JP2010112329A - Baffle plate structure of vehicle engine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a baffle plate structure of a vehicle engine, achieving both prevention of an increase in resistance caused by agitation of lubricating oil by a crankshaft and suppression of mixing of bubbles into the lubricating oil. <P>SOLUTION: A movable member 44 of the baffle plate 4 arranged between the crankshaft 3 and an oil pan 1 is supported rotatably downward through a hinge member 42 having a shaft 41 extending in the axial direction of the crankshaft 3 on the upstream side of the crankshaft 3 in a rotating direction. A floating means floating the movable member 44 with respect to the oil level X of the lubricating oil stored in the oil pan 1 when the movable member 44 is rotated downward, is composed of the movable member 44 made of material having lower specific gravity than the lubricating oil. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a baffle plate structure for a vehicle engine provided between a crankshaft provided in a vehicle engine and an oil pan for storing lubricating oil supplied to each part in the vehicle engine. The present invention relates to measures for achieving both prevention of an increase in resistance due to agitation of crankshaft lubricating oil and suppression of bubbles in lubricating oil.

  Generally, the lubricating oil supplied to each part in the vehicle engine is stored in an oil pan provided in the lower part of the engine. The stored lubricating oil is pumped up by an oil pump, filtered and purified by an oil filter, and then supplied to each part in the engine again. A plate called a baffle plate is provided between the oil pan and the crankshaft to prevent the lubricating oil from shifting. Normally, the baffle plate is formed with a discharge hole for discharging lubricating oil dropped from above into the oil pan.

  Here, a part of the re-supplied lubricating oil is also used for hydraulic equipment provided in the engine, such as a lash adjuster. If bubbles (air) are mixed in the lubricating oil used in such a hydraulic device, abnormal behavior of the hydraulic device is induced. That is, a part of the lubricating oil stored in the oil pan is also supplied to the hydraulic equipment, but if bubbles are mixed in the lubricating oil, an abnormal behavior of the hydraulic equipment is caused. Therefore, it is desirable that bubbles (air) are not mixed in the lubricating oil stored in the oil pan as much as possible.

Therefore, in the conventional baffle plate structure, the lubricating oil falling on the top surface of the baffle plate and colliding with the collision wall before being dropped into the lubricating oil in the oil pan is separated by gas-liquid separation. There is known one that is returned to the oil pan in a state where bubbles in the oil are reduced (see, for example, Patent Document 1).
JP 2006-24307 A

  By the way, in the case where a baffle plate is provided between the oil pan and the crankshaft, the lubricating oil dropped on the upper surface of the baffle plate is discharged from the discharge hole, but when turning in a direction different from the discharge hole Or, during acceleration / deceleration, the lubricating oil accumulated on the upper surface of the baffle plate may not be smoothly discharged from the discharge hole and may be agitated in contact with the counterweight of the crankshaft. For this reason, the agitation of the lubricating oil by the crankshaft (counterweight) increases the resistance of the crankshaft and promotes the mixing of bubbles into the lubricating oil on the upper surface of the baffle plate.

  In addition, there is a height difference between the oil level of the lubricating oil stored in the oil pan and the baffle plate, so that the oil level of the lubricating oil in the oil pan undulates when turning or accelerating / decelerating. As a result, bubbles are likely to be mixed into this undulating lubricating oil.

  The present invention has been made in view of the above points, and the object of the present invention is to achieve both prevention of increase in resistance due to stirring of the lubricating oil of the crankshaft and suppression of bubble mixing in the lubricating oil. An object of the present invention is to provide a baffle plate structure for a vehicle engine.

  In order to achieve the above object, in the present invention, a vehicle engine provided between a crankshaft provided in the vehicle engine and an oil pan for storing lubricating oil supplied to each part in the vehicle engine. The baffle plate structure is assumed. The baffle plate is rotatably supported downward via a hinge member having an axis extending in the axial direction of the crankshaft on the upstream side in the rotation direction of the crankshaft. Further, the baffle plate is provided with floating means for floating the baffle plate with respect to the oil surface of the lubricating oil stored in the oil pan when the baffle plate is rotated downward.

