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AssigneeMTU Motoren- und Turbinen-Union Friedrichshafen GmbH
InventorsHermann Braun, Georg Ruetz
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A throttle flap construction (12) is installed in an exhaust gas duct (11). For the installation the duct wall is provided with a radially facing, axially extending narrow slot (20) centrally provided with a circular opening so that a flap disk (14) may pass radially inwardly through the slot while a bearing portion (17) of the flap disk (14) may pass through the central circular opening. During installation, the flap disk (14) extends vertically when the throttle unit is inserted, a cover (16) is bolted to a flange (11A) surrounding the slot (20) and the central opening (21). Thus, the duct (11) can be properly sealed without cutting entirely through the duct in a radial plane.
A throttle flap construction, comprising a flow duct (11) having a duct wall, a substantially radially facing axially extending slot (20) in said duct wall, a flap disk (14) fitting through said slot (20), a drive shaft (15) connected to said flap disk (14) to form a closure unit, a cover (16) for covering said slot (20), means connecting said cover to said duct, a first mounting bearing (17) for mounting said drive shaft (15) in said cover (16) so that a free end of said drive shaft extends outside said first bearing (17) when said flap disk (14) is inside said duct (11), means connected to said free end of said drive shaft (15) for rotating said flap disk inside said duct (11) from the outside of said duct, and a second mounting bearing (23, 25) in said duct wall opposite said first mounting bearing, said second mounting bearing holding said flap disk (14) in axial alignment with said drive shaft.
Dependencies are inferred from the claim text.