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05/08/08 | 25 views | #20080104950 | Prev - Next | USPTO Class 060 | About this Page  060 rss/xml feed  monitor keywords

Exhaust gas heat exchanger, especially for motor vehicles

USPTO Application #: 20080104950
Title: Exhaust gas heat exchanger, especially for motor vehicles
Abstract: The invention relates to an exhaust gas heat exchanger (2), especially for motor vehicles, comprising a main flow path and a secondary flow path (bypass) for the exhaust gas. Said heat exchanger comprises a valve device (3) which is used to control the exhaust gas flow and can be actuated by a servomotor (4) by means of a transmission device (8, 6), the valve device (3) comprising a valve closing member fixed to a valve shaft (a). According to the invention, the valve shaft (a) can be loaded by a torsion spring (5) which can be supported on the valve shaft and on the valve device (3, 3a). (end of abstract)
Agent: Woodard, Emhardt, Moriarty, Mcnett & Henry LLP - Indianapolis, IN, US
Inventors: Herve Palanchon, Martin Stiegler, Dieter Werner
USPTO Applicaton #: 20080104950 - Class: 060324000 (USPTO)
Related Patent Categories: Power Plants, Internal Combustion Engine With Treatment Or Handling Of Exhaust Gas, Divider, Collector, Valve Means, Or Boundary Layer Device Controlling Exhaust Gas Flow

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