An oil filter module may include a casing and a filter therein. The oil filter module may also include a cap coupled to the casing, and including a drain nipple protruding downward from a portion of the cap corresponding to a bottom support plate of the filter with a drain hole formed in the drain nipple. The oil filter module may further include a drain pin coupled to the drain nipple so as to be removable so that the drain hole is open or closed by the drain pin. A rotation groove having a rotating axis of the casing may be formed in a lower surface of the bottom support plate. The drain hole may be formed at a position corresponding to the rotation groove, and the drain pin may be seated at one end thereof onto a bottom of the rotation groove when the drain pin is coupled to the drain nipple.
|
1. An oil filter module assembly comprising:
a casing having an open end;
a filter installed in the casing and including:
a pipe-shaped support frame having a plurality of openings in a sidewall thereof;
a filter paper enclosing an outer surface of the support frame;
an upper support plate coupled to the support frame and configured to cover an upper end of the filter paper; and
a bottom support plate coupled to the support frame and configured to cover a lower end of the filter paper;
a cap threadedly coupled to the casing to cover the open end of the casing, the cap configured to rotate relative to the bottom support plate and including a drain nipple protruding downward from a portion of the cap corresponding to the bottom support plate, with a drain hole formed in the drain nipple; and
a drain pin coupled to the drain nipple so as to be removable so that the drain hole formed in the drain nipple is opened or closed by the drain pin,
wherein an annular rotation groove having a rotating axis of the casing cap as a central axis thereof is formed in a lower surface of the bottom support plate,
the drain hole is formed at a position corresponding to the rotation groove, and
the drain pin is seated at one end thereof onto a bottom of the rotation groove when the drain pin is coupled to the drain nipple.
2. The oil filter module assembly according to
a pin body inserted into the drain hole in a force-fitting manner;
a slide block seated on the bottom of the rotation groove and formed on a first longitudinal end of the pin body in a block shape such that the slide block can slide along the rotation groove when the cap is rotatedin a direction in which the cap is threadedly rotated; and
a handle provided on a second longitudinal end of the pin body and exposed outside the drain nipple; and
a sealing element provided to enclose an outer surface of the pin body.
3. The oil filter module assembly according to
a longitudinal length of the slide block is greater than the entrance width of the rotation groove, and
a lateral width of the slide block is less than the entrance width of the rotation groove.
4. The oil filter module assembly according to
when the drain pin is oriented such that a longitudinal direction of the slide block corresponds to a diameter radial direction of the rotation groove, a longitudinal end of the slide block comes into contact with an inner sidewall of the rotation groove.
5. The oil filter module assembly according to
6. The oil filter module assembly according to
the handle has a plate shape extending downward, and
when the drain pin is oriented such that a longitudinal direction of the slide block corresponds to a diameter direction of the rotation groove, opposite lateral sides of the handle corresponds to the a marking groove.
7. The oil filter module assembly according to claim 4 2, wherein a longitudinal end of the slide block has a curved shape corresponding to a curvature of the inner sidewall of the rotation groove the drain pin further comprises a sealing element provided to enclose an outer surface of the pin body.
0. 8. The oil filter module according to
the handle has a plate shape extending downward, and
when the drain pin is oriented such that a longitudinal direction of the slide block corresponds to a diameter direction of the rotation groove, opposite lateral sides of the handle corresponds to the marking groove.
0. 9. The oil filter module according to
the handle has a plate shape extending downward, and
when the drain pin is oriented such that a longitudinal direction of the slide block corresponds to a diameter direction of the rotation groove, opposite lateral sides of the handle corresponds to the marking groove.
0. 10. The oil filter module according to
the handle has a plate shape extending downward, and
when the drain pin is oriented such that a longitudinal direction of the slide block corresponds to a diameter direction of the rotation groove, opposite lateral sides of the handle corresponds to the marking groove.
