JP2017061894A - Oil suction structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oil suction structure capable of further suppressing the suction of air from an oil suction port.SOLUTION: The oil suction structure includes an oil pan for storing oil, the oil suction port opposed to the bottom face of the oil pan and arranged with a clearance between the bottom face and itself, a shielding member movably provided encircling the oil suction port, and a stopper part for restricting the moving range of the shielding member so that the outer peripheral face of the shielding member is not situated inside of the outer edge of the oil suction port.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an oil suction structure for sucking oil stored in an oil pan through an oil suction port.

  In a transmission or the like provided in a vehicle, the lubricity of gear meshing surfaces and other sliding portions is improved by circulating oil therein. Such oil is stored in an oil pan provided at the lower part of the transmission, and is sucked by an oil pump through an oil strainer. The sucked oil is filtered by a filter medium of an oil strainer and then discharged by an oil pump.

  When the vehicle acceleration changes, such as when the vehicle is accelerating, decelerating, or turning, or when the vehicle is tilted such as when traveling on a hill, the oil may be shifted to one side in the oil pan. At this time, if at least a part of the oil suction port of the oil strainer is exposed above the oil surface, air is sucked together with the oil, and the oil may not be discharged normally. In order to prevent air from being sucked from the oil suction port of the oil strainer even when the oil is deviated to one side, it is conceivable to increase the amount of oil filling the transmission. However, if the amount of oil filling is increased, resistance to gear rotation and oil scooping in the transmission increases, which may reduce rotational efficiency. Also, an increase in the oil filling amount can lead to an increase in the mass of the transmission and an increase in cost.

  For this reason, there has been proposed a technique that makes it difficult for the oil inlet of the oil strainer to be exposed above the oil level even when the oil is shifted to one side. For example, in Patent Document 1, an oil reservoir chamber in an oil pan is partitioned by a strainer chamber in which an oil strainer is disposed and a chamber adjacent to at least both sides of the strainer chamber, and a communication path is provided in the partition wall. There is disclosed an oil pan structure provided with an opening / closing body that opens a communication path only in a direction in which oil in each adjacent room flows into the strainer room.

  Further, Patent Document 2 includes a retractable valve seat in which a plurality of retractable members adjacent to each other through a slit are arranged in a truncated cone shape, and a root portion of the retractable member is connected to a fixing seat portion. Oil which is arranged so that the retractable valve seat is interposed between the oil pan and the oil strainer arranged in the oil pan and surrounds the intake port of the oil strainer by each of the collapsible members arranged in a truncated cone shape. An inhalation device is disclosed.

  Further, Patent Document 3 discloses an upper wall made of a magnetic material facing the bottom surface of the oil pan, an oil suction cylinder extending from the top wall toward the bottom surface of the oil pan, and a gap between the outer periphery of the oil suction cylinder. An oil storage device is disclosed that includes a cylindrical magnet disposed at the upper end and adsorbed on the upper wall.

Japanese Utility Model Publication No. 1-166205 JP 2002-181170 A JP 2008-280910 A

  However, the structure of the oil pan disclosed in Patent Documents 1 to 3 is configured so that when the oil in the oil pan is shifted to one side, the oil suction is performed only by increasing the height of the oil surface around the oil suction port. It is intended to prevent inhalation of air from the mouth. In each of Patent Documents 1 to 3, the oil inlet of the oil strainer and the opening / closing body, the retractable member, or the cylindrical magnet are provided apart from each other. For this reason, when the oil surface is located near the oil suction port due to the oil being shifted to one side, there is a possibility that air is drawn in and sucked in as the oil is sucked.

  Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide an oil suction structure capable of further suppressing air suction from the oil suction port. is there.

  In order to solve the above problems, according to one aspect of the present invention, an oil pan that stores oil, an oil suction port that is opposed to the bottom surface of the oil pan and is disposed with a gap between the bottom surface, A shielding member that is movably provided so as to surround the periphery of the oil suction port, and a stopper portion that regulates the movement range of the shielding member so that the position of the outer peripheral surface of the shielding member is not inside the outer edge of the oil suction port. An oil suction structure is provided.

  The oil suction port may be provided inside the cylinder portion extending toward the bottom surface, and the cylinder portion may constitute a stopper portion.

  The height of the shielding member may be larger than the width of the gap between the cylindrical portion and the bottom surface.

  The stopper portion may be a convex portion or a concave portion provided on the bottom surface.

