JPH04137208U - Engine oil pan structure - Google Patents

Abstract

(57) [Summary] [Purpose] When the bottom of the oil pan is pushed up by force in a predetermined direction due to interference with the road surface while driving, the oil intake port of the oil strainer that opens toward the bottom of the oil pan gets blocked. to ensure prevention. [Structure] Bead portions 13 and 14 are provided on the bottom surface of the oil pan 1 at a location facing at least a portion of the oil suction port periphery 9a of the oil strainer 2, and the bead portions 13 and 14
is formed long in the longitudinal direction of the vehicle body.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

In this invention, an oil strainer is placed inside the oil pan, and its oil intake port is Regarding the engine oil pan structure, which opens downward facing the bottom of the pan. It is.

0002

[Conventional technology]

Traditionally, oil is filtered in the engine oil pan and guided to the oil pump. An oil strainer is installed to drain the oil, and the oil intake port of this oil strainer An oil pan that opens downward facing the bottom of the oil pan, located close to the bottom of the pan. The structure is generally known. With this type of oil pan structure, the oil pan is When the bottom of the oil pan interferes with the road surface, the bottom of the oil pan that is pushed upward will It may adhere to the oil intake port and block it, making it difficult to suck in oil.

0003 As a countermeasure to this problem, for example, as shown in Japanese Utility Model Application Publication No. 57-142148, A partition wall having a base and a partition is placed on the bottom of the oil pan, and this partition A bead is formed at the base of the wall, and the oil inlet of the oil strainer is opened above it. structure is known. According to this structure, the bottom of the oil pan is damaged due to interference with the road surface. When the surface is pushed up, the base of the partition wall with beads partially touches the oil intake port. Due to this contact, a gap is left between the oil suction port and the bottom of the oil pan.

0004

[Problem that the idea aims to solve]

By the way, in order to reduce the weight and simplify the structure of the oil pan, the beads mentioned above should be replaced with oil. It is preferable to form it directly on the bottom of the pan. However, in this case, the difference between the road surface and the When an external force is applied to the bead formation location due to interference, the direction in which the force is applied is If the strength of the bead is insufficient, cracks will occur. Also, due to interference with the road surface while driving, As the oil pan deforms, the bead tends to displace back and forth, and this displacement causes If the bead shifts from the oil suction port, it will not be able to prevent the oil suction port from clogging. Become.

[0005] In addition to problems caused by interference with the road surface, oil pumps may also be damaged during oil changes, etc. When draining the oil in the tank from the oil drain port, remove iron powder and cast iron that may be mixed into the oil. It is desirable to efficiently discharge foreign matter such as sand.

[0006] In view of these circumstances, the present invention was designed to prevent shocks in a predetermined direction due to interference with the road surface while driving. Reliably prevents the oil strainer's oil intake port from being blocked when the oil pan is deformed by force. This provides a structure that can be stopped. In addition, when there is interference with the road surface, the above-mentioned suction In addition to having the function of preventing the oil port from clogging, it also prevents it from getting mixed into the oil when draining the oil. This provides a structure that can enhance the effect of expelling foreign matter.

[0007]

[Means to solve the problem]

The first idea is that an oil strainer is placed inside the oil pan, and the oil strainer is placed inside the oil pan. The oil intake port of the engine is facing the bottom of the oil pan and opens downward. In the lupine structure, at least a part of the periphery of the oil intake port of the oil strainer is A bead portion is provided on the bottom of the oil pan at a location facing the front of the vehicle. It has a structure that is elongated in the rearward direction.

[0008] The second idea is that an oil strainer is placed inside the oil pan, and the oil strainer is placed inside the oil pan. The oil intake port of the engine is facing the bottom of the oil pan and opens downward. In the lupine structure, at least a part of the periphery of the oil intake port of the oil strainer is A bead portion protruding upward is provided on the bottom of the oil pan at a location facing the The structure has a structure in which the guard part is formed longer in the direction toward the area where the oil drain port is formed. This is what I did.

[0009]

[Effect]

According to the configuration of the first invention, the bottom surface of the oil pan is not pushed up due to interference with the road surface. When the oil suction port is closed, the bead portion prevents the oil suction port from being blocked. In particular, beads If interference occurs during driving due to the long section formed in the longitudinal direction of the vehicle body. The strength of the bead part is high against the force applied to the oil absorption port and the position of the bead part is Misalignment can be avoided.

0010 According to the configuration of the second aspect of the invention, the bead portion allows the bead to move upward when there is interference with the road surface. This has the effect of preventing the oil suction port from clogging, and also prevents the oil from being mixed with the oil when draining. Directs foreign objects such as iron powder flowing along the bottom of the oil pan toward the oil drain port. A flow effect can be obtained.