  Due to this specific matter, the baffle plate is supported by a hinge member having a shaft extending in the axial direction of the crankshaft on the upstream side in the rotational direction of the crankshaft, so that the baffle plate falls on the upper surface of the baffle plate. The lubricating oil is smoothly oiled without being retained along the upper surface of the baffle plate positioned below as it goes to the downstream side in the rotational direction of the crankshaft while being guided by the rotating air directed downstream in the rotational direction of the crankshaft. Drained into bread. For this reason, even when turning or accelerating / decelerating, the lubricating oil dropped on the upper surface of the baffle plate can be smoothly discharged, and the lubricating oil on the upper surface of the baffle plate comes into contact with the counterweight of the crankshaft and is agitated. It is possible to reliably prevent an increase in the crankshaft resistance due to the stirring of the lubricating oil of the crankshaft (counterweight), and to prevent air bubbles from being mixed into the lubricating oil on the upper surface of the baffle plate. It becomes possible.

  Moreover, since the baffle plate is floating with respect to the oil level of the lubricating oil of the oil pan by the floating means when rotating downward, the oil level of the lubricating oil of the oil pan is pressed by the baffle plate, Even at the time of acceleration / deceleration and the like, large ripples on the oil surface of the oil in the oil pan can be smoothly suppressed. For this reason, the rolling-up of the lubricating oil onto the upper surface of the baffle plate due to the ripple of the lubricating oil in the oil pan is suppressed, and it is possible to smoothly prevent an increase in the resistance of the crankshaft due to the stirring of the lubricating oil in the crankshaft. It is possible to effectively prevent bubbles from being mixed into the lubricating oil due to the undulation of the lubricating oil.

  In particular, the following configurations are listed as specifying the floating means. That is, the floating means is formed by forming the baffle plate with a material having a specific gravity lighter than that of the lubricating oil.

  By this specific matter, it is possible to contribute to the weight reduction of the engine by reducing the weight of the baffle plate itself.

  On the other hand, when the floating means is provided with a float for floating the baffle plate, the existing baffle plate is used, and the versatility of the baffle plate can be achieved.

  In particular, the following configurations are listed as specifying the shape of the baffle plate. That is, the baffle plate is provided with a horizontal surface portion that is in contact with the oil surface of the lubricating oil stored in the oil pan when it is rotated downward.

  Due to this specific matter, the floating area of the baffle plate with respect to the oil surface is secured by the horizontal surface portion, the baffle plate is stably floated, and the oil surface of the oil oil in the oil pan is spread over the horizontal surface portion of the baffle plate. Even when turning or accelerating / decelerating, large ripples in the oil level of the lubricating oil in the oil pan can be suppressed more effectively. For this reason, it is possible to more effectively achieve both the prevention of the increase in resistance due to the agitation of the lubricating oil of the crankshaft and the suppression of the bubble mixing into the lubricating oil of the oil pan.

  In addition, when the baffle plate is provided with a rotation amount regulating means for regulating the downward rotation amount of the baffle plate, and the baffle plate is provided with a discharge hole for discharging the lubricating oil dropped on the upper surface of the baffle plate to the oil pan. Even if there is a risk of interference when the baffle plate is rotated downward due to a member protruding upward from the bottom of the oil pan or the shape of the oil pan, interference with these interferences However, it is avoided when the baffle plate is rotated downward by restricting the downward rotation amount of the baffle plate. In addition, since the baffle plate is rotated downward until the rotation amount is regulated by the rotation amount regulating means, even if the oil level of the oil in the oil pan cannot be pressed directly by the baffle plate, It is possible to partially suppress the standing lubricating oil, and a large wave of lubricating oil in the oil pan during turning or acceleration / deceleration can be smoothly suppressed. The baffle plate is provided with a discharge hole for discharging the lubricating oil dropped on the upper surface of the baffle plate to the oil pan, so that the lubricating oil dropped on the upper surface of the baffle plate is below the baffle plate regulated by the rotation amount regulating means. Even if all of the oil is not discharged by the rotation amount, the oil is smoothly discharged to the oil pan through the discharge hole, and the lubricating oil on the upper surface of the baffle plate does not come into contact with the counterweight of the crankshaft and is stirred.

  As a result, it is possible to prevent the increase of the resistance of the crankshaft due to the stirring of the lubricating oil of the crankshaft (counterweight) while suppressing the bubble from being mixed into the lubricating oil on the upper surface of the baffle plate. It is possible to effectively suppress the mixing of bubbles due to the undulation of the lubricating oil.