  The oil suction port is an opening provided on the bottom surface of the oil strainer, the stopper portion is a convex portion provided on the bottom surface, and the height of the shielding member is such that the gap between the oil suction port and the bottom surface is It may be smaller than the width.

  The oil inlet is an opening provided in the bottom surface of the oil strainer, the stopper is a recess provided in the bottom surface, and the height of the shielding member is the width of the gap between the oil inlet and the bottom surface. May be larger.

  The shape of the outer periphery of the stopper portion and the shape of the inner periphery of the shielding member may be similar.

  As described above, according to the present invention, it is possible to provide an oil suction structure that can further suppress the suction of air from the oil suction port.

It is a fragmentary sectional view showing the composition of the oil suction structure concerning a 1st embodiment of the present invention. It is explanatory drawing which shows the oil inlet and the shielding member of the oil suction structure concerning the embodiment. It is explanatory drawing which shows a mode that air is suck | inhaled from the oil inlet in the conventional oil suction structure. It is explanatory drawing which shows the state where the oil was shifted to one side. It is explanatory drawing which shows the oil inlet and the shielding member in the state where oil deviated to one side. It is a fragmentary sectional view which shows the structure of the oil suction structure concerning the 2nd Embodiment of this invention. It is explanatory drawing which shows the state where the oil was shifted to one side. It is a fragmentary sectional view showing the composition of the oil suction structure concerning the modification of the embodiment. It is explanatory drawing which shows the state where the oil was shifted to one side.

  Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

<First Embodiment>
(overall structure)
With reference to FIGS. 1-2, the structure of the oil suction structure 10 concerning 1st Embodiment is demonstrated. FIG. 1 is a partial cross-sectional view of an oil suction structure 10 according to this embodiment. FIG. 2 is a schematic view of the oil suction port 24 and the shielding member 30 of the oil suction structure 10 according to the present embodiment as viewed in the vertical direction.

  In FIG. 1, an oil suction structure 10 can be applied to, for example, an automatic transmission mounted on a vehicle, and includes an oil pan 14, an oil strainer 20, and a shielding member 30. The oil pan 14 has an upper surface opened and a lower surface closed, so that the oil 8 can be stored therein. The oil pan 14 is attached to the bottom of an automatic transmission case (not shown) with a bolt or the like.

  The oil strainer 20 is disposed in the oil pan 14. The oil strainer 20 has, for example, a filter (not shown) that is formed in a hollow shape and is disposed at the center so as to divide the inside vertically. The filter is formed of, for example, a mesh or a nonwoven fabric. A cylindrical portion 28 that protrudes downward is provided at the bottom of the oil strainer 20. The front end (lower end) of the cylindrical portion 28 is opened, and an oil suction port 24 is formed. The size and shape of the oil suction port 24 are set to an appropriate size and shape according to the position of the oil suction port 24 in the oil pan 14, the direction of deviation of the oil level O for each vehicle, and the like. . In FIG. 2, the shape of the oil suction port 24 is shown as a perfect circle, but may be an ellipse, a rectangle, a rounded rectangle, or other irregular shapes.

  The oil suction port 24 faces the bottom surface 14 a of the oil pan 14 and is disposed with a gap between the oil suction port 24 and the bottom surface 14 a of the oil pan 14. An oil outlet (not shown) is formed in the upper part of the oil strainer 20. The oil outlet is connected to the suction port of the oil pump 5, and the oil 8 stored in the oil pan 14 is sucked from the oil suction port 24 of the oil strainer 20 when the oil pump 5 is operated. The sucked oil 8 is filtered by a filter to remove foreign matters such as metal powder and dust, and then supplied from the oil pump 5 to each part in the automatic transmission through an oil outlet.

  The shielding member 30 is disposed on the bottom surface 14a of the oil pan 14 so as to be movable on the bottom surface 14a. In the present embodiment, the shielding member 30 has a cylindrical shape that is similar to the shape of the outer periphery of the cylindrical portion 28 of the oil strainer 20 (see FIG. 2). Specifically, the shape of the outer periphery of the oil strainer 20 and the shape of the inner periphery of the shielding member 30 are similar. The shielding member 30 can be formed of various materials including metal and resin.

  The height (axial length) h1 of the shielding member 30 is smaller than the distance h2 between the bottom of the oil strainer 20 and the bottom surface 14a of the oil pan 14. Therefore, the oil 8 that flows into the oil pan 14 from the periphery of the oil strainer 20 can also enter the shielding member 30. The size of the gap between the upper part of the shielding member 30 and the bottom part of the oil strainer 20 is set so that the resistance to the flow of the oil 8 does not increase, and the load on the oil pump 5 does not increase.

