JP4159284B2 - Oil filter device - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to an oil filter device that is attached to an engine and filters engine oil to remove dirt and foreign matter from the oil.
[0002]
[Prior art]
Not only oil filters (oil filter devices) but also various auxiliary machines, various pipes, harnesses, etc. are attached to the engine. Depending on the case, the size may be different. Therefore, if the oil filter is installed in such an engine in the same mounting condition, interference with these auxiliary machines may occur or be installed. May have become difficult to attach and detach.
Japanese Patent Application Laid-Open No. 10-54218 discloses one countermeasure means for avoiding this, and specifically discloses an oil filter mounting angle that can be changed by 90 ° or 120 °. Yes. Of these, the oil filter mounting angle that can be changed by 90 ° is provided on the mounting surface on the engine body side of the filter head provided with an inlet passage and a second outlet passage for communicating the engine body with the oil filter. In this example, a communication path comprising an arc-shaped groove having a circular arc angle of approximately 90 ° is provided, which communicates with the outlet passage, and even if the communication filter changes the mounting angle of the oil filter by 90 °, It communicates with a second oil passage provided in a receiving part or mounting seat on the engine body side. In the case where the oil filter mounting angle can be changed by 120 °, the filter head has an arcuate shape with an arc angle of approximately 120 °, which communicates with the mounting surface on the engine body side, in this example, the outlet passage. The communication path is communicated with the second oil path provided in the receiving portion or mounting seat on the engine body side even if the oil filter mounting angle is changed by 120 °. It is like that.
[0003]
[Problems to be solved by the invention]
However, in the above-mentioned oil filter mounting angle that can be changed, the communication path provided in the filter head is an arc-shaped groove having an arc angle of approximately 90 ° or 120 °. Only the oil filter mounting angle can be changed, which is not enough to support engines of various specifications, and the positions of both are confirmed so that the communication passage does not stop communicating with the second oil passage. However, there is a complication that must be performed while mounting. In addition, when an oil filter is attached in a direction in which the communication path does not communicate with the second oil path, there is a risk that engine oil will not be supplied to a predetermined part.
[0004]
An object of the present invention is to provide an oil filter device that can change the mounting angle corresponding to engines of various specifications, and that does not block the flow of engine oil due to the change.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, an oil filter device according to claim 1 of the present invention includes an oil filter adapter for attaching an oil filter to an engine, and a supply flow path for supplying engine oil to the oil filter. And an oil filter device in which a mounting surface of the oil filter adapter is attached to a mounting portion of the engine through which a return flow path for receiving engine oil filtered by the oil filter is opened with a bolt via a gasket. The adapter is formed with a first oil passage whose one end side opens in the center of the mounting surface so as to face either the return flow path or the supply flow path, and the other end side communicates with the oil filter. Further, the return flow path and the supply flow path on the mounting surface A ring-shaped first annular groove is formed around the opening position of the first oil passage so as to communicate with the other, and one end side of the ring-shaped first annular groove opens to the first annular groove, and the other end side thereof A second oil passage communicating with the oil filter is formed, and a plurality of bolt holes through which the bolt is inserted are formed at equal intervals on a circumference centered on the opening of the first oil passage. The gasket includes a through hole formed at a position facing the first oil passage, a bolt hole formed at a position corresponding to the bolt hole of the oil filter adapter, and an oil filter device. The first oil passage communicates with the other one of the return flow path and the supply flow path even when the apparatus is rotated for each angle to change the mounting angle of the apparatus. Opposite the Jo groove are those having a plurality of arcuate grooves holes formed discontinuously with each other, the first oil passage, around the central axis of the opening located on the mounting portion side of the engine, the Even if the mounting angle of the oil filter device is changed to an appropriate angle, the second oil passage and the supply flow passage or the return flow passage form a communication state through the first annular groove and the appropriate groove hole of the gasket . In addition, the mounting angle can be changed to an appropriate angle without worrying about the positional relationship between the second oil passage and the supply flow passage or the return flow passage, and the flow of engine oil can be blocked by such a change. Does not occur. Needless to say, the first oil passage may be communicated with the return flow path or may be communicated with the supply flow path. For example, the first oil passage communicates with the return flow path. In this case, it goes without saying that the second oil passage is communicated with the supply passage.
Here, the above-mentioned appropriate angle when changing the mounting angle is theoretically an arbitrary angle. However, in practice, the oil filter adapter is attached to a predetermined circle when the oil filter device is mounted on the mounting portion of the engine. For example, the number of bolts arranged at equal intervals on the circumference depends on the number of bolts. If the number of bolts is large, the mounting angle can be changed, for example, every several tens of degrees.
