JP2509031Y2 - Engine cylinder block reinforcement structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a structure of a reinforcing member provided in a lower block of a cylinder block.

(Prior Art) A reinforcing member is arranged below the cylinder block in order to reduce the propagation of engine vibration to the cylinder block.

As such a reinforcing member, there is one having a structure as shown in FIG. 3, for example. The reinforcing member 1 is arranged between a lower block 2 mounted below the cylinder block and an oil pan, and has a plate shape that covers the lower surface of the lower block 2. The plate-shaped reinforcing member 1 is provided with a plurality of oil return hole portions 3 for dropping return oil into the oil pan.

(Problems to be solved by the invention) However, in the reinforcing member 1 having such a structure, the plate-like reinforcing member 1 is provided with the oil return hole portion 3, so that the strength of the plate is weakened and the plate is insufficient. The reinforcing effect cannot be increased. In addition, the reinforcing member 1 itself may vibrate, which causes noise.

When returning the return oil from the oil return hole 3 into the oil pan in this way, the hole 3
Since the return oil drops from the oil pan into the oil pan, air is entrained in the oil and the quality of the oil deteriorates, which is not preferable.

Furthermore, since such a reinforcing structure does not have a function of suppressing the swing of the surface of the oil returned in the oil pan when the vehicle is turning, the baffle plate must be provided as a separate member to wind the air. There were some drawbacks, such as encouraging complications.

The present invention has been made in view of the above problems, and an object thereof is to provide a cylinder block reinforcing structure for an engine which has sufficient strength and can perform a rational function with respect to the structure of the cylinder block.

(Means for Solving the Problems) A cylinder block reinforcing structure of the present invention is a cylinder block reinforcing structure for an engine, in which a cylinder block reinforcing member is attached to a lower surface of the cylinder block, wherein the cylinder block reinforcing member has a plurality of openings. -Shaped partition wall portion and a part of the partition wall portion is formed by extending downward,
And a baffle plate for controlling the flow of oil.

(Operation) Since the cylinder block reinforcing structure of the engine of the present invention has the above-described structure, the lattice-shaped partition wall has a sufficient reinforcing function to prevent the propagation of engine vibration to the cylinder block. Further, since the reinforcing member itself is less likely to vibrate due to the structure of the partition wall, it is possible to prevent generation of noise due to the vibration of the reinforcing member.

Also, since the baffle plate is integrated with the reinforcing member and the oil that falls along the reinforcing member does not drop into the oil pan, it is possible to prevent air entrapment in the oil, and at the same time, this baffle plate prevents the oil from flowing inside the oil pan. Oil flow is also suppressed.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the cylinder block 10 has a bearing cap 11 having a structure similar to that of a general cylinder block.
A lower block 12 is disposed below the lower block 12, and an oil pan 13 that stores a return oil 18 is fixed below the lower block 12.
A lattice-shaped reinforcing member 14 is provided integrally with the lower block 12.

As shown in FIG. 2, the lower block 12 has a lattice-shaped partition wall 16 formed in a block main body 12a, in which a plurality of vertical walls 16a and horizontal walls 16b are stretched in parallel at substantially equal intervals. . The opening between the partition portions 16 is the cylinder block 11
Opening 15 for returning return oil from the oil pan 13 to the oil pan 13
Has become. The vertical wall 16a and the horizontal wall 16b are block main bodies.
It is extended downward from 12a and is projected. By disposing the extended portion as the baffle plate 17 in the oil pan 13, it is possible to suppress the flow of the oil 18 in the oil pan 13 and reduce the entrainment of air.

That is, by arranging the lattice-shaped reinforcing member 14 in the lower block 12 in this way, the strength of the reinforcing member 14 itself is increased, and like the conventional plate-shaped reinforcing member, engine vibration causes membrane vibration or the like. It is possible to prevent the vibration of the reinforcing member itself without causing the vibration.

Further, the oil returned from the opening 15 into the oil pan 13 moves downward along the vertical walls 16a and the horizontal walls 16b, and further passes through the baffle plate 17 to be accommodated in the oil pan 13, so that the oil falls. It is possible to prevent air from being entrapped in the oil due to falling of the rags.

(Effects of the Invention) The cylinder block reinforcing structure for an engine of the present invention has a reinforcing member composed of a lattice-shaped partition wall, and the lower portion of this reinforcing member functions as a baffle plate. Such a grid-shaped partition wall has high strength and can sufficiently reinforce the cylinder block. Furthermore, the lower part of this partition wall functions as a baffle plate to suppress the flow of oil in the oil pan and entrain air. By preventing this, the quality of the return oil can be maintained, and even when the return oil is stored in this oil pan, the return oil is guided through the reinforcing member into the oil pan, so that the oil return It is possible to prevent oil from being entrapped in air.

[Brief description of drawings]

 FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is a perspective view of the embodiment shown in FIG. 1, and FIG. 3 is a conventional general reinforcing structure. 10 …… Cylinder block, 14 …… Reinforcing member 15 …… Opening, 16 …… Partition wall 17 …… Baffle plate

Claims (1)

(57) [Scope of utility model registration request] 1. A cylinder block reinforcing structure for an engine in which a cylinder block reinforcing member is attached to a lower surface of a cylinder block, wherein the cylinder block reinforcing member has a grid-like partition wall portion having a plurality of openings, and a part of the partition wall portion. A cylinder block reinforcing structure for an engine, comprising a baffle plate that extends downward and suppresses oil flow.