  Further, the height h1 of the shielding member 30 is larger than the distance h3 between the lower end of the cylindrical portion 28 and the bottom surface 14a of the oil pan 14. Thus, the lower end of the cylinder portion 28 of the oil strainer 20 enters the opening of the shielding member 30, and the shielding member 30 is provided so as to surround the oil suction port 24. For this reason, the movement range of the shielding member 30 movably disposed on the bottom surface 14 a of the oil pan 14 is regulated by the cylindrical portion 28 of the oil strainer 20. The movement range of the shielding member 30 is restricted by the cylindrical portion 28 entering the inside, so that the position of the outer peripheral surface of the shielding member 30 is not inward of the outer edge of the oil suction port 24. . Therefore, the cylinder portion 28 of the oil strainer 20 has a function as a stopper portion that restricts the movement range of the shielding member 30.

  As for the distance d1 between the inner peripheral surface of the shielding member 30 and the outer peripheral surface of the cylinder portion 28 of the oil strainer 20, the oil 8 flowing into the oil pan 14 from the periphery of the oil strainer 20 also enters the shielding member 30. Is set as appropriate. The distance d1 is set so that the resistance to the flow of the oil 8 does not increase, so that the load of the oil pump 5 does not increase.

  The shielding member 30 moves along the direction of acceleration or inclination together with the oil 8 along with the change in the acceleration of the vehicle or the inclination of the vehicle, and is locked to the cylindrical portion 28 of the oil strainer 20. At this time, the shielding member 30 is locked to the cylindrical portion 28 at a position opposite to the direction in which the oil 8 is offset. Thereby, as will be described later, the suction of air from the oil suction port 24 can be suppressed.

  The shape of the shielding member 30 is not limited to a cylindrical shape, and may be a cylindrical shape having a polygonal cross section. Further, the shape of the inner periphery of the shielding member 30 may be different from the shape of the outer periphery of the cylindrical portion 28 of the oil strainer 20. However, it is preferable that the shape of the inner periphery of the shielding member 30 and the shape of the outer periphery of the cylindrical portion 28 of the oil strainer 20 have a similar shape. Since these are similar to each other, the inner peripheral surface of the shielding member 30 is positioned in the direction opposite to the direction in which the oil 8 is offset, regardless of the direction in which the oil 8 is offset. It is possible to prevent the air from being sucked from the oil suction port 24.

(Function)
Next, the operation of the oil suction structure 10 according to the present embodiment will be described with reference to FIGS. FIG. 3 shows a state in which air is sucked from an oil suction port in a conventional oil suction structure. FIG. 4 shows a state where the oil 8 is shifted to one side (right side in FIG. 4) in the oil pan 14 in the oil suction structure of the present embodiment. FIG. 5 is a schematic view of the oil inlet 24 and the shielding member 30 of the oil strainer 20 shown in FIG.

  As shown in FIG. 3, in the conventional oil suction structure in which the shielding member is not provided, when air is sucked into the oil suction port 24 from the direction opposite to the direction in which the oil is offset, the air flows through the oil suction port 24. In the vicinity, the oil 8 flows in a direction along the side of the oil 8 and flows into the oil suction port 24.

  As shown in FIG. 4, in the oil suction structure 10 according to the present embodiment, the shielding member 30 is movably provided on the bottom surface 14 a of the oil pan 14. Accordingly, when the oil 8 is shifted to one side, the shielding member 30 also moves in the same direction. When the shielding member 30 moves in the direction closer to the oil 8, the shielding member 30 is locked to the cylinder portion 28 of the oil strainer 20 at a position in the opposite direction to the direction closer to the oil 8. At this time, the oil suction port 24 is covered with the shielding member 30 at the locking position. In the example shown in FIG. 4, the shielding member 30 and the tubular portion 28 are in contact with each other with the width of the tubular portion 28 entering the opening inside the shielding member 30.

  Then, at the position where the shielding member 30 and the cylindrical portion 28 are in contact with each other, the air flow toward the oil suction port 24 along the direction toward the oil 8 is easily blocked. As described above, the air flow along the direction toward the side of the oil 8 is blocked, so that the air hardly flows into the oil suction port 24. That is, in the oil suction structure 10 according to the present embodiment, the oil suction port is not operated by increasing the oil level O around the oil suction port 24 but by blocking the flow of air toward the oil suction port 24. Inhalation of air from 24 is suppressed. Further, since the shielding member 30 has a cylindrical shape and a gap is formed at a position other than the position where the shielding member 30 and the cylindrical portion 28 are in contact with each other, the shielding member 30 does not block the oil suction port 24 and the oil A route for inhaling 8 is secured.

