JP2011033013A - Engine oil inlet plug for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten oil discharge time in replacement of engine oil of an automobile. <P>SOLUTION: This engine oil inlet plug S for the automobile includes a chuck 7 for feeding pressure-regulated air to an inside of an engine from an oil inlet 5. Pressure of the compressed air of an air compressor installed in a garage is regulated by a pressure reducing valve on the market. Pressure of the inside of the engine is increased by feeding the air from the air chuck 7 attached to the engine oil inlet 5 to energize oil discharge from an oil drain part, and replacement work of the engine oil of the automobile is completed in a short period of time. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an oil filler plug for discharging engine oil of a general automobile in a short time.

Technical background

  Conventionally, the engine oil is discharged by natural discharge using the weight of the engine oil by removing the drain plug 2 provided in the oil pan 1 shown in FIG. Moreover, the discharge | emission by the suction using a negative pressure was also performed. In FIG. 3, 3 is an oil level gauge insertion port, 4 in FIG. 4, 4 is an engine oil injection port plug, 5 is an engine oil injection port, and 6 is a gasket for preventing oil from flowing out from the engine oil injection port. .

  In order to increase the new oil content after the engine oil change, it is necessary to drain the engine oil that has spread to each part inside the engine sufficiently. There was a problem of having.

  In the automobile maintenance industry, the rate of engine oil change work is very high while customers are waiting, and the time to drain all engine oil is a major obstacle to ensure reliable work. . Specifically, there are problems such as being unable to fully demonstrate engine oil performance by injecting new oil in a state in which old oil is not completely removed due to being chased by time, reducing the content of new oil. there were.

  As an improvement measure, there is a method of sucking engine oil using negative pressure. According to this method, the engine oil in the oil pan 1 can be sucked into the oil level gauge insertion port 3 for checking the engine oil amount shown in FIG. Even oil accumulated in the recess inside 1 can be sucked. For this reason, the new oil content is improved, but the diameter of the oil level gauge insertion port 3 is limited, so that there is a limit to the expansion of the tube inner diameter, and engine oil cannot be discharged in a short time. It was.

  An object of the present invention is to solve the above problems.

  An engine oil inlet plug provided by the present invention in order to solve the above problems is an engine oil inlet plug to be mounted on an engine oil inlet of an automobile, and is an air for feeding regulated air into the engine. A chuck is provided.

  According to the present invention, the compressed air of an air compressor installed in an automobile maintenance factory is regulated using a commercially available pressure reducing valve, and the air is fed into the engine from the air chuck of the present invention attached to the engine oil inlet. As a result, it is possible to increase the pressure inside the engine and increase the oil discharge from the oil drain portion, and to realize the engine oil change work of the automobile in a short time.

  FIG. 1 shows an engine oil inlet plug S according to an embodiment of the present invention. This engine oil inlet plug S has a structure in which an air chuck 7 is attached with nuts 8 and 9 in the center of the conventional engine oil inlet plug shown in FIG. ing. Further, a gasket 10 for maintaining the airtightness of the air chuck mounting portion is fixed with nuts 8 and 9 via a washer 11.

  FIG. 2 is a view in which the engine oil inlet plug S is attached to the engine oil inlet 5. A commercially available pressure reducing valve 12 that reduces the air pressure to 0.25 MPa is connected to the air chuck 7 by an air hose 14. An air compressor 13 and a pressure reducing valve 12 installed in the factory are also connected by an air hose 15.

  After removing the oil drain bolts in the same way as normal engine oil change, and then injecting air into the engine, the oil is expelled.

  If the internal pressure of the engine is increased excessively, the oil seal that holds the seal of each part of the engine will be damaged and cause oil leakage. Therefore, the pressure value inside the engine during normal use will be obtained. Table 1 shows the results.

  Since the engine internal pressure when the engine is stopped is atmospheric pressure, the engine oil inlet plug S shown in FIG. 1 is attached to the engine oil inlet 5 to determine the relationship between the pressure of the injected air and the engine internal pressure. Table 2 shows the results.

  The difference between the numerical values of the injected air pressure and the engine internal pressure value shown in Table 2 is due to the influence of the blow-by gas discharge passage provided in a general engine. The blow-by gas discharge passage is connected to an intake air passage generally led from an air cleaner to the engine to communicate with the atmosphere in order to re-burn unburned gas generated inside the engine. Moreover, the level of 0.98 kpa is a value that allows a person to breathe.

  Based on the above results, Table 3 shows the difference in oil discharge between when the engine oil is naturally discharged and when 0.25 MPa air is injected from the oil inlet.

  When the oil drainage state of the oil drain is confirmed, no oil spill is seen at point A in Table 3 after the air injection is stopped. However, in the case of an engine that has discharged naturally, thread-like oil spills at point B. The oil dripping continued after point C.

  By adopting such a system, engine oil can be discharged inside the engine in a short period of time, and the rotation rate of the factory work space can be improved, and the new oil content after engine oil replacement is also increased. There is an effect to fully demonstrate the performance of the oil.

  It is sectional drawing of the engine oil inlet plug of an Example.   It is a block diagram which shows the state which mounted | wore the vehicle with the engine oil inlet plug.   It is a block diagram of an engine.   It is sectional drawing of the conventional engine oil inlet plug.

Claims (1)

  An engine oil inlet plug characterized in that an air chuck is provided for sending regulated air into an engine from an engine oil inlet of an automobile.

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