[0011]

【Example】

1 to 3 show an embodiment of the present invention, and in these figures, 1 indicates an oil pump. 2 is an oil strainer placed in the oil pan 1, and these are the oil strainers placed in the oil pan 1. It is attached to the lower end of the double lock 3. In this example, the series of the horizontal engine is An oil pan 1 is attached to the engine block 3. In other words, the engine of vehicle 4 The cylinder block 3 is arranged in the engine room so that the cylinder row direction is in the vehicle width direction. Correspondingly, the oil pan 1 is also arranged horizontally with respect to the vehicle body (see figure (see 2). F in the figure indicates the front side of the vehicle body.

0012 The oil strainer 2 has a pipe portion 5 and a strainer portion 6. . The upper end of the pipe portion 5 is attached to the cylinder block 3 via a mounting member 7. From here, a pipe portion 5 extends downward near the center of the oil pan 1, and a strip is attached to the tip of the pipe portion 5. A trainer part 6 is fixed. The strainer part 6 has an oil absorption port covered with a net. 9 is provided, and this oil suction port 9 is approximately parallel to the bottom surface of the oil pan 1 and at a predetermined interval therefrom. They face each other with their hands facing each other and open downward. And cylinder block 3 The oil in oil pan 1 is pumped by the operation of an oil pump (not shown) installed in The oil is led from the oil intake port 9 to the cylinder block 3 side via the pipe section 7, and is It is designed to be sucked into the pump.

[0013] The oil pan 1 has a flange portion 11 at the upper end of the peripheral portion, and this flange portion 1 1 is fastened to the cylinder block 3 with bolts. This oil spa Ribs 1 are provided at regular intervals in the width direction of the vehicle across the lower part of both the front and rear sides and the bottom surface. 2 is formed and faces at least a part of the peripheral edge 9a of the oil suction port 9. Bead portions 13 and 14 are formed on the bottom surface of the portion. In this example, there are two beads. The door portions 13 and 14 are arranged in series, and the oil suction port on the bottom surface of the oil pan 1 It is provided symmetrically with respect to the position corresponding to the center of 9.

[0014] Both bead portions 13 and 14 extend in the longitudinal direction of the vehicle body. In other words, in this example As shown, oil pan 1 is arranged horizontally with respect to the vehicle body, and the width direction of oil pan 1 is The bead portions 13 and 14 are long in the width direction of the oil pan 1 in the longitudinal direction of the vehicle body. It is formed. Furthermore, each bead portion 13, 14 has a shape that projects upward. Ru.

[0015] An oil drain port equipped with a drain cock 16 is located at the lower end of the side of the oil pan 1. 15 is formed. This oil drain port 15 is also located on the front side of the vehicle body of the oil pan 1. In other words, it is provided at the lower end of the rear side of the vehicle body. And the bead portion 13, The bead portions 13, 1 4 and the oil drain port 15 are set.

[0016] According to the structure of this embodiment, oil may occur due to interference with the road surface while driving, as shown in Figure 4. When the bottom of Lupin 1 is pushed up, the bead parts 13 and 14 are exposed to the oil. Partially contacts the oil suction port periphery 9a of the strainer 2, and the other portions of the oil suction port periphery A gap is left between 9a and the bottom surface of the oil pan 1. Therefore, the oil suction port 9 is blocked. This ensures that oil can flow from the oil inlet 9 into the pipe portion 5.

[0017] In particular, when there is interference with the road surface while the vehicle is running, it is important to Since the impact force acts diagonally upward and rearward, a long bead is formed in the vehicle width direction. If it is, an impact force acts on the corner of the long side and cracks are likely to occur, but in this example In the above structure, the bead portions 13 and 14 are formed long in the longitudinal direction of the vehicle body. The strength of the bead portions 13 and 14 is high against the impact force in the direction, and the occurrence of cracks is suppressed. Ru. Furthermore, as the oil pan 1 deforms due to the impact force, the bead portions 13 and 14 is displaced to some extent in the longitudinal direction of the vehicle body, but the bead portions 13 and 14 are long in this direction. In this case, the entire bead part does not shift from the area corresponding to the oil suction port periphery 9a. The bead portions 13 and 14 come into contact with the oil suction port periphery 9a to ensure the prevention of blockage. It will be done.

[0018] Also, when the oil in oil pan 1 is drained during oil change etc., When the drain cock 16 of the oil drain port 15 is opened, the inside of the oil pan 1 is Oil and foreign substances such as iron powder and foundry sand mixed in the oil are discharged from the oil drain port 15. However, in this case, the bead portions 13 and 14 are directed toward the vicinity of the oil drain port 15. By being long in the direction of the oil pan 1, the oil flowing along the bottom of the oil pan 1 is A rectifying effect is obtained to guide iron powder, etc. in the oil toward the oil drain port 15, and the iron powder, etc. etc. will be promoted.

[0019] Note that in order to prevent the oil suction port 9 from being blocked, the bead portions 13 and 14 must be moved downward. It may be formed into a protruding shape; in this case, interference with the road surface may occur. When the bottom of the oil pan 1 comes into close contact with the oil suction port 9, the recess created by the bead absorbs oil. The oil is located below the mouth periphery 9a, ensuring that oil flows into the oil suction port 9. . However, in order to have a rectifying effect on the drain port 15, as shown in the figure, It is necessary that the guard portions 13 and 14 have a shape that projects upward.