  Here, the state in which the oil 8 is offset to the right side has been described, but the same action can occur even when the oil 8 is offset in the other direction. In particular, in the oil suction structure 10 according to the present embodiment, the shielding member 30 and the cylindrical portion 28 that functions as a stopper that restricts the movement range of the shielding member 30 are both rounded, and the inner circumference of the shielding member 30 is The shape and the shape of the outer periphery of the cylindrical portion 28 are similar to each other. Therefore, even if the oil 8 is offset in any direction in the horizontal direction, the shielding member 30 moves in a direction closer to the oil 8 and is engaged with the cylinder portion 28 at a position opposite to the moving direction. Stopped. Thereby, the oil suction structure 10 according to the present embodiment can suppress the suction of air into the oil suction port 24 regardless of the direction of the oil 8 toward the side.

(Summary)
As described above, the oil suction structure 10 according to the present embodiment includes the shielding member 30 provided so as to be movable on the bottom surface 14 a of the oil pan 14 so as to surround the oil suction port 24 of the oil strainer 20. The moving range of the shielding member 30 is restricted by the cylinder portion 28 of the oil strainer 20 so that the position of the outer peripheral surface of the shielding member 30 is not inside the outer edge of the oil suction port 24. Therefore, when the oil 8 is shifted to one side, the oil suction port 24 is covered by the shielding member 30 at a position opposite to the direction of the oil 8, and passes through the shortest path to the oil suction port 24. The flow of air that can flow can be blocked. Thereby, the suction of air from the oil suction port 24 can be suppressed without increasing the filling amount of the oil 8 into the automatic transmission or the like. As a result, it is possible to reduce a decrease in rotational efficiency and an increase in mass or cost of the automatic transmission.

  Further, in the oil suction structure 10 according to the present embodiment, the shape of the inner periphery of the shielding member 30 is similar to the shape of the outer periphery of the cylindrical portion 28 of the oil strainer 20 that functions as a stopper that restricts the movement range of the shielding member 30. Form. Therefore, regardless of the direction of the oil 8, the shielding member 30 moves in the direction of the oil 8 and blocks the flow of air that can flow to the oil suction port 24 through the shortest path. Inhalation of air from 24 can be suppressed.

<Second Embodiment>
Next, an oil suction structure according to a second embodiment will be described. In the following description, the difference from the oil suction structure according to the first embodiment will be mainly described, and unless otherwise specified, the configuration is the same as that of the oil suction structure according to the first embodiment. be able to.

  FIG. 6 is a partial cross-sectional view of the oil suction structure 50 according to the present embodiment. In the oil suction structure 50 according to the present embodiment, the oil suction port 64 of the oil strainer 60 includes an opening provided on the bottom surface of the oil strainer 60. In FIG. 6, the outer edge of the oil suction port 64 is indicated by a broken line at the bottom of the oil strainer 60. The oil suction port 64 faces the bottom surface 14 a of the oil pan 14 and is disposed with a gap between the oil suction port 64 and the bottom surface 14 a of the oil pan 14.

  The shielding member 80 is disposed on the bottom surface 14a of the oil pan 14 so as to be movable on the bottom surface 14a. In the present embodiment, the oil suction port 64 of the oil strainer 60 is formed in a perfect circle, and the shielding member 80 has a cylindrical shape that is similar to the oil suction port 64. The height of the shielding member 80 is slightly smaller than the distance between the bottom of the oil strainer 60 and the bottom surface 14 a of the oil pan 14. Specifically, the gap between the oil strainer 60 and the shielding member 80 is as much as possible so as not to inhibit the movement of the shielding member 80 and to provide resistance to the flow of the oil 8 and air into the gap. It is made smaller.

  A plurality of oil passage grooves 84 that communicate between the inside and the outside of the shielding member 80 are provided below the shielding member 80. The oil passage groove 84 is opened at the lower end of the shielding member 80 and is provided so as to be disposed in any direction around the shielding member 80. The oil passage groove 84 is appropriately set to a size that allows the oil 8 stored in the oil pan 14 to enter the shielding member 80. The sum of the areas of the plurality of oil passage grooves 84 is set so that the resistance to the flow of the oil 8 does not increase, so that the load of the oil pump 5 does not increase. That is, the width of the plurality of oil passage grooves 84 along the circumferential direction or the axial direction of the shielding member 80 can be set in consideration of the flow resistance of the oil 8.

