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Oil retaining amount determination device

A technology for judging device and oil storage capacity, which is applied in the direction of oil supply device, charging system, fuel system, etc., and can solve the problem of easy temperature change.

Inactive Publication Date: 2016-12-28
AISAN IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, if the thermistor is not immersed in oil under the condition that the low-temperature gas fuel flows into the discharge tank, the thermistor is exposed to the low-temperature gas fuel, so the temperature detected by the thermistor easy to change

Method used

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  • Oil retaining amount determination device
  • Oil retaining amount determination device
  • Oil retaining amount determination device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0040] Below, according to Figure 1 to Figure 5 An embodiment in which an oil storage amount judging device is realized will be described.

[0041] figure 1 The internal combustion engine 11 provided with the fuel reserve amount determination apparatus of this embodiment is shown in figure. The internal combustion engine 11 is a multi-fuel type internal combustion engine that can selectively use CNG (compressed natural gas) as an example of a gas fuel and gasoline as an example of another fuel different from the gas fuel.

[0042] Such as figure 1 As shown, the intake passage 12 of the internal combustion engine 11 is provided with an injector 14 for injecting CNG supplied from a gas fuel supply device 13 and an injector 51 for injecting gasoline supplied from a gasoline supply device 50 . Then, the combustion chamber 16 of the cylinder 15 burns a mixture containing fuel such as CNG, gasoline, and intake air, causing the piston 17 to reciprocate and the crankshaft, which...

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PUM

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Abstract

The invention provides an oil retaining amount determination device which can easily determine whether the oil reserve quantity is more than a specified amount. The oil retaining amount determination device comprises a collected-liquid tank(35), an element(36), a thermistor(41), and a control unit(25). The collected-liquid tank(35) is arranged in a supply line of CNG. The element(36) separates oil from the CNG that flows into the collected-liquid tank(35). The thermistor(41) is arranged in a downward direction from the element in the collected-liquid tank(35) and generates heat by being electrified. The control unit(25) determines whether the thermistor(41) is immersed in the oil based on change of a thermistor voltage at the time of electrification of the thermistor(41). The control unit performs the determination procedure when flow of the CNG in the supply line is stopped.

Description

technical field [0001] The present invention relates to a fuel storage amount judging device for judging whether or not the fuel storage amount in a tank arranged on a gas fuel supply path is equal to or greater than a predetermined amount. Background technique [0002] Patent Document 1 describes an example of an internal combustion engine operated by supplying a gaseous fuel such as CNG (compressed natural gas). Such a gas fuel supply system for an internal combustion engine is provided with a supply path for supplying the gas fuel to the injection valve and an oil separator for separating foreign substances such as oil from the gas fuel flowing through the supply path. [0003] Such an oil separator includes a discharge tank for storing foreign substances such as oil, and a separation unit provided in the discharge tank for separating foreign substances such as oil from gaseous fuel flowing into the discharge tank. In addition, a thermistor is provided below the separati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D19/02F02M21/02G01F23/24
CPCF02D19/028F02M21/0221F02B43/10F02D41/0025F02D41/0027F02D41/062F02M21/0215F02M21/0227Y02T10/30
Inventor 竹川翔一朗村瀬直
Owner AISAN IND CO LTD