0. 11. An oil filter module comprising:
a casing having an open end;
a filter installed in the casing and including:
a pipe-shaped support frame having a plurality of openings in a sidewall thereof;
a filter paper enclosing an outer surface of the support frame;
an upper support plate coupled to the support frame and configured to cover an upper end of the filter paper; and
a bottom support plate coupled to the support frame and configured to cover a lower end of the filter paper;
a cap threadedly coupled to the casing to cover the open end of the casing, the cap including a drain nipple protruding downward from a portion of the cap corresponding to the bottom support plate, with a drain hole formed in the drain nipple; and
a drain pin coupled to the drain nipple so as to be removable so that the drain hole formed in the drain nipple is opened or closed by the drain pin, the drain pin including:
a pin body inserted into the drain hole in a force-fitting manner;
a slide block seated on the bottom of the rotation groove and formed on a first longitudinal end of the pin body in a block shape such that the slide block can slide along the rotation groove when the cap is rotated in a direction in which the cap is threadedly rotated;
a handle provided on a second longitudinal end of the pin body and exposed outside the drain nipple; and
a sealing element provided to enclose an outer surface of the pin body,
wherein an annular rotation groove having a rotating axis of the casing as a central axis thereof is formed in a lower surface of the bottom support plate,
the drain hole is formed at a position corresponding to the rotation groove, and
the drain pin is seated at one end thereof onto a bottom of the rotation groove when the drain pin is coupled to the drain nipple.
0. 12. The oil filter module according to
0. 13. The oil filter module according to
14. The oil filter module assembly according to
15. The oil filter module assembly according to
0. 16. The oil filter assembly according to claim 14, further comprising an O-ring sealing element arranged on an outer circumferential surface of the drain pin, wherein the through-hole is positioned below the O-ring sealing element relative to the bottom support plate.
0. 17. The oil filter assembly according to claim 1, further comprising a casing having an open end, wherein the cap is threadedly coupled to the casing to cover the open end of the casing.
0. 18. The oil filter assembly according to claim 1, wherein the drain pin includes a slide block at said one end seated on the bottom of the rotation groove, and wherein the slide block comprises a synthetic resin material.
|
|||||||||||||||||||
This application safetylateral longitudinal length of said slide block (420) is greater than the entrance width of said rotation groove (242), and the longitudinal length lateral width of said slide block (420) is smaller than the entrance width of said rotation groove (242). Therefore, when said slide block (420) is laterally longitudinally aligned to the radial direction (see
In addition, when the slide block (420) of the drain pin (400) is inserted into the rotation groove (242) on the bottom support plate (240) and is supplied to an assembly factory, an assembler needs to turn the cap (300) and combine the cap with the casing (100) in screwed connection mode, with the lower end of the body (410) inserted into the drain hole (312). However, if said rotation groove (242) is manufactured into a single dented groove, it is impossible to rotate the drain pin (400) and the cap (300) together. Of course, when the drain pin (400) is installed on the rotation axis of the cap (300), the cap (300) can also be rotated, even if the rotation groove (242) is manufactured into a single dented groove. In this case, the drain pin (400) and the bypass valve (500) interfere with each other, however, and thus said cap (300) needs to be manufactured in an elongate manner in the upward and downward directions.
In the oil filter assembly in the present invention, even if the drain pin (400) is set a certain distance away from the rotation axis of the cap (300), said rotation groove (242) is preferably manufactured into an annular groove with the central axis being the rotation axis of the cap (300) so as to keep said drain pin (400) rotating together with said cap (300) during the rotation of the cap (300). As described above, when said rotation groove (242) is manufactured into an annular groove, said slide block (420) will laterally be longitudinally aligned to the radial direction of the rotation groove (242), that is to say said slide block (420) remains hung in the entrance of the rotation groove (242), and therefore said slide block (420) can rotate with the rotation axis of the cap (300) being the central axis and the cap (300) can rotate free of interference from the drain pin (400).
In addition, when said slide block (420) slides along the rotation groove (242), the slide block is preferably manufactured into a structure with polygonal edges to keep the slide block (420) always laterally longitudinally aligned to the radial direction of the rotation groove (242) and one lateral longitudinal end (422) of said slide block (420) touching the internal side wall of said rotation groove (242). As shown in
Further, to keep one lateral longitudinal end (422) of the slide block (420) wholly touching the internal side wall of the rotation groove (242), the lateral longitudinal end (422) of said slide block (420) can be manufactured into a curved shape and the curvature is the same as that of the internal side wall of the rotation groove (212). As described above, when the lateral longitudinal end (422) of the slide block (420) is manufactured into a curved shape, said slide block (420) will not rotate at all in the direction indicated by arrows in
When you remove said drain pin (400), you need to rotate said drain pin (400). In this case, if said slide block (420) is made of a material with almost no elasticity, such as a metal, you cannot rotate said drain pin (400) since the edges of said slide block (420) are snapped into the internal side wall of the rotation groove (242). Therefore, said slide block (420) should be made of a material with elasticity above the standard value, such as synthetic resin, so that the edges of the slide block can cross the internal side wall of the rotation groove (242) when you apply a force, but said slide block will not rotate under the action of vibrations of the engine.