  In short, the baffle plate is supported so as to be rotatable downward via a hinge member having an axis extending in the axial direction of the crankshaft on the upstream side in the rotational direction of the crankshaft. By floating the oil pan against the oil level of the oil in the oil pan, the lubricant falling on the top surface of the baffle plate is guided smoothly by the rotating airflow of the crankshaft and does not stay along the top surface of the baffle plate. While discharging to the oil pan and smoothly turning or accelerating / decelerating, the lubricating oil dropped on the upper surface of the baffle plate is smoothly discharged, avoiding contact between the lubricating oil on the upper surface of the baffle plate and the crankshaft, On the baffle plate, the baffle plate suppresses the oil ripples of the oil pan. To prevent the crankshaft lubricating oil from agitating and to prevent the crankshaft from increasing in resistance, and to prevent air bubbles from entering the lubricating oil on the top surface of the baffle plate and the lubricating oil in the oil pan. Can be effectively achieved.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 shows an example in which a baffle plate structure according to Embodiment 1 of the present invention is applied to a vehicle engine. Reference numeral 1 denotes an oil pan attached to the lower side of a cylinder block E1 of the engine E. The pan 1 stores lubricating oil for lubricating various contact portions in the engine E. The oil pan 1 has a two-part structure comprising an upper side body 11 made of aluminum alloy and a lower side body 12 made of iron. The upper side main body 11 is attached to the lower surface of the cylinder block E1, while the lower side main body 12 is attached to the lower surface of the upper side main body 11.

  A crankshaft 3 that rotates in response to the reciprocating motion of the piston 2 is provided in the cylinder block E1 of the engine E so as to extend in the front-rear direction (the front-rear direction in the drawing). The crankshaft 3 includes a crank pin 31 to which the piston 2 is attached via a connecting rod 21, a crank journal 32 that is rotatably supported by a cylinder cap E1 via a bearing cap (not shown), and an overall weight. And a counterweight 33 for balancing.

  An upper chamber 111 is formed in the upper side main body 11 of the oil pan 1, and a lower chamber 121 is formed in the lower side main body 12. Further, an oil strainer (not shown) is provided in the lower chamber 121, and this oil strainer is provided such that its tip end (lower end) is always immersed in the lubricating oil. The base end (upper end) of the oil strainer is connected to an oil pump, and when the engine is operated, the oil pump is operated to suck in and pump up the lubricating oil stored in the lower chamber 121. Then, the lubricating oil used for lubricating, cooling and cleaning the various contact portions in the engine E flows down in the engine E and is stored in the oil pan 1 again.

  A baffle plate 4 is provided in the upper chamber 111. The baffle plate 4 is located between the crankshaft 3 and the oil pan 1. The baffle plate 4 has a plurality of hinge members as hinge members having shafts 41 extending in the axial direction of the crankshaft 3 at the upstream end in the rotational direction of the crankshaft 3 (right end in FIG. 1). 42 (only one is shown in the figure), a fixing member 43 for fixing one of the hinge members 42 to the lower surface of the cylinder block E1 (the lower surface at the upstream end in the rotational direction of the crankshaft 3), A flat plate-like movable member 44 attached to the other side and supported so as to be pivotable downward around an axis 41 of each hinge member 42 is provided. The movable member 44 extends in the axial direction of the crankshaft 3 so as to cover the crankshaft 3 from below, and has a hole (not shown) for avoiding interference with the oil strainer when rotated downward. is doing. The movable member 44 includes floating means 5 that floats the baffle plate 4 with respect to the oil surface X of the lubricating oil stored in the oil pan 1 when the movable member 44 is rotated downward. The floating means 5 is configured by forming the movable member 44 from a material having a specific gravity lower than that of the lubricating oil, for example, foamed NBR (nitrile butadiene rubber) or a steel frame having NBR attached thereto. . On the other hand, the fixing member 43 is formed of a steel plate.

