Branch communication valve for a twin scroll turbocharger
First Claim
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1. A dual scroll turbocharger system, comprising:
- a first scroll and a second scroll of a turbine, fluidically separated by a dividing wall, the second scroll comprising a recess;
an opening in the dividing wall between the first scroll and the second scroll; and
a branch communication valve comprising a valve plate rotatable about a hinge positioned on the dividing wall, wherein the branch communication valve is a side-hinged valve, wherein exhaust gas travels through the first scroll and the second scroll when the valve plate is in an open and closed position.
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Abstract
Methods and systems are provided for a branch communication valve in a twin turbocharger system. A branch communication valve may be positioned adjacent to a dividing wall separating a first scroll and a second scroll of the twin turbocharger. In an open position, the branch communication valve increases fluid communication between the first scroll and the second scroll and in a closed position, the branch communication valve decreases fluid communication between the first scroll and the second scroll.
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Citations
20 Claims
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1. A dual scroll turbocharger system, comprising:
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a first scroll and a second scroll of a turbine, fluidically separated by a dividing wall, the second scroll comprising a recess; an opening in the dividing wall between the first scroll and the second scroll; and a branch communication valve comprising a valve plate rotatable about a hinge positioned on the dividing wall, wherein the branch communication valve is a side-hinged valve, wherein exhaust gas travels through the first scroll and the second scroll when the valve plate is in an open and closed position. - View Dependent Claims (2, 3)
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4. A dual scroll turbocharger system, comprising:
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a first scroll and a second scroll fluidically coupled to a turbine; a side-hinged valve comprising a hinge positioned within a recess of the first scroll or the second scroll and a valve plate rotatable about the hinge between a closed position and an open position; and a dividing wall between the first scroll and the second scroll comprising an opening, wherein in the closed position, the valve plate covers and seals the opening, and in the open position, the valve plate is arranged in the recess and the opening in the dividing wall is exposed. - View Dependent Claims (5, 6, 7, 8)
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9. A dual scroll turbocharger system, comprising:
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a first scroll and a second scroll of a turbine, fluidically separated by a dividing wall, the second scroll comprising a recess; an opening in the dividing wall between the first scroll and the second scroll; and a branch communication valve comprising a hinge positioned within the recess and a valve plate rotatable about the hinge between a first position, wherein the valve plate covers the opening in the dividing wall fluidically separating the first scroll and the second scroll where, in this first position, the first scroll fluidically couples a first exhaust port to the turbine and the second scroll fluidically couples a second exhaust port to the turbine, and a second position, wherein the valve plate is within the recess allowing fluidic communication between the two scrolls. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. An engine-driven vehicle, comprising:
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a dual scroll turbocharger system comprising a first scroll and a second scroll, the first scroll and the second scroll fluidically coupled to a turbine and fluidically separated by a dividing wall, the second scroll comprising a recess and the dividing wall comprising an opening; and a branch communication valve comprising a hinge positioned within the recess and a valve plate rotatable about the hinge between a closed position in which the valve plate covers the opening in the dividing wall fluidically separating the first scroll and the second scroll where, in this closed position, the first scroll fluidically couples a first exhaust port to the turbine, and an open position in which the valve plate is within the recess allowing fluidic communication between the two scrolls. - View Dependent Claims (17, 18, 19, 20)
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Specification