JPH0536974Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to the structure of an oil pan buttful plate for an engine, and particularly relates to measures for improving the functionality of the buttfull plate.

(Prior Art) Generally, oil lubrication of an engine is performed by sucking oil stored in an oil pan upward through a suction pipe using an oil pump and supplying the oil to lubricated parts such as a crankshaft. In this case, it is known that a buff-full plate is provided above and near the oil surface of the oil pan to restrict the swinging of the oil. For example, in Utility Model Application Publication No. 59-1815, as shown in FIG. In order to avoid interference with the suction pipe c inclined in the through hole e, a through hole e is formed at the edge of the through hole e in the buttful plate b, which is continuous with the through hole e. A device in which a notch f is formed is disclosed.

(Problem to be solved by the invention) However, in the above-mentioned conventional buttful plate structure, since the cutout f is formed in the buttful plate b, the effective area of the buttfull plate b is reduced by that amount. There was a problem in that the swing regulating effect of the baffle plate b was impaired, and the original function of the buff full plate b was degraded.

Moreover, since the oil splashed from the crankshaft counterweight etc. from above the full plate b drips directly onto the oil surface through the notch f, the oil stored near the strainer b is foamed and This will allow a large amount of air to get mixed in. As a result, a problem arises in that the oil pump traps air through the strainer d, thereby reducing the suction function of the oil pump.

Furthermore, there was a problem in that the formation of the notch f also reduced the rigidity and strength of the buttful plate b.

Therefore, the purpose of the present invention is to increase the effective area of the buttful plate by making the through-hole edge of the buttful plate have a shape that can receive dripping oil without interfering with the suction pipe. In addition to improving the function of the buttful plate by increasing the effect of regulating the oil swing, by smoothly returning the dripping oil to the oil surface, the air that gets mixed into the stored oil is reduced, and the suction function of the oil pump is improved. In addition, the purpose is to improve the rigidity and strength of the buttful plate.

(Means for solving the problem) In order to achieve the above purpose, the solution of the present invention is as follows:
The present invention is based on an engine in which oil is stored in an oil pan, and the oil is sucked upward through a suction pipe by an oil pump and supplied to a lubricating section.

The oil pan is provided with a buttful plate that has a through hole through which the suction pipe and a strainer attached to the tip of the suction pipe pass, and that restricts the swing of the oil near the upper side of the oil surface of the oil pan. A concave portion is formed at the edge of the through hole of the buttful plate to correspond to the suction pipe that slopes in the through hole and slope downward toward the through hole to avoid interference with the suction pipe. , a rib is formed extending downward from the edge of the through hole of the recessed portion.

(Function) With the above configuration, in the present invention, even if the oil tries to swing, the swing of the oil is regulated by the baffle plate, and in particular, is effectively regulated by the concave portion at the edge of the through hole.

In addition, oil splashed from the crankshaft counterweight, etc., is caught and rectified by the upper surface of the concave portion, and then flows through the ribs formed at the edge of the through hole of the concave portion to the oil surface below. The flow returns smoothly.

In that case, a concave portion that does not interfere with the suction pipe is formed in the buttful plate, and the concave portion makes the effective area of the buttful plate larger than before, thereby increasing the effect of regulating oil swing. Therefore, it is possible to improve the original function of the Batsuful plate.

Furthermore, since a rib is formed that extends downward from the edge of the through-hole in the recessed part, oil returns smoothly, and the oil does not drip directly onto the oil surface as in the conventional case, but mixes into the stored oil. By reducing air, the suction function of the oil pump can be improved, and the stiffness and strength of the buttful plate can also be improved due to the reinforcing effect of these concave portions and ribs.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In FIGS. 1 to 3, 1 is an oil pan of an engine, and oil 2 is stored in the oil pan 1. As shown in FIGS. The oil 2 is sucked upward by an oil pump (not shown) through a suction pipe 3, and is supplied to lubricating parts such as a crankshaft to lubricate the engine.

At the tip of the sanction pipe 3, there is oil 2.
A strainer 4 is attached to remove impurities. Further, a bump-full plate 5 for regulating the swinging of the oil 2 is provided horizontally near the upper side of the oil surface k of the oil pan 1. The baffle plate 5 is integrally fixed to the oil pan 1 by welding a peripheral flange 6 to the oil pan 1, and a through hole 7 through which the suction pipe 3 and strainer 4 pass is formed approximately in the center thereof. This through hole 7 is provided to avoid interference between the bump-full plate 5 provided on the oil pan 1 and the strainer 4 and suction pipe 3 when the oil pan 1 is removed from the engine body. It is formed slightly larger than the diameter.