  Further, the lower surface of the cylinder block E1 (the crankshaft 3 of the crankshaft 3) with which the tip of the movable member 44 that floats as the oil level X of the lubricant stored in the oil pan 1 rises (the downstream end in the rotational direction of the crankshaft 3) contacts. A rubber sheet material 45 is attached to the lower surface of the downstream end in the rotation direction, and a collision sound between the tip of the movable member 44 and the lower surface of the cylinder block E1 when the oil level X of the lubricating oil rises. Is to be reduced. Further, the movable member 44 is provided with a horizontal surface portion 441 that is in contact with the oil surface X of the lubricating oil stored in the oil pan 1 when it is rotated downward. In this case, the horizontal surface portion 441 is formed so as to be in contact with the oil surface X of the lubricating oil stored in the upper side main body 11 of the oil pan 1 substantially horizontally.

  Therefore, in the first embodiment, the movable member 44 of the baffle plate 4 is rotatable downward via the hinge member 42 having the shaft 41 extending in the axial direction of the crankshaft 3 on the upstream side in the rotational direction of the crankshaft 3. Since it is supported, the lubricating oil dropped on the upper surface of the baffle plate 4 is positioned downward as it goes to the downstream side in the rotational direction of the crankshaft 3 while being guided by the rotating air directed downstream in the rotational direction of the crankshaft 3. The oil is smoothly discharged to the oil pan 1 along the upper surface of the movable member 44 without staying. Therefore, even when turning or accelerating / decelerating, the lubricating oil dropped on the upper surface of the baffle plate 4 can be discharged smoothly, and the lubricating oil on the upper surface of the baffle plate 4 contacts the counterweight 33 of the crankshaft 3. Therefore, the increase in the resistance of the crankshaft 3 due to the agitation of the lubricating oil of the crankshaft 3 (counterweight 33) can be reliably prevented, and the bubbles in the lubricating oil on the upper surface of the baffle plate 4 can be prevented. Mixing can be suppressed.

  Further, the movable member 44 floats with respect to the oil surface X of the lubricating oil of the oil pan 1 by the floating means 5 formed of a material having a specific gravity lighter than that of the lubricating oil when the movable member 44 is rotated downward. In addition, since the horizontal surface portion 441 is in contact with the oil surface X of the lubricating oil of the oil pan 1 when rotating downward, the oil surface X of the lubricating oil of the oil pan 1 is It is held down by the horizontal surface portion 441 in a wide range, and large undulations of the oil surface X of the lubricating oil of the oil pan 1 can be smoothly suppressed even during turning or acceleration / deceleration. For this reason, the rolling-up of the lubricating oil onto the upper surface of the baffle plate 4 due to the ripple of the lubricating oil in the oil pan 1 is suppressed, and an increase in the resistance of the crankshaft 3 due to the stirring of the lubricating oil in the crankshaft 3 can be prevented smoothly. It is possible to effectively prevent air bubbles from being mixed into the lubricating oil due to the ripple of the lubricating oil in the oil pan 1.

  As a result, it is effective to prevent both the increase in the resistance of the crankshaft 3 due to the agitation of the lubricating oil of the crankshaft 3 and the suppression of bubbles in the lubricating oil on the upper surface of the baffle plate 4 and the lubricating oil of the oil pan 1. Can be aimed at.

  In addition, since the floating member 5 is formed of a material having a specific gravity lighter than that of the lubricating oil, the weight of the movable member 44 itself can contribute to the weight reduction of the engine.

  Next, a second embodiment of the present invention will be described with reference to FIG.

  In the second embodiment, the configuration of the floating means is changed. The rest of the configuration except for the floating means is the same as in the first embodiment, and the same parts are denoted by the same reference numerals and detailed description thereof is omitted.

  That is, in the second embodiment, as shown in FIG. 2, the floating means 6 is provided with a plurality of floats 61 (only one is shown in FIG. 2) for floating the movable member 44 of the baffle plate 4. Yes. As each of the floats 61, solid foamed NBR or stainless steel in a hollow capsule shape is applied. In this case, the existing member obtained by press-molding a relatively thin metal plate is applied as the movable member 44 ′ of the baffle plate 4.

  Further, the movable member 44 ′ is provided with a horizontal surface portion 441 ′ that is in contact with the oil level X of the lubricating oil stored in the oil pan 1 when it is rotated downward. And each float 61 is attached to the lower surface of the front end side (left end side in FIG. 2) of horizontal surface part 441 '. In this case, the horizontal surface portion 441 ′ is formed so as to be in contact with the oil surface X of the lubricating oil stored in the upper side main body 11 of the oil pan 1 substantially horizontally.

