Curved base air filter

Patent metadata

Field	Value
Publication number	US-11927158-B2
Application number	US-202318114683-A
Country	US
Kind code	B2
Filing date	Feb 27, 2023
Priority date	Oct 28, 2015
Publication date	Mar 12, 2024
Grant date	Mar 12, 2024

Abstract

An apparatus and methods are provided for an air cleaner to be mounted onto an air inlet of an internal combustion engine. The air cleaner comprises an air filter that includes a filter medium disposed between a curved base and a cover. The curved base provides an interface between the air filter and the air inlet, and comprises a shape that provides clearance between the curved base and an electric choke installed onto a carburetor comprising the air inlet. The cover secures the air filter and the curved base to the air inlet such that an airstream is drawn through the filter medium and is conducted into the air inlet. A raised portion of the cover is configured to cooperate with the curved base to ensure a desired volume of the airstream is available to the air inlet at substantially all engine speeds.

First claim

What is claimed is:

1. An air cleaner for an internal combustion engine, comprising:
a curved base coupled with an air inlet;
an air filter disposed on the curved base; and
a cover securing the air filter and the curved base to the air inlet wherein the curved base comprises: an inlet receiver; a curved portion extending radially from the inlet receiver; and a peripheral flat portion surrounding the curved portion and further wherein the curved portion is configured to enable installation of the air cleaner onto the air inlet without interfering with an underside of a hood wherein the curved portion is adapted to provide clearance for an electric choke installed onto a carburetor comprising the air inlet; and
wherein the air filter comprises a filter medium disposed between a first end cap and a second end cap.

Assignees

• K&N Eng Inc

Inventors

• Williams Steve E
• Wall Jere James

Classifications

• F02M35/02483 Primary

  Cylindrical, conical, oval, spherical or the like filter elements; wounded filter elements · CPC title

• F02M35/0204 Primary

  for connecting or joining to other devices, e.g. pipes · CPC title

• F02M35/02416

  Fixing, mounting, supporting or arranging filter elements; Filter element cartridges · CPC title

• F02M35/044

  Special arrangements of cleaners in or with respect to the air intake system, e.g. in the intake plenum, in ducts or with respect to carburettors · CPC title

• F02M35/10196

  Carburetted engines · CPC title