On the other hand, the suction pipe 3 is bent diagonally upward from the through hole 7 of the buttful plate 5 in order to avoid interference with a counterweight (not shown) located immediately above the through hole 7 of the buttful plate 5. A concave portion 8 is curved at the edge of the through hole 7 of the buffful plate 5 which extends and is located below the suction pipe 3 to avoid interference with the inclined suction pipe 3. There is. The recessed portion 8 is formed into a U-shape when viewed from above, and the open side of the U-shape slopes smoothly downward toward the through hole 7. A rib 9 is formed extending downward from the edge of the hole 7, and the rib 9 is formed in the shape of a brim along the edge of the through hole 7 and is in contact with the oil surface k below.

Note that 10, 10, . . . are notches on the peripheral edge of the buff-full plate 5, and each notch 10 allows the oil 2 adhering to the side wall of the oil pan 1 to flow down. Further, reference numeral 11 denotes a collar portion formed in a hanging shape at a portion of the periphery of the through hole 7 other than the rib 9, and is designed to improve the rigidity and strength of the periphery of the through hole 7 of the buttful plate 5.

Next, the function of this buffful plate 5 will be explained.

When the oil 2 attempts to oscillate due to changes in vehicle speed, etc., the oscillation of the oil 2 is regulated by the buff-full plate 5, and in particular, even at the edge of the through hole 7, it is reliably regulated by the concave portion 8. .

In other words, as shown in Fig. 1, the oil level is suppressed to m by increasing the effective area of the buttful plate 5 by using the concave portion 8, whereas the conventional oil level is m'. It is possible.

In addition, oil splashed from the counterweight of the crankshaft, etc. is caught at one end by the upper surface of the concave portion 8, and after being rectified, the oil is transmitted through the rib 9 formed at the edge of the through hole 7 of the concave portion 8 to the lower oil surface k.
The water will flow back smoothly.

Therefore, according to this embodiment, a recessed portion 8 that does not interfere with the suction pipe 3 is formed at the edge of the through hole 7 of the buttful plate 5, and the recessed portion 8
As a result, the effective area of the buff-full plate 5 is made larger than that of the conventional one, so that the effect of regulating the swinging of the oil 2 is enhanced, and the function of the buff-full plate 5 can be greatly improved.

In addition, the recessed portion 8 and the ribs 9 formed at the edges of the through hole 7 of the recessed portion 8 allow the oil to flow back smoothly, so that the oil does not drip directly onto the oil surface as in the conventional case. The suction function of the oil pump can be improved by reducing the amount of air mixed into the stored oil and preventing air from being trapped. In addition, the reinforcing effect obtained by the concave portions 8 and the ribs 9 also improves the strength of the tough plate 5.
It is also possible to improve the rigidity and strength of.

(Effect of the invention) As described above, according to the invention, a concave portion is formed at the edge of the through hole of the buttful plate to avoid interference with the suction pipe, and the effective area of the buttful plate is made larger than before by the concave portion. By increasing the value, the effect of regulating oil fluctuation is improved, and the function of the buttful plate can be significantly improved.

Furthermore, the recessed portion and the ribs formed on the edges of the through hole of the recessed portion allow for smooth return flow of oil, so that the oil does not drip directly onto the oil surface as in the past, but instead is stored. It is possible to improve the suction function of the oil pump by reducing air mixed into the oil.

In addition, since the recessed portion and the ribs provide a reinforcing effect, the rigidity and strength of the buttful plate can be improved, which is an excellent practical effect.

[Brief explanation of the drawing]

Figures 1 to 3 illustrate an embodiment of the present invention, where Figure 1 is a sectional view taken along the line I-I in Figure 2, Figure 2 is a plan view of the buttful plate, and Figure 3 is a view of the oil pan. FIG. FIG. 4 is a perspective view showing a conventional buff-full plate. DESCRIPTION OF SYMBOLS 1... Oil pan, 2... Oil, 3... Suction pipe, 4... Strainer, 5... Bumpful plate, 7... Through hole, 8... Concave portion, 9...
...rib, k...oil surface.

Claims (1)

[Scope of utility model registration request] In an engine in which oil is stored in an oil pan and the oil is sucked upward through a suction pipe by an oil pump and supplied to the lubricating parts, the oil is attached to the suction pipe and the tip of the suction pipe. The oil pan is provided with a buttful plate having a through hole through which the strainer passes, and which restricts the swing of the oil in the vicinity above the oil surface of the oil pan, and the edge of the through hole of the buttful plate is provided with a through hole that allows the strainer to pass through. Corresponding to the suction pipe that slopes in the hole, a recessed portion is formed that slopes downward toward the through hole to avoid interference with the suction pipe, and extends downward from the edge of the through hole of the recessed portion. The engine oil pan has a full plate structure characterized by the formation of ribs.