Internal-combustion engines – Engine speed regulator – Specific throttle valve structure
Reexamination Certificate
2005-01-18
2005-01-18
Argenbright, Tony M. (Department: 3747)
Internal-combustion engines
Engine speed regulator
Specific throttle valve structure
C123S339230, C123S585000, C123S590000
Reexamination Certificate
active
06843224
ABSTRACT:
Air induction noise of a throttle apparatus caused by interference between flowing air and an opening for a bypass passage is reduced because a protrusion formed on an interior surface of the throttle apparatus changes aerodynamic features of the throttle apparatus.
REFERENCES:
patent: 4966122 (1990-10-01), Frinzel
patent: 5947082 (1999-09-01), Choi et al.
patent: 5970963 (1999-10-01), Nakase et al.
patent: 6041754 (2000-03-01), Mori et al.
patent: 6196187 (2001-03-01), Zubeck et al.
patent: 6539917 (2003-04-01), Shaw et al.
patent: 02-223662 (1990-09-01), None
Argenbright Tony M.
Hyundai Motor Company
Morgan & Lewis & Bockius, LLP
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