Air filter choke valve method and spitback shield
AssigneeTextron Inc.
InventorEdward J. Bidanset
Life of this patent
Estimating the term…
Abstract
An airflow controller for use in an air filter for an internal combustion engine. The airflow controller comprises a frame and means for movably mounting the frame in the air filter for relatively lateral movement therein. The airflow controller frame comprises a plate that can restrict airflow into a carburetor to choke an engine and a spitback shield having an air intake volute and a venturi cone.
Claims22
An airflow controller for use in an air filter for an internal combustion engine, the air filter having a carburetor inlet, the airflow controller comprising:
- frame means having a first section and a second section, said first section comprising a carburetor inlet restrictor means and said second section comprising means for directing air inflow into the carburetor inlet;
- and
- means for movably mounting said frame means in the air filter for relatively lateral movement therein, said frame means being movable in the air filter between a first position having said restrictor means substantially restricting air inflow into the carburetor inlet and a second position having said directing means substantially defining an air inflow path towards the carburetor inlet.
An air filter for use with a carburetor of an internal combustion engine, the filter comprising:
- frame means;
- filter element means;
- and
- airflow controller means movably mounted in said frame means, said controller means comprising means for substantially restricting airflow into the carburetor and a spitback shield means having an air intake volute means and a venturi cone means therewith.
A method of manufacturing an air filter for an internal combustion engine comprising the steps of:
- providing a filter frame means connectable to a carburetor of the engine and having an airflow inlet therewith;
- providing an airflow controller comprising choke valve means and air inflow channelizer means, said airflow channelizer means comprising a spitback shield having a venturi cone means and an inflow volute;
- and
- mounting said airflow controller in said filter frame proximate said airflow inlet such that said airflow controller is movably mounted in said frame means with said choke valve means being movable to choke the engine in a first position.
Dependencies are inferred from the claim text.