage to gears, bearings, oil seals, etc., and may shorten their life.

Method used

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Experimental program
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no. 1 approach

[0031] figure 1 It is a schematic longitudinal sectional view of the power transmission device 10 provided with the detection device 100 of the first embodiment. As shown in the same drawing, the power transmission device 10 is, for example, a final drive device mounted on a rear two-axle drive vehicle having two drive shafts (rear front axle and rear rear axle) as rear axles. . In addition, the vehicle may be any of a rear one-axle drive vehicle, a front-wheel drive vehicle, a four-wheel drive vehicle, and the like. In addition, the power transmission device 10 is not limited to the final drive device, and may be another power transmission device such as a transfer device or a transmission.

[0032] Final drive 10 has a housing 11 . In the bottom 11A of the casing 11, lubricating oil (a schematic liquid level OL is shown by a dotted line in the figure) is stored as an example of a fluid. In addition, the final drive device 10 includes an input shaft 21 , an output shaft 2...

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Abstract

A detection device comprises: a strainer that is provided within a flow channel through which lubricating oil flow, that includes a filter member which lets through at least some of the lubricating oil and filters out foreign matter in the lubricating oil, and that is moved in the lubricating oil flowing direction along with the accumulation of foreign matter in the filter member; a stroke sensorthat senses movement of the strainer in the flowing direction; and a detection unit that detects the mixing of foreign matter in the lubricating oil on the basis of the strainer movement sensed by thestroke sensor.

Description

technical field [0001] The present disclosure relates to a detection device for detecting the incorporation of foreign matter in a fluid such as lubricating oil. Background technique [0002] In general, a vehicle is equipped with power transmission devices such as a final drive device, a transfer case, and a transmission. In these power transmission devices, lubricating oil for lubricating gears, bearings, and the like is encapsulated in a housing and circulated. [0003] In the power transmission device, gears and the like are worn, and foreign substances such as metal powder and broken pieces generated by the wear are mixed into the lubricating oil. When such foreign substances are mixed into the lubricating oil, they may cause damage to gears, bearings, oil seals, etc., and may shorten their life. [0004] For example, Patent Document 1 discloses a technique of removing foreign matter in the lubricating oil by attracting metal powder or the like mixed in the lubricatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04B01D35/143F16H61/12
CPCB01D35/1435B01D29/35B01D29/606F16H57/0404F16H57/0405F16H57/0436
Inventor 福田祐久多多良喜隆大野彰三
Owner ISUZU MOTORS LTD