  Although the oil passage groove 84 shown in FIG. 6 is opened at the lower end of the shielding member 80, it may be formed as a passage hole that is not opened at the lower end of the shielding member 80. The shape of the oil passage groove 84 is not limited to a rectangle, and can be appropriately selected from a circle, an ellipse, a semicircle, and the like.

  The bottom surface 14a of the oil pan 14 is provided with a stopper portion 70 formed as a convex portion protruding toward the oil strainer 60 side. The moving range of the shielding member 80 movably disposed on the bottom surface 14 a of the oil pan 14 is restricted by the stopper 70. The movement range of the shielding member 80 is restricted by the stopper portion 70, so that the position of the outer peripheral surface of the shielding member 80 is not inward of the outer edge of the oil suction port 64. The shape of the outer periphery of the stopper portion 70 may be similar to the shape of the outer edge of the oil suction port 64 or the shape of the inner periphery of the shielding member 80. The convex portion as the stopper portion 70 may have a shape that protrudes entirely in a disk shape or a shape that protrudes in a ring shape.

  At this time, the outer edge of the stopper portion 70 is set so that the edge of the opening inside the shielding member 80 is located outside the oil suction port 64 in a state where the shielding member 80 is locked to the stopper portion 70. Is preferred. Thus, when the oil level O is offset, the edge of the oil suction port 64 is separated from the position where the air flows into the area inside the shielding member 80, and the air hardly flows into the oil suction port 64. can do.

  FIG. 7 shows a state in which the oil 8 is shifted to one side (right side) in the oil suction structure 50 according to the present embodiment. Also in the oil suction structure 50, when the oil 8 is shifted to one side in accordance with the change in the acceleration of the vehicle or the inclination of the vehicle, the shielding member 80 also moves in the same direction. When the shielding member 80 moves in a direction toward the side of the oil 8, the shielding member 80 is locked to the stopper portion 70 at a position in the opposite direction to the direction toward the side. At this time, the shielding member 80 is disposed close to a portion of the oil suction port 64 that is located in a direction opposite to the direction closer to the oil 8.

  As a result, at the position where the oil suction port 64 and the shielding member 80 are close to each other, the air flow toward the oil suction port 64 along the direction closer to the oil 8 is easily blocked. As described above, the air flow along the direction of the oil 8 is blocked, so that the air hardly flows into the oil suction port 64. Further, since the shielding member 80 has a cylindrical shape and the oil passage groove 84 is formed in the shielding member 80, the shielding member 80 does not block the oil suction port 64, and a path for sucking the oil 8 is secured. Is done.

  FIG. 8 shows a modification of the oil suction structure 50 according to the present embodiment. Such an oil suction structure 50 is not formed by a convex portion projecting toward the oil strainer 60, but is formed by a concave portion opened toward the oil strainer 60, so that the oil suction structure 50 shown in FIG. Different from the inhalation structure 50.

  The bottom surface 14a of the oil pan 14 is provided with a stopper portion 90 formed as a recess opened to the oil strainer 60 side. The moving range of the shielding member 80 movably disposed on the bottom surface 14 a of the oil pan 14 is restricted by contacting the edge of the stopper portion 90. The movement range of the shielding member 80 is restricted by the stopper portion 90, so that the position of the outer peripheral surface of the shielding member 80 is not inward of the outer edge of the oil suction port 64. The shape of the outer edge of the stopper 90 can be similar to the shape of the outer edge of the oil suction port 64 or the shape of the inner periphery of the shielding member 80. The concave portion as the stopper portion 90 may have a shape that is entirely depressed in a disk shape, or may be formed in a ring shape.

  FIG. 9 shows a state where the oil 8 is shifted to one side (right side) in the oil suction structure 50 according to the modification. Also in the oil suction structure 50, when the oil 8 is shifted to one side in accordance with the change in the acceleration of the vehicle or the inclination of the vehicle, the shielding member 80 also moves in the same direction. When the shielding member 80 moves in a direction toward the side of the oil 8, the shielding member 80 comes into contact with the edge of the stopper portion 90 at a position in the opposite direction to the direction toward the side. At this time, the shielding member 80 is disposed close to a portion of the oil suction port 64 that is located in a direction opposite to the direction closer to the oil 8.