Further, when the gasket is attached with a predetermined number of bolts as described above, the arc-shaped grooves when the gasket is fixed to the oil filter adapter are not required to be the annular grooves. There is no practical problem even if the holes are discontinuous in communication with the first annular grooves.
[0006]
In the oil filter device according to claim 2 of the present invention, the oil filter adapter is provided with a relief passage that communicates with either the first oil passage or the second oil passage through an oil relief valve. In addition, a ring-shaped second annular groove is formed around the opening position of the first oil passage so as to communicate with the relief passage on the mounting surface, and the gasket is configured to connect the oil filter device to the oil filter device. Even when the angle of rotation is changed to change the mounting angle, the relief flow path that opens to the mounting site of the engine and the relief path are communicated with each other so as to face the second annular groove. It has a plurality of arc-shaped slots formed continuously, and an oil relief valve is incorporated into the oil filter device to Compared filter and an oil relief valve to the conventional ones are separately respectively, Hakare be simplified apparatus, also, the maintenance improvement with respect to the valve can be achieved.
Needless to say, the relief passage may be communicated with the first oil passage via the oil relief valve or may be communicated with the second oil passage.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An oil filter device 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1A is a front view of the oil filter device 1, and FIG. 1B is a bottom view thereof. In addition, the arrow in FIG. 1 (A) has shown the flow direction of engine oil.
The oil filter device 1 serves to remove dirt and foreign matter from engine oil discharged from an oil pump (not shown) driven as the engine rotates, but is attached to the engine. The mounting angle of the oil filter device 1 with respect to the mounting portion 2 of the engine is set so that interference with various auxiliary machines, various piping, harnesses (not shown), etc. can be avoided and the mounting and dismounting can be easily performed. In this embodiment, the angle can be changed by 360 ° every 90 °. The cleaned engine oil is sent to a main gallery (not shown) of the engine to perform a lubricating action and a cooling action on predetermined parts.
[0009]
In the present oil filter device 1, as shown in FIG. 1, a known oil filter 3 for filtering engine oil is provided with an oil filter adapter 4 for attaching the oil filter 3 to an attachment site 2 of the engine. Furthermore, a gasket 5 as shown in FIG. 2 interposed between the attachment site 2 and the oil filter adapter 4 is provided. The oil filter 3 is attached to the oil filter adapter 4 so as to be easily detachable.
As shown in FIG. 1, the oil filter adapter 4 is formed in a cylindrical body having a substantially elbow joint shape with flange portions 6 and 7 formed at both ends. In the present embodiment, a square-shaped mounting surface 6 a is formed for mounting the oil filter device 1 to the engine mounting portion 2 via the gasket 5, while the flange portion 7 is provided with the oil filter 3. A contact surface 7a is formed on which one end of the oil filter 3 contacts when the oil filter 3 is fixed.
[0010]
Then, an outlet passage of the oil filter adapter 4 that leads to the return flow path 2a of the attachment site 2 so as to send engine oil from the oil filter 3 to the main gallery along the central axis line from the flange portion 6 to the flange portion 7 of the oil filter adapter 4. (First oil passage) 8 is provided. In other words, the outlet passage 8 is provided along the center axis of the oil filter adapter 4, and the opening 8 a on one end side of the opening of the outlet passage 8 located on the engine mounting part 2 side attaches its center. An opening on the other end side that is provided at the center of the surface 6a and that is located on the fastening side of the oil filter 3 is provided in communication with the oil filter 3, and the oil filter device 1 is mounted on the engine. When attached to the part 2 via the gasket 5, the opening 8a communicates with the return flow path 2a, and engine oil from the oil filter 3 is sent to the main gallery or the like.
[0011]
Further, an inlet passage (second oil passage) that leads to the supply passage 2b of the attachment portion 2 so as to supply engine oil from the engine to the oil filter 3 substantially parallel to the outlet passage 8 at the inner side from the central axis. ) 9 is provided. That is, the inlet passage 9 is provided in a mode along the outlet passage 8 near the inner diameter side of the oil filter adapter 4, and one end side of the opening portion of the inlet passage 9 located on the engine attachment site 2 side is provided . An appropriate position of the first annular groove 6b provided on the mounting surface 6a in such a manner that the opening 9a surrounds the opening 8a in a ring shape, in this embodiment, an inlet as shown in FIG. the position as shown in corresponding to the passage 9 FIG (B), provided as a communication hole leading to the first annular groove 6b, the other end side of the opening is the oil located on the fastening side of the oil filter 3 When the oil filter device 1 is attached to the engine attachment site 2 via the gasket 5, the opening 9 a communicates with the supply flow path 2 b from the engine. Engine oil It is supplied to the oil filter 3.