  Therefore, in the said Example 2, it can divert as it is, without changing material by providing the hinge member 42 in the existing baffle plate 4, and making it movable, and the versatility of the baffle plate 4 can be aimed at.

  Next, Embodiment 3 of the present invention will be described with reference to FIG.

  In the third embodiment, an oil level sensor is attached to the baffle plate. The rest of the configuration except for the oil level sensor is the same as in the first embodiment, and the same parts are denoted by the same reference numerals and detailed description thereof is omitted.

  That is, in the third embodiment, as shown in FIG. 3, a potentiometer 71 is attached to the lower end of the cylinder block E1 where the tip of the movable member 44 of the baffle plate 4 is located (the downstream end in the rotational direction of the crankshaft 3). It has been. The potentiometer 71 includes a rod 73 provided so as to be able to advance and retract downward from the lower surface of the substantially cylindrical main body 72, and the tip (lower end) of the rod 73 is in contact with the tip of the movable member 44 of the baffle plate 4. . The rod 73 moves forward and backward with respect to the main body 72 by contact with the tip of the movable member 44 that moves in the vertical direction as the lubricating oil in the oil pan 1 increases and decreases, and the amount of forward and backward movement of the rod 73 is determined by a potentiometer. By detecting by 71, the amount of lubricating oil in the oil pan 1 is detected. In this case, the potentiometer 71 is transmitted to control means (not shown) that controls the engine E by converting the amount of forward / backward movement of the rod 73 into an electrical signal.

  Therefore, in the third embodiment, the function of the oil level sensor is shared by the movable member 44 that moves in the vertical direction as the lubricating oil in the oil pan 1 increases or decreases, and the installation of a new oil level sensor is abolished. The number of parts can be reduced.

  Next, a fourth embodiment of the present invention will be described with reference to FIG.

  In the fourth embodiment, the configuration of the movable member of the baffle plate is changed. The other configurations except for the movable member are the same as those in the case of the first embodiment, and the same portions are denoted by the same reference numerals and detailed description thereof is omitted.

  In the fourth embodiment, there is a risk of interference when the movable member 46 of the baffle plate 4 is rotated downward due to a member protruding upward from the bottom of the oil pan 1 or the shape of the oil pan 1. Measures are taken in some cases. That is, as shown in FIG. 4, a rotation amount regulating means 8 that regulates the downward rotation amount of the movable member 46 of the baffle plate 4 is provided. The rotation restricting means 8 protrudes below the lower end of the cylinder block E1 where the tip of the movable member 46 of the baffle plate 4 is located (the downstream end in the rotation direction of the crankshaft 3), and the tip of the movable member 46 The guide rod 81 that is layered through the layer passage hole 460 provided in the portion and the lower end of the guide rod 81 are fixed to the lower end of the movable member 46, and the movable member 46 is rotated downward. And a rubber stopper 82 for regulating the amount of movement.

  In addition, a concave portion 461 that is recessed downward (on the oil pan 1 side) is provided substantially at the center of the movable member 46. At the end of the recess 461, that is, the downstream end in the rotation direction of the crankshaft 3 (the left end in FIG. 4), the lubricating oil that has dropped on the upper surface of the baffle plate 4 and accumulated in the recess 461 is moved to the oil pan 1 side. A plurality of discharge holes 462 (only one place is shown in FIG. 4) for discharging are provided. Also in this case, the movable member 46 includes the floating means 5 that floats the baffle plate 4 with respect to the oil surface X of the lubricating oil stored in the oil pan 1. The floating means 5 is configured by forming the movable member 46 from a material having a specific gravity lower than that of the lubricating oil, for example, foamed NBR (nitrile butadiene rubber) or a steel frame with NBR attached thereto. .