[0020] In addition, the shape, arrangement, etc. of the bead portion may be varied without departing from the gist of the present invention. Variations are possible, some examples of which are described below.

[0021] In the first embodiment described above, the two bead portions 13 and 14 are arranged in series. , these bead parts are made continuous to form one long bead part 23 as shown in FIG. You may. In this case as well, the direction in which the bead portion 23 is formed is the same as in the first embodiment. By doing so, the same effect can be obtained.

[0022] Moreover, as shown in FIG. 6, a structure in which two bead parts 33 and 34 are arranged in parallel is used. It's okay. That is, in this figure, each bead portion 33, 34 is located at the front of the vehicle body. It is formed long in the rear direction and corresponds to the center of the oil intake port 9 of the oil strainer 2. They are arranged parallel to each other on both sides of the vehicle width direction. These bead parts 33 , 34 and the oil drain port 15, the extension of both bead portions 33, 34 is The long line is set to pass through both sides of the oil drain port 15. Due to this structure In this case, the effect of preventing the oil suction port 9 from being blocked when the oil pan 1 interferes with the road surface can be obtained. At the same time, by making each of the bead portions 33 and 34 into a shape that protrudes upward, Therefore, a rectifying effect toward the oil drain port 15 can be obtained, especially in both bead portions 33, The direction of the flow of iron powder, etc. passing between 34 matches the oil drain port 15, and the above-mentioned rectification effect is achieved. is enhanced.

[0023] In addition, when the oil pan 1 is attached to the vehicle, such as when applied to a vertically mounted engine, When the bead portion 43 is arranged vertically, as shown in FIG. It is formed to be long in the length direction of the oil pan 1. Furthermore, in such a case, the rib portion 12 and the bead portion 43 are perpendicular to each other, and both ends of the bead portion 43 are connected to the rib portion 12. , these may be integrally formed. In this way, the bead portion 4 The rigidity of No. 3 is increased, which is advantageous in terms of strength.

[0024]

[Effect of the idea]

As described above, according to the invention according to claim 1, the area around the oil suction port of the oil strainer is A bead portion is provided on the bottom of the oil pan at a location opposite to at least a portion of the rim, and In addition, since the bead portion is formed long in the longitudinal direction of the vehicle body, the bottom surface of the oil pan is Prevents the oil suction port from being blocked when pushed up due to interference with the surface. In particular, the bead section can be has high strength, and the bead part does not shift from the oil absorption port. Therefore, the oil intake The reliability of the effect of preventing blockage can be increased.

[0025] Further, according to the invention as claimed in claim 2, the periphery of the oil suction port of the oil strainer is reduced. A bead part that protrudes upward is provided on the bottom of the oil pan at a location that is opposite to at least one part of the oil pan. and the bead portion is formed longer in the direction toward the vicinity of the oil drain port formation location. Although it has a simple structure, it prevents the oil intake port from clogging when it interferes with the road surface. and a rectification function to flow foreign matter in the oil to the oil drain port when draining the oil. can have.

[Brief explanation of drawings]

FIG. 1 is a plan view of a structure according to an embodiment of the present invention.

FIG. 2 is a schematic plan view showing the arrangement of an oil pan with respect to a vehicle.

FIG. 3 is a sectional view taken along line AA in FIG. 1;

FIG. 4 is an enlarged cross-sectional view of the main part at the time of interference with the road surface.

FIG. 5 is a sectional view showing another example of the arrangement of bead portions.

FIG. 6 is a sectional view showing still another example of the arrangement of bead portions.

FIG. 7 is a sectional view showing another example of the arrangement of bead portions.

[Explanation of symbols]

1 Oil pan 2 Oil strainer 9 Oil intake 9a Oil intake periphery 13, 14, 23, 33, 34, 43 Bead part 15 Oil drain port

Claims (2)

[Scope of utility model registration request] Claim 1: In an engine oil pan structure in which an oil strainer is disposed in an oil pan and an oil intake port of the oil strainer opens downward facing the bottom surface of the oil pan, the periphery of the oil intake port of the oil strainer is An oil pan structure for an engine, characterized in that a bead portion is provided on the bottom surface of the oil pan at least partially opposite to each other, and the bead portion is formed long in the longitudinal direction of a vehicle body. 2. An oil pan structure for an engine in which an oil strainer is disposed in an oil pan, and an oil intake port of the oil strainer opens downward facing the bottom surface of the oil pan, in which: An engine characterized in that a bead portion protruding upward is provided on the bottom surface of the oil pan at least partially opposite to the bottom surface of the oil pan, and the bead portion is formed to be elongated in the direction toward the vicinity of the oil drain port forming portion. Oil pan structure.