Abstract:
The proposed design involves making the leakage paths as treacherous and long as possible by incorporating labyrinth seal structures in addition to turbo rings which will significantly reduce the pressure subjected to the turbo rings and reduce potential for cross talk. Moreover, the disclosed designs subject a back pressure onto the cavities which will help with sealing by providing flow path resistance. The proposed design also includes a positive displacement device supported by at least one pair of journal bearings, and preferably two pairs of journal bearings. The teachings herein show that such a design significantly improves efficiency and power generation over devices that utilize ball bearings for rotor shaft support. Additionally, the present teachings show that engine oil forced lubrication flow, temperature, and feed pressure are critical for proper functioning of the journal bearings and to obtain optimal flow rates and feed pressure values for different applications.
Abstract:
A multi-speed drive (25) for a supercharger, comprising: a stationary shaft (30, 65, 165): a planetary gear mechanism with a sun gear assembly (83, 183) a plurality of planet gears (