High capacity oil filter

Patent metadata

Field	Value
Publication number	US-2023279794-A1
Application number	US-202318196613-A
Country	US
Kind code	A1
Filing date	May 12, 2023
Priority date	Oct 28, 2015
Publication date	Sep 7, 2023
Grant date	—

Abstract

An apparatus and a method are provided for a high capacity oil filter configured to remove contaminants from engine oil flowing within an internal combustion engine. The oil filter comprises a hollow canister having a length and a diameter suitable for housing a large filtration medium. A base gasket forms a fluid-tight seal between the oil filter and the engine. A base plate circulates oil from the engine through the oil filter. An anti-drainback valve prevents oil from draining out of the filter and passages within the engine when the engine is not operating. A key aspect of the present disclosure is that the relatively large dimensions and the configuration of the filtration media provide a large surface area for entrapping contaminants flowing with the engine oil.

First claim

1 . A high capacity oil filter for filtering engine oil circulating within an internal combustion engine, comprising:
a canister comprising a hollow cylindrical body having a length and a diameter; a base gasket configured to establish a fluid-tight seal between the engine and the oil filter; a base plate configured allow circulation of engine oil from the engine through the oil filter; a filter medium configured to entrap contaminants flowing with the engine oil; and an anti-drainback valve.

2 . The high capacity oil filter of claim 1 , wherein the canister includes a welded nut configured to facilitate removal of the oil filter from the engine by way of a hand-tool.

3 . The high capacity oil filter of claim 1 , wherein the base plate comprises of a plurality of holes circumferentially disposed around an outlet, wherein the plurality of holes are configured to allow oil into the canister and the outlet is configured to allow oil to exit the canister.

4 . The high capacity oil filter of claim 3 , wherein the anti-drainback valve is configured to prevent oil from exiting the oil filter by way of the plurality of holes.

5 . The high capacity oil filter of claim 1 , further comprising a bypass valve configured to allow oil to bypass the filter medium when the oil is too thick to filter.

6 . The high capacity oil filter of claim 1 , further comprising a leaf-spring configured to maintain a tight seal between the filter medium and an interior of the canister.

Assignees

• K&N Eng Inc

Inventors

• Williams Steve
• Fiello Jonathan Richard
• Heck Gilbert

Classifications

• F01M11/03 Primary

  Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means (filters B01D) · CPC title

• B01D35/153

  Anti-leakage or anti-return valves · CPC title

• B01D35/147

  Bypass or safety valves · CPC title

• B01D27/106

  Anti-leakage or anti-return valves · CPC title

• B01D27/103

  Bypass or safety valves · CPC title