  As a result, at the position where the oil suction port 64 and the shielding member 80 are close to each other, the air flow toward the oil suction port 64 along the direction closer to the oil 8 is easily blocked. As described above, the air flow along the direction of the oil 8 is blocked, so that the air hardly flows into the oil suction port 64. Further, since the shielding member 80 has a cylindrical shape and the oil passage groove 84 is formed in the shielding member 80, the shielding member 80 does not block the oil suction port 64, and a path for sucking the oil 8 is secured. Is done.

  As described above, the oil suction structure 50 according to the present embodiment includes the shielding member 80 provided so as to be movable on the bottom surface 14 a of the oil pan 14 so as to surround the oil suction port 64 of the oil strainer 60. The moving range of the shielding member 80 is restricted by the stopper portions 70 and 90 provided on the bottom surface 14 a of the oil pan 14 so that the position of the outer peripheral surface of the shielding member 80 is not inside the outer edge of the oil suction port 64. ing. Therefore, when the oil 8 is shifted to one side, the oil suction port 64 and the shielding member 80 are close to each other at a position opposite to the direction of the oil 8 and to the oil suction port 64 through the shortest path. The flow of air that can flow can be cut off. Thereby, the suction of air from the oil suction port 64 can be suppressed. As a result, it is possible to reduce a decrease in rotational efficiency and an increase in mass or cost of the automatic transmission.

  In the oil suction structure 50 according to the present embodiment, the shape of the outer edge of the oil suction port 64, the shape of the inner periphery of the shielding member 80, and the outer edges of the stopper portions 70 and 90 that restrict the movement range of the shielding member 80 are provided. The shape is similar. Therefore, regardless of the direction of the oil 8, the shielding member 80 moves in the direction of the oil 8 and blocks the air flow that can flow to the oil suction port 64 through the shortest path. Inhalation of air from 64 can be suppressed.

  The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious that a person having ordinary knowledge in the technical field to which the present invention pertains can come up with various changes or modifications within the scope of the technical idea described in the claims. Of course, it is understood that these also belong to the technical scope of the present invention.

  For example, in the first embodiment described above, the stopper portion that restricts the movement range of the shielding member 30 is realized by the cylindrical portion 28 of the oil strainer 20, but the present invention is not limited to such an example. For example, even when the oil suction port 24 is provided in the cylindrical portion 28 of the oil strainer 20, the convex portion or the concave portion disposed on the bottom surface 14a of the oil pan 14 as described in the second embodiment is used. The stopper parts 70 and 90 which become may be provided.

  Moreover, although the said embodiment demonstrated the structure of the oil suction structure for automatic transmissions, this invention is not limited to this example. The configuration of the oil suction structure can be applied to general oil suction structures for sucking oil from oil pans used for portions that can receive gravity in the front, rear, left, and right, and portions that can be tilted, such as engine oil pans.

10, 50 Oil suction structure 14 Oil pan 14a Bottom surface 20, 60 Oil strainer 24, 64 Oil suction port 28 Tube part (stopper part)
30, 80 Shield member 70, 90 Stopper 84 Oil passage groove

Claims (7)

An oil pan for storing oil;
An oil inlet facing the bottom surface of the oil pan and disposed with a gap between the bottom surface;
A shielding member movably provided so as to surround the periphery of the oil inlet;
A stopper portion that regulates the movement range of the shielding member so that the position of the outer peripheral surface of the shielding member is not inside the outer edge of the oil suction port;
An oil suction structure.   The oil suction structure according to claim 1, wherein the oil suction port is provided inside a cylindrical portion extending toward the bottom surface, and the cylindrical portion constitutes the stopper portion.   The oil suction structure according to claim 2, wherein a height of the shielding member is larger than a width of a gap between the cylindrical portion and the bottom surface.   The oil suction structure according to claim 1, wherein the stopper portion is a convex portion or a concave portion provided on the bottom surface. The oil suction port is an opening provided on the bottom surface of the oil strainer,
The stopper portion is the convex portion provided on the bottom surface;
The oil suction structure according to claim 4, wherein a height of the shielding member is smaller than a width of a gap between the oil suction port and the bottom surface. The oil suction port is an opening provided on the bottom surface of the oil strainer,
The stopper is the recess provided in the bottom surface;
The oil suction structure according to claim 4, wherein a height of the shielding member is larger than a width of a gap between the oil suction port and the bottom surface. The oil suction structure according to any one of claims 1 to 6, wherein a shape of an outer periphery of the stopper portion and a shape of an inner periphery of the shielding member are similar to each other.

Images