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US 2011/0079463 A1Published application
Variable resonation chamber valve
AssigneeHonda Motor Co., Ltd.
InventorDerek R. Scheetz
Life of this patent
Estimating the term…
Abstract
A variable resonation chamber valve includes an outer valve seat and a rotatable plunger. The outer valve seat defines an inlet opening into an associated resonation chamber. The rotatable plunger is movable into the inlet opening of the valve seat for varying a tuner area of the inlet opening.
Claims23
A variable resonation chamber valve for a vehicle, comprising:
- a valve seat defining an inlet opening into an associated resonation chamber, said valve seat comprising converging wall portions that form said inlet opening;
- and
- a rotatable plunger movable into said inlet opening of said valve seat for varying a tuner area of said inlet opening, said tuner area defined between said valve seat and said rotatable plunger without contact between said valve seat and said rotatable plunger, said rotatable plunger comprising converging wall portions having a matching configuration as said converging wall portions of said valve seat, said converging wall portions of said valve seat and said converging wall portions of said rotatable plunger forming an annular passage through said inlet opening when said rotatable plunger is received in said inlet opening, a size of said annular passage varying based on a degree to which said rotatable plunger is received in said inlet opening.
(canceled)
A variable tuner valve for a vehicle exhaust system, comprising:
- an outer valve body forming an inlet opening into a resonation chamber, said inlet opening in fluid communication with exhaust from an internal combustion engine, said outer valve body comprising converging wall portions that form said inlet opening;
- and
- a rotatably supported valve plunger selectively received within said outer valve body and said inlet opening without contact between said outer valve body and said valve plunger to vary tuning through said inlet opening into said resonation chamber, said valve plunger comprising converging wall portions having a matching configuration as said converging wall portions of said outer valve body, said converging wall portions of said valve plunger and said converging wall portions of said outer valve body forming an annular passage through said inlet opening when said valve plunger is received in said outer valve body, a size of said annular passage varying based on a degree to which said valve plunger is received in said outer valve body.
(canceled)
(canceled)
An adjustable exhaust silencer, comprising:
- a silencer body including an intake port and an exhaust port;
- a separator disposed in said silencer body to divide said silencer body into an expansion chamber and a resonation chamber, each of said intake port and said exhaust port in direct fluid communication with said expansion chamber;
- an outer valve seat disposed in said separator and defining an inlet opening into said resonation chamber for direct fluid communication from said expansion chamber, said outer valve seat comprising converging wall portions that form said inlet opening;
- and
- a rotatable valve body selectively received at a plurality of angular positions within said inlet opening without contact between said outer valve seat and said valve body for varying frequency attenuation by said resonation chamber, said valve body comprising converging wall portions having a matching configuration as said converging wall portions of said outer valve seat, said converging wall portions of said valve body and said converging wall portions of said outer valve seat forming an annular passage through said inlet opening when said valve body is received in said inlet opening, a size of said annular passage varying based on a degree to which said valve body is received in said inlet opening.
2 more elements
Dependencies are inferred from the claim text.