Further, bolt mounting holes 6c for fixing the oil filter device 1 to the engine mounting portion 2 with bolts (not shown) are provided at the four corners of the square shape on the mounting surface 6a of the oil filter adapter 4, respectively. The centers of these bolt holes 6c are on a circumference having a radius that is a straight line connecting the center and the center of the opening 8a, and have a positional relationship that equally divides the circumference.
[0012]
As shown in FIG. 2, the gasket 5 is a thin plate-like member having a square shape corresponding to the mounting surface 6 a of the oil filter adapter 4. In the present embodiment, the oil filter device 1 is connected to the above-described oil filter device 1. Thus, it can be changed by 360 ° every 90 ° and can be attached by using the above-described four bolts. Therefore, when the gasket 5 is closely fixed to the attachment surface 6a, the first annular groove 6b , Four (plural) arcuate grooves 5a _{1 to} 5a ₄ are formed at equal intervals at positions located between the following bolt holes 5c. Thereby, even if the mounting angle of the oil filter device 1 is changed as described above, the supply flow path 2b and the inlet passage 9 are supplied in accordance with the first annular groove 6b and the changed angle as will be described in detail later. It communicates through any of the slots 5a ₁ to 5a ₄ communicating with the flow path 2. The gasket 5 is provided with a through hole 5b in the center for allowing the outlet passage 8 and the return passage 2a to communicate with each other, and the bolts for the bolts are provided at the four corners of the square. Each of the holes 5c is provided.
[0013]
According to the oil filter device 1 having such a configuration, the inlet passage 9 and the supply flow passage 2b may be used in a case where interference with an auxiliary machine or the like occurs unless the oil filter mounting angle is changed. In the present embodiment, the mounting angle can be changed by 360 ° every 90 ° without worrying about the positional relationship between the two. In the following, in order to avoid interference with the auxiliary machine or the like, the oil filter device 1 is initially in the state shown in FIGS. 1B and 2 (the X-X axis in these figures is horizontal), for example. A case where the engine is rotated 90 ° clockwise from this state and attached to the attachment part 2 of the engine will be described. For convenience of explanation, it is assumed that the supply channel 2b and the inlet passage 9 are in a linear relationship in the initial state (FIG. 1).
When the oil filter device 1 is rotated 90 ° in the clockwise direction, engine oil from the supply flow path 2 b passes through the groove hole 5 a ₄ instead of the groove hole 5 a ₁ of the gasket 5 and enters the first annular groove 6 b of the oil filter adapter 4. The oil flows through the first annular groove 6 b through the opening 9 a of the inlet passage 9 and flows into the inlet passage 9 and is supplied to the oil filter 3. Further, the engine oil that has been cleaned by the oil filter 3 and reaches the opening 8a of the outlet passage 8 through the outlet passage 8 is sent to the main gallery through the return passage 2a.
[0014]
Next, an oil filter device 10 according to a second embodiment of the present invention will be described with reference to FIGS. 3A is a front view of the oil filter device 10, FIG. 3B is a bottom view thereof, and an arrow in FIG. 3A indicates the flow direction of engine oil. . 3 and 4 that are the same as those in FIGS. 1 and 2 are given the same reference numerals, and descriptions thereof are omitted.
The oil filter device 10 is different in that an oil filter adapter 11 is used instead of the oil filter adapter 4 and an oil relief valve 12 is provided on the oil filter adapter 11. The oil relief valve 12 is attached to a relief hole 13 that is formed perpendicularly to the outlet passage 8 and parallel to the attachment surface 6a of the flange portion 6, and communicates with the outlet passage 8 of the relief hole 13. The ball 12a that is locked to the opening 13a, a spring 12b that applies a biasing force to the ball 12a to close the opening 13a, and a spring seat at one end of the spring 12b, The cap 12c is fitted in the other opening 13b.
[0015]
Then, a relief passage 14 that is vertically communicated with a substantially central portion of the relief hole 13 and that is parallel to the outlet passage 8 is formed. Therefore, in the present embodiment, the relief passage 14 is the oil relief valve 12. Through the outlet passage (first oil passage) 8, and the opening 14 a of the relief passage 14 located on the side of the engine mounting site 2 surrounds the opening 8 a in a ring shape. In addition, in an embodiment that is concentric with the first annular groove 6b on the inner side of the first annular groove 6b, an appropriate position of the second annular groove 15 provided on the mounting surface 6a, in the present embodiment, FIG. Corresponding to the relief passage 14 as shown in A), a communication hole communicating with the second annular groove 15 is provided at a position as shown in FIG.
In the oil relief valve 12, when the pressure in the outlet passage 8 increases, the ball 12a is pressed against the urging force of the spring 12b with the pressure, and a part of the engine oil leaks to the relief passage 14 and leaks. The engine oil is sent to the relief flow path 2c of the attachment site 2 through the opening portion 14a, whereby the pressure in the outlet passage 8 is adjusted.
