After-burning preventive and flame-out apparatus
AssigneeToyota Jidosha Kogyo Kabushiki Kaisha
InventorsShinichiro Mizusawa, Chiharu Tamura, Norihiko Nakamura, Hiromichi Yanagihara
Life of this patent
Estimating the term…
Abstract
For use in a muffler of an internal combustion engine improved flame-out apparatus includes first and second L-shaped screens each having a longitudinal section and a transverse section. The transverse sections are axially spaced apart and the space therebetween is occupied by a pair of axially spaced apart, transversely oriented perforated partition plates and flame extinguishing means.
Claims8
In a muffler for an internal combustion engine, including an after-burning preventive and flame-out apparatus provided therein, so that flame which takes place in the course of running of a gas mixture through an exhaust system from the engine to the muffler may be extinguished by means of an improved flame-out apparatus comprising:
- a first L-shaped screen member including a longitudinally extending body portion and a transversely oriented flange portion extending inwardly from one end of said body portion, the outer face of said body portion being welded to the inner face of the outer body of the muffler;
- a second L-shaped screen member including a longitudinally extending body portion and a transversely oriented flange portion extending inwardly from one end of said body portion of said second L-shaped screen member, the outer face of said body portion of said second L-shaped member being welded to the inner face of said body portion of said first L-shaped screen member with said body portion of said first L-shaped screen member being longer than said body portion of said second L-shaped screen member in the axial direction so that said flanged portion of said first L-shaped screen member is axially spaced from said flanged portion of said second L-shaped screen member;
- a pair of transversely oriented partition plates each having a plurality of small openings, the axially outer surface of one of said partition plates being welded to the axially inner surface of said flange portion of said first L-shaped screen member while the axially outer surface of said other partition plate being welded to the axially outer surface of said flange portion of said second L-shaped screen member whereby an axially extending space is defined between said pair of partition plates;
- and
- flame extinguishing means filling said axially extending space between said pair of partition plates and the inner surface of said body portion of said first L-shaped screen member for extinguishing the flame which takes place in the gas exhaust system.
Dependencies are inferred from the claim text.