OIL FILTER ASSEMBLY HAVING ROTATION TYPE DRAIN PIN

摘要

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.

主权项

1. 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; anda 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, 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.