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US 2013/0340726 A1Published application
Engine balancing supercharger
AssigneeFord Global Technologies, LLC
InventorsRay Alan Kach, Michael Bruno Magnan, Robert Andrew Wade, Vince Paul Solferino, David E. Masser, Jeffrey Eliot Chottiner
Life of this patent
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Abstract
An engine is provided. The engine includes a piston operable to reciprocate in a cylinder, a crankshaft rotatably coupled to the piston, and a supercharger rotatably coupled to the crankshaft. The supercharger has an unequal distribution of mass along a longitudinal plane of the supercharger to provide a rotational counterbalance to reduce engine imbalance.
Claims20
An engine comprising:
- a piston operable to reciprocate in a cylinder;
- a crankshaft rotatably coupled to the piston;
- and
- a supercharger rotatably coupled to the crankshaft, the supercharger having an unequal distribution of mass along a longitudinal plane of the supercharger to provide a rotational counterbalance to reduce engine imbalance.
1 more element
An engine comprising:
- a cylinder;
- a crankshaft rotatably coupled to the cylinder;
- and
- a supercharger rotatably coupled to the crankshaft, the supercharger including a first rotor and a second rotor operable to rotate in an opposite direction of the first rotor, and a first counterweight and a second counterweight that opposes the first counterweight to provide a rotating counterbalance to reduce engine imbalance.
1 more element
A method for controlling an engine comprising:
- operating a supercharger having an unequal distribution of mass along a longitudinal plane of the supercharger to provide a rotational counterbalance to reduce engine imbalance;
- and
- opening a bypass valve responsive to a low engine load condition to allow air to flow from a point downstream of the supercharger to a point upstream of the supercharger to lower boost pressure while maintaining operation of the supercharger to provide the rotational counterbalance to reduce engine imbalance.
Dependencies are inferred from the claim text.