Abstract: A switchable bidirectional power converter can comprise an interleaved bridge configuration. A multi-phase grid connection to a half-bridge multi-phase switching bank can comprise a first switching half-bridge leg. A single-phase grid connection to a full-bridge single-phase switching bank can comprise the half-bridge multiphase switching bank interleaved with the full-bridge single-phase switching bank. The full-bridge single-phase switching bank can comprise the first switching halfbridge leg and a second switching half-bridge leg. A capacitor switch can be configured to switch at least two power factor correction capacitors between a parallel connection and a serial connection. The parallel connection can be to the single-phase switching bank, the first switching half-bridge leg, and the second switching half-bridge leg. The serial connection can be to the multi-phase switching bank and the first switching half-bridge leg. Such can be used in a bidirectional onboard charger.

Abstract: A supercharger constructed in accordance to one example of the present disclosure can include a first shaft portion, a coupling assembly, a clutch rotor and a clutch armature. The first shaft portion can be connected to a pulley. The coupling assembly can couple the first shaft portion to a second shaft portion. The first and second shaft portions can be configured to rotate around a common longitudinal axis. The coupling assembly can be configured to provide torsional damping between the first and second shaft portions. The clutch rotor can be mounted to the second shaft portion. The clutch armature can be mounted to a drive shaft and be unconnected to the first and second shaft portion. The clutch rotor and the clutch armature can selectively cooperate in an engaged position and a disengaged position. In the engaged position, the clutch rotor and the clutch armature rotate together.

Abstract: A supercharger constructed in accordance to one example of the present disclosure can include a first shaft portion, a coupling assembly, a clutch rotor and a clutch armature. The first shaft portion can be connected to a pulley. The coupling assembly can couple the first shaft portion to a second shaft portion. The first and second shaft portions can be configured to rotate around a common longitudinal axis. The coupling assembly can be configured to provide torsional damping between the first and second shaft portions. The clutch rotor can be mounted to the second shaft portion. The clutch armature can be mounted to a drive shaft and be unconnected to the first and second shaft portion. The clutch rotor and the clutch armature can selectively cooperate in an engaged position and a disengaged position. In the engaged position, the clutch rotor and the clutch armature rotate together.

Abstract: A combustion system comprises a supercharger with an operating range from an idled condition up to a maximum rotations per minute (RPM) of its drive shaft. An engine in the system has an engine operating range from an idled condition up to a maximum RPM of its crank shaft, the engine having at least one airflow demand for each RPM in the engine operating range for providing peak torque output. A continuously variable transmission (CVT) is connected to the drive shaft for transmitting a variable amount of rotational energy to operate the supercharger. The control system controls the transmitting of the CVT based on the at least one airflow demand for each RPM in the engine operating range such that the supercharger variably pumps air across the operating range as the engine operates across the engine operating range.

Abstract: A clutch assembly configured for use with a supercharger includes a first shaft supported for rotation within a clutch housing. A pulley is mounted on the first shaft. A clutch rotor is also mounted on the first shaft at a location that is axially spaced from the pulley. A clutch coil is supported within the clutch housing and positioned adjacent to a first face of the clutch rotor. A second shaft is supported for rotation relative to the first shaft and is coaxially aligned with the first shaft. A clutch armature is mounted on the second shaft and positioned adjacent to a second face of the clutch rotor. A supercharger system including the clutch assembly is also provided.

Abstract: An engine system includes a throttle valve configured to variably open and close to selectively restrict a volume of air flow. The engine system also includes a supercharger comprising an air inlet, an air outlet, a rotatable drive shaft and rotors associated with the drive shaft, wherein the supercharger is sized to have a flow rate that substantially prevents backwards leaking of air flow. The engine system further includes a combustion engine comprising combustion chambers and an associated rotatable crank shaft and a continuously variable transmission (CVT) configured to variably transfer rotational energy between the drive shaft and the crank shaft.

Abstract: A combustion system comprises a supercharger with an operating range from an idled condition up to a maximum rotations per minute (RPM) of its drive shaft. An engine in the system has an engine operating range from an idled condition up to a maximum RPM of its crank shaft, the engine having at least one airflow demand for each RPM in the engine operating range for providing peak torque output. A continuously variable transmission (CVT) is connected to the drive shaft for transmitting a variable amount of rotational energy to operate the supercharger. The control system controls the transmitting of the CVT based on the at least one airflow demand for each RPM in the engine operating range such that the supercharger variably pumps air across the operating range as the engine operates across the engine operating range.