To prevent the slide block (420) of the drain pin (400) from being separated from the rotation groove (242), you should align the lateral longitudinal direction (the direction with a larger length) of the slide block (420) to the radial direction of the rotation groove (242), as shown in
On the contrary, to separate the slide block (420) of the drain pin (400) from the rotation groove (242), you should rotate the slide block (420) and align the lateral longitudinal direction (the direction with a larger length) to the tangential direction of the rotation groove (242), as shown in
To this end, marking grooves (314) are formed in the radial direction of the drain nipple (310) on the protruding end of the drain nipple (310) and said handle (430) is manufactured into a downward extended plate. When you rotate the drain pin (400) to keep the lateral longitudinal direction of the slide block (420) aligned to the radial direction of the rotation groove (242), you can set the two ends in the amplitude width direction of the handle (430) aligned to said marking grooves (314), as shown in
As described above, when marking grooves (314) are formed on the drain nipple (310), the operator can rotate the drain pin (400) by a correct angle by confirming the direction of the handle (430) and the positions of marking grooves (314), and then can easily separate the drain pin (400) to discharge engine oil.
The present invention is described in detail above with reference to the preferred embodiment of the present invention. The scope of the present invention is not limited to a specific embodiment, but should be explained according to the attached claims. Further, those skilled in the art should understand that modifications and variations can be made without departing from the scope of the present invention.
| Patent | Priority | Assignee | Title |
| Patent | Priority | Assignee | Title |
| 4117529, | Mar 23 1977 | UNION SWITCH & SIGNAL INC , 5800 CORPORATE DRIVE, PITTSBURGH, PA , 15237, A CORP OF DE | Broken rail detecting track circuits |
| 4177529, | Aug 18 1978 | Deere & Company | Filter wrench |
| 8522415, | Mar 22 2010 | Drainable oil filter system and method for draining oil from an engine | |
| 20040188346, | |||
| 20080190832, | |||
| 20080202081, | |||
| 20110024344, | |||
| 20120160756, | |||
| 20120234743, | |||
| 20120261326, | |||
| 20130008839, | |||
| 20130043173, | |||
| 20130264265, | |||
| 20140353233, | |||
| 20160136548, | |||
| DE102007009352, | |||
| DE102009049868, | |||
| DE102014000715, | |||
| DE202005002955, | |||
| EP3034147, | |||
| JP2003512165, | |||
| JP2004346929, | |||
| KR100775520, | |||
| KR101190220, | |||
| KR102012007926, | |||
| KR1020120079269, |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jul 31 2019 | Mahle International GmbH | (assignment on the face of the patent) | / |
| Date | Maintenance Fee Events |
| Jul 31 2019 | BIG: Entity status set to Undiscounted (note the period is included in the code). |
| Date | Maintenance Schedule |
| Jun 01 2024 | 4 years fee payment window open |
| Dec 01 2024 | 6 months grace period start (w surcharge) |
| Jun 01 2025 | patent expiry (for year 4) |
| Jun 01 2027 | 2 years to revive unintentionally abandoned end. (for year 4) |
| Jun 01 2028 | 8 years fee payment window open |
| Dec 01 2028 | 6 months grace period start (w surcharge) |
| Jun 01 2029 | patent expiry (for year 8) |
| Jun 01 2031 | 2 years to revive unintentionally abandoned end. (for year 8) |
| Jun 01 2032 | 12 years fee payment window open |
| Dec 01 2032 | 6 months grace period start (w surcharge) |
| Jun 01 2033 | patent expiry (for year 12) |
| Jun 01 2035 | 2 years to revive unintentionally abandoned end. (for year 12) |