[0016]
Further, the gasket 16 corresponding to the oil filter device 10 is a thin plate-like member similar to the gasket 5 as shown in FIG. 4, but the gasket 5 is provided with grooves 16 a _{1 to} 16 a _4. Different. That is, the gasket 16 includes four (a plurality of) arcuate groove holes 16a ₁ to 16a in a form along the second annular groove 15 when the gasket 16 is closely fixed to the oil filter device 10. 16a ₄ are at equal intervals, are respectively bored at the position between the bolt holes 5c. As a result, even if the mounting angle of the oil filter device 10 is changed, the relief flow path 2c and the relief path 14 of the mounting portion 2 are grooved to communicate with the second annular groove 15 and the relief flow path 2c according to the changed angle. It will be communicated through any of 16a ₁ ~16a _4.
Therefore, even when such an oil filter device 10 and gasket 16 are used, the mounting angle of the oil filter device 10 with respect to the mounting portion 2 of the engine is 90 as in the case where the oil filter device 1 and the gasket 5 are used. Needless to say, 360 ° can be changed every °.
[0017]
By the way, in the first and second embodiments described above, the bolt holes 5c provided in the oil filter adapters 4 and 11 have a circular shape. For example, the oil filter adapter 4 1B may have an arc shape as shown by a two-dot chain line (at this time, the gasket 5 is also made an arc shape as shown by a two-dot chain line in FIG. 2). Good). By adopting such a shape, when there is a slight interference with auxiliary equipment, etc., it is only necessary to slightly change the mounting angle along the arc-shaped groove, so that the mounting work can be performed easily and convenience. Increase.
[0018]
【The invention's effect】
According to the oil filter device of the present invention, the mounting angle corresponding to an engine of various specifications can be changed, for example, every several tens of degrees, depending on how the oil filter device is mounted. However, the engine oil flow is not interrupted.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an oil filter and an oil filter adapter of an oil filter device according to a first embodiment.
2 is a configuration diagram of a gasket of the apparatus of FIG. 1;
FIG. 3 is a configuration diagram of an oil filter and an oil filter adapter of an oil filter device according to a second embodiment.
4 is a configuration diagram of a gasket of the apparatus of FIG. 3;
[Explanation of symbols]
1,10 oil filter device 2 engine mounting portion 2a return flow path 2b supply channel 2c relief channel 3 oil filter 4, 11 oil filter adapter 5,16 gasket 5a ₁ to 5 A ₄ slot
5c bolt hole 6b first annular groove
6c bolt hole 8 outlet passage (first oil passage)
8a Opening 9 Inlet passage (second oil passage)
9a Opening 12 Oil relief valve 14 Relief passage 14a Opening 15 Second annular groove
16a ₁ ~16a ₄ slot

Claims (2)

The engine includes an oil filter adapter for attaching an oil filter to the engine, and a supply flow path for supplying engine oil to the oil filter and a return flow path for receiving engine oil filtered by the oil filter are opened. An oil filter device that attaches the mounting surface of the oil filter adapter to a mounting portion with a bolt via a gasket,
The oil filter adapter has a first oil passage having one end opened at the center of the mounting surface so as to face either the return flow path or the supply flow path, and the other end communicating with the oil filter. A ring-shaped first annular groove is formed around the opening position of the first oil passage so as to communicate with either the return flow path or the supply flow path on the mounting surface; A second oil passage having one end opened to the first annular groove and the other end communicating with the oil filter is formed on the circumference of the circumference centering on the opening of the first oil passage. A plurality of bolt holes are inserted at regular intervals with a certain angle,
The gasket includes a through hole formed at a position facing the first oil passage, a bolt hole formed at a position corresponding to a bolt hole of the oil filter adapter, and an oil filter device. The second oil passage is opposed to the first annular groove so as to communicate with the other one of the return flow path and the supply flow path even when the angle is rotated to change the mounting angle. oil filter device according to claim Rukoto which having a plurality of arcuate grooves holes formed discontinuously with each other. The oil filter adapter is provided with a relief passage that communicates with either the first oil passage or the second oil passage through an oil relief valve, and the attachment surface communicates with the relief passage. A ring-shaped second annular groove is formed around the opening position of the first oil passage,
When the oil filter device is rotated at each angle to change the mounting angle of the oil filter device, the gasket allows the relief channel and the relief channel to open to the engine mounting site. oil filter apparatus of claim 1, wherein opposite the second annular groove and said Rukoto which having a plurality of arcuate grooves holes formed discontinuously each other as.

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