Abstract: A clutch assembly configured for use with a supercharger includes a first shaft supported for rotation within a clutch housing. A pulley is mounted on the first shaft. A clutch rotor is also mounted on the first shaft at a location that is axially spaced from the pulley. A clutch coil is supported within the clutch housing and positioned adjacent to a first face of the clutch rotor. A second shaft is supported for rotation relative to the first shaft and is coaxially aligned with the first shaft. A clutch armature is mounted on the second shaft and positioned adjacent to a second face of the clutch rotor. A supercharger system including the clutch assembly is also provided.

Abstract: An engine system includes a throttle valve configured to variably open and close to selectively restrict a volume of air flow. The engine system also includes a supercharger comprising an air inlet, an air outlet, a rotatable drive shaft and rotors associated with the drive shaft, wherein the supercharger is sized to have a flow rate that substantially prevents backwards leaking of air flow. The engine system further includes a combustion engine comprising combustion chambers and an associated rotatable crank shaft and a continuously variable transmission (CVT) configured to variably transfer rotational energy between the drive shaft and the crank shaft.

Abstract: An engine system includes a throttle valve configured to variably open and close to selectively restrict a volume of air flow. The engine system also includes a supercharger comprising an air inlet, an air outlet, a rotatable drive shaft and rotors associated with the drive shaft, wherein the supercharger is sized to have a flow rate that substantially prevents backwards leaking of air flow. The engine system further includes a combustion engine comprising combustion chambers and an associated rotatable crank shaft and a continuously variable transmission (CVT) configured to variably transfer rotational energy between the drive shaft and the crank shaft.

Abstract: A clutch assembly configured for use with a supercharger having a first shaft having a longitudinal axis; a pulley connected to the first shaft; a clutch rotor mounted connected to the first shaft; a clutch armature mounted to a second shaft and unconnected to the first shaft; and a clutch coil spaced along the longitudinal axis from the pulley. The clutch rotor rotates around the longitudinal axis. The clutch armature also rotates around the longitudinal axis. The design diameter of the pulley is entirely independent of the diameters of the clutch rotor, the clutch armature, and the clutch coil. A supercharger including the clutch assembly is also provided.

Abstract: A clutch assembly configured for use with a supercharger comprises a first shaft having a longitudinal axis; a pulley connected to the first shaft; a clutch rotor connected to the first shaft; a clutch armature unconnected to the first shaft; and a clutch coil spaced along the longitudinal axis from the pulley. The clutch rotor rotates around the longitudinal axis. The clutch armature also rotates around the longitudinal axis. The diameter of the pulley is independent of the diameters of the clutch rotor, the clutch armature, and the clutch coil. A supercharger including the clutch assembly is also provided.

Abstract: A supercharger is provided that includes a housing having a first end and a second end. The housing may at least partially define a chamber and may include at least one rotor disposed within the chamber. The supercharger includes an inlet port proximate the first end of the housing and an outlet port proximate the second end of the housing. The supercharger further includes a relief chamber in fluid communication with the chamber. In an embodiment, the relief chamber may extend in the axial direction and may have a depth in the axial direction that is equal to at least about 10% of the axial length of the rotor.

Abstract: A supercharger is provided that includes a housing having a first end and a second end. The housing may at least partially define a chamber and may include at least one rotor disposed within the chamber. The supercharger includes an inlet port proximate the first end of the housing and an outlet port proximate the second end of the housing. The supercharger further includes a relief chamber in fluid communication with the chamber. In an embodiment, the relief chamber may extend in the axial direction and may have a depth in the axial direction that is equal to at least about 10% of the axial length of the rotor.

Abstract: A supercharger drive system that includes a shaft connected to a set of gears; a one-way clutch provided for connection to the shaft; and an actuation controller in communication with the one-way clutch. In an embodiment, the one-way clutch can disengage and rotors or impellers associated with the system are permitted to rotate independently of the one-way clutch.