Muffler for an engine
First Claim
1. A muffler suited for use in discharging exhaust gas from an engine, the muffler comprising:
- a housing defining a muffler interior, an inlet aperture, and an outlet aperture;
a baffle positioned to divide the muffler interior into an inlet space and an intermediate space, a first aperture defined within the baffle to provide fluid communication between the inlet space and the intermediate space, and a second aperture formed within the baffle to provide for fluid communication between the intermediate space and the outlet aperture; and
a flow guide integrally formed as part of the baffle and positioned to direct exhaust gas through the outlet aperture.
8 Assignments
0 Petitions
Accused Products
Abstract
A muffler suited for use in discharging exhaust gas from an engine. The muffler generally includes a housing that defines a muffler interior, an inlet aperture, and an outlet aperture. A baffle that defines a baffle interior is positioned to divide the muffler interior into an inlet space and an intermediate space. A first aperture is defined within the baffle to provide fluid communication between the inlet space and the intermediate space and a second aperture is formed within the baffle to provide for fluid communication between the intermediate space and the baffle interior. A flow guide is integrally formed with the baffle and is positioned to direct exhaust gas from the baffle interior through the outlet aperture.
20 Citations
29 Claims
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1. A muffler suited for use in discharging exhaust gas from an engine, the muffler comprising:
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a housing defining a muffler interior, an inlet aperture, and an outlet aperture;
a baffle positioned to divide the muffler interior into an inlet space and an intermediate space, a first aperture defined within the baffle to provide fluid communication between the inlet space and the intermediate space, and a second aperture formed within the baffle to provide for fluid communication between the intermediate space and the outlet aperture; and
a flow guide integrally formed as part of the baffle and positioned to direct exhaust gas through the outlet aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A muffler suited for use in discharging a flow of exhaust gas from an engine, the muffler comprising:
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a housing having a first half and a second half connected to the first half to define a perimeter joint and a muffler interior;
a first baffle having a first flow guide portion and a first divider portion engaged with the perimeter joint to divide the muffler interior into an inlet space and an intermediate space; and
a second baffle having a second flow guide portion and a second divider portion engaged with the perimeter joint, the first flow guide portion and the second flow guide portion cooperating to define a discharge space, the first flow guide portion, the second flow guide portion, and the housing cooperating to define an outlet, the first baffle and the second baffle cooperating to define a first aperture that provides for fluid communication between the inlet space and the intermediate space and the second baffle defining a second aperture that provides for fluid communication between the intermediate space and the discharge space. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. An engine comprising:
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a cylinder including an exhaust port for the discharge of exhaust gas;
a piston arranged for reciprocal movement within the cylinder;
an air/fuel mixing device operable to mix a flow of air and a flow of fuel; and
a muffler having a housing defining a muffler interior, an inlet aperture for receiving the exhaust gas, and an outlet aperture for discharging the exhaust gas;
a baffle disposed within the housing to define an inlet space, an intermediate space, and an outlet space, the baffle including a first aperture that provides fluid communication between the inlet space and the intermediate space and a second aperture that provides fluid communication between the intermediate space and the outlet space; and
a flow guide integrally formed as part of the baffle and positioned to guide exhaust gas from the outlet space out of the muffler. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification