초록 ▼

An improved wastegate valve for turbochargers having bifurcated exhaust gas inlets includes a first bypass port communicating with a first portion of the exhaust inlet, a first poppet which engages and seals a seat surrounding the first port, a second bypass port communicating with a second portion

An improved wastegate valve for turbochargers having bifurcated exhaust gas inlets includes a first bypass port communicating with a first portion of the exhaust inlet, a first poppet which engages and seals a seat surrounding the first port, a second bypass port communicating with a second portion of an exhaust inlet, and a second poppet which engages and seals a seat surrounding the second port. Actuation of the poppets is accomplished by a first substantially tubular shaft supported for rotation about an axis and having a central bore and a second substantially tubular shaft extending through the central bore of the first shaft and supported therein for rotation about the axis. The two shafts are concurrently rotated by a lever arm which is connected to the first shaft, at an opposite end to the radial arm, with a weld bead which extends across the end face of the first shaft, the bore, and a coplanar end of the second shaft.

대표청구항 ▼

[ What is claimed is:] [1.] A turbocharger wastegate valve comprising:a first bypass port communicating with a first portion of an exhaust inlet;a first poppet adapted for engaging and sealing a seat surrounding the first port;a second bypass port communicating with a second portion of an exhaust in

[ What is claimed is:] [1.] A turbocharger wastegate valve comprising:a first bypass port communicating with a first portion of an exhaust inlet;a first poppet adapted for engaging and sealing a seat surrounding the first port;a second bypass port communicating with a second portion of an exhaust inlet;a second poppet adapted for engaging and sealing a seat surrounding the second port;a first substantially tubular shaft supported for rotation about an axis, said shaft having a central bore;a second substantially tubular shaft extending through the central bore of the first shaft and supported therein for rotation about the axis;means for attaching the first poppet to the first shaft, said means extending substantially radially from the first shaft, whereby rotation of said first shaft from a first position to a second position lifts the first poppet from sealing engagement with its seat to an open position;means for attaching the second poppet to the second shaft, said means extending substantially radially from the second shaft whereby rotation of said second shaft from a first position to a second position lifts the second poppet from sealing engagement with its seat to an open position; andmeans for concurrently rotating the first and second shafts.