  Therefore, in the fourth embodiment, there is a possibility of interference when the movable member 46 is rotated downward due to a member protruding upward from the bottom of the oil pan 1 such as a wave shield or the shape of the oil pan 1. However, interference with these interfering objects is avoided when the movable member 46 is rotated downward by restricting the downward rotation amount of the movable member 46 by contact with the stopper 82. In addition, since the movable member 46 is rotated downward until the amount of rotation is restricted by contact with the stopper 82, the oil level X of the lubricating oil of the oil pan 1 is directly pressed by the movable member 46. Even if it is not possible, the undulating lubricating oil can be partially suppressed, and large undulations of the lubricating oil in the oil pan 1 during turning or acceleration / deceleration can be smoothly suppressed. And since the discharge hole 462 for discharging the lubricating oil dropped on the upper surface of the movable member 46 to the oil pan 1 is provided at the end of the recess (the end on the downstream side in the rotation direction of the crankshaft 3), the upper surface of the baffle plate Even if the lubricant oil that has fallen to the position is not completely discharged by the downward rotation amount of the movable member 46 restricted by the contact with the stopper 82, the lubricating oil is guided to the rotating wind directed downstream in the rotational direction of the crankshaft 3. However, the oil is smoothly discharged to the oil pan 1 through the discharge hole 462, and the lubricating oil on the upper surface of the movable member 46 does not come into contact with the counterweight 33 of the crankshaft 3 and is stirred.

  As a result, the increase in resistance of the crankshaft 3 due to the agitation of the lubricating oil of the crankshaft 3 (counterweight 33) can be reliably prevented, and mixing of bubbles into the lubricating oil on the upper surface of the movable member 46 can be suppressed. It is possible to effectively suppress the mixing of bubbles due to the undulation of the lubricating oil in the pan 1.

  In addition, this invention is not limited to said each Example, The other various modifications are included. For example, in each of the above embodiments, the movable members 44 and 46 are attached to the hinge member 42 fixed to the lower surface of the cylinder block E1 via the fixing member 43. However, the movable member is directly attached to the lower surface of the cylinder block by the hinge member. It may be done. Further, as shown in FIG. 5, a hole 44a is provided at the base end (right end in FIG. 5) of the movable member 44, and a ring member 49 (hinge member) inserted through the hole 44a is attached to the lower end of the cylinder block E1. Accordingly, the movable member 44 may be supported so as to be rotatable downward.

It is sectional drawing which cut | disconnected the engine which applied the baffle plate structure concerning Example 1 of this invention in the crankpin and crank journal vicinity. It is sectional drawing which cut | disconnected the engine which applied the baffle plate structure concerning Example 2 of this invention in the crankpin and crank journal vicinity. It is sectional drawing which cut | disconnected the engine which applied the baffle plate structure concerning Example 3 of this invention in the crankpin and crank journal vicinity. It is sectional drawing which cut | disconnected the engine which applied the baffle plate structure concerning Example 4 of this invention in the crankpin and crank journal vicinity. It is sectional drawing which cut | disconnected the engine which applied the baffle plate structure concerning the modification of an Example in the crankpin and crank journal vicinity.

Explanation of symbols

1 oil pan 3 crankshaft 4 baffle plate 41 shaft 42 hinge member (hinge member)
441, 441 '
Horizontal surface portion 462 Discharge hole 49 Ring member (hinge member)
5, 6 Floating means 61 Float 8 Rotation amount regulating means E Engine

Claims (5)

A baffle plate structure for a vehicle engine provided between a crankshaft provided in the vehicle engine and an oil pan for storing lubricating oil supplied to each part in the vehicle engine,
The baffle plate is
The crankshaft is rotatably supported downward via a hinge member having an axis extending in the axial direction of the crankshaft on the upstream side in the rotational direction of the crankshaft.
A baffle plate structure for a vehicular engine comprising floating means for floating the baffle plate with respect to an oil surface of lubricating oil stored in the oil pan when the baffle plate is rotated downward. The vehicle engine baffle plate structure according to claim 1,
The vehicle engine baffle plate structure according to claim 1, wherein the floating means is formed by forming the baffle plate from a material having a specific gravity lower than that of the lubricating oil. The vehicle engine baffle plate structure according to claim 1,
The vehicle engine baffle plate structure according to claim 1, wherein the floating means is provided with a float for floating the baffle plate. The baffle plate structure for a vehicle engine according to any one of claims 1 to 3,
A baffle plate structure for a vehicular engine, wherein the baffle plate is provided with a horizontal surface portion that is in contact with the oil surface of the lubricating oil stored in the oil pan when rotating downward. The vehicle engine baffle plate structure according to any one of claims 1 to 4,
A rotation amount regulating means for regulating a downward rotation amount of the baffle plate;
A baffle plate structure for a vehicle engine, wherein the baffle plate is provided with a discharge hole for discharging the lubricating oil dropped on the upper surface thereof to the oil pan.

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