Device for separation of dust
First Claim
1. A system for centrifugal purification of combustion air, said system comprising a fan wheel, a helical fan housing surrounding said fan wheel, and an air nozzle disposed within said fan housing close to said fan wheel, said air nozzle serving as a passageway for combustion air and having an inlet (12) comprising a baffle wall (14) located close to the periphery of said fan wheel and conducting air to said inlet, said baffle wall having a semi-elliptical shape as seen in a direction of air flow, said semi-elliptical shape being defined by an ellipse having an axes ratio of between 2.0:
- 1 to 3.5;
1.
2 Assignments
0 Petitions
Accused Products
Abstract
A device for centrifugal purification of combustion air in an internal combustion engine, especially for a motor saw, wherein the engine has an air cooling system including a fan wheel (19) provided in a helical fan housing (18). The device includes an air nozzle which defines an air passage for conducting combustion air from the fan housing to the engine. The air nozzle (10) is located adjacent to the fan wheel. The nozzle has an inlet (12) including a baffle wall (14) located close to the periphery of the fan wheel and conducting air to the inlet. The baffle wall has a part-elliptical shape as seen in the direction of air flow.
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Citations
16 Claims
- 1. A system for centrifugal purification of combustion air, said system comprising a fan wheel, a helical fan housing surrounding said fan wheel, and an air nozzle disposed within said fan housing close to said fan wheel, said air nozzle serving as a passageway for combustion air and having an inlet (12) comprising a baffle wall (14) located close to the periphery of said fan wheel and conducting air to said inlet, said baffle wall having a semi-elliptical shape as seen in a direction of air flow, said semi-elliptical shape being defined by an ellipse having an axes ratio of between 2.0:
Specification