초록 ▼

Method and apparatus for changing oil in an internal combustion engine pierces an outer wall of an old oil filter containing old motor oil to form an opening in a lower portion of the filter wall. Old motor oil is drawn from the pierced oil filter into a container by suction through the filter wall

Method and apparatus for changing oil in an internal combustion engine pierces an outer wall of an old oil filter containing old motor oil to form an opening in a lower portion of the filter wall. Old motor oil is drawn from the pierced oil filter into a container by suction through the filter wall opening and a suction conduit. The oil drain plug from a crankcase containing old motor oil is removed to form a drain opening in the crankcase, and old motor oil is drawn from the crankcase into a container by suction through the drain opening and a suction cup, to empty the crankcase of old motor oil. The drain opening is closed after emptying the crankcase of old motor oil by securing the drain plug in the drain opening. The pierced and drained old oil filter is replaced with a new filter and the drained crankcase is refilled with fresh motor oil.

대표청구항 ▼

An oil change device for changing motor oil in an internal combustion engine having an oil drain plug in an engine crankcase and a replaceable oil filter, the device comprising: means for removing oil from the oil filter including a suction conduit having a mouth and an exit passageway, and means fo

An oil change device for changing motor oil in an internal combustion engine having an oil drain plug in an engine crankcase and a replaceable oil filter, the device comprising: means for removing oil from the oil filter including a suction conduit having a mouth and an exit passageway, and means for piercing an outer wall of an oil filter to form an opening in the filter wall; the exit passageway of the suction conduit being connected to a first flexible hose in communication with a source of suction for applying suction to the suction conduit and thereby draw oil from the oil filter through the filter wall opening and through the suction conduit into a container; and means for removing oil from an engine crankcase through a drain opening in the crankcase, comprising a first suction cup having a mouth and an exit passageway, the exit passageway of the first suction cup being connected to a second flexible hose in communication with said source of suction for applying suction to the first suction cup and thereby draw oil from the crankcase through the crankcase drain opening and through the first suction cup into said container when the mouth of the first suction cup is in sealing contact with the crankcase drain opening; wherein the suction conduit for removing oil from the filter is comprised of a second cup having a wall portion which is longitudinally displaceable and resilient, and wherein the mouth of the second suction cup is placed in sealing contact with the wall of the oil filter over the pierced filter wall opening for applying suction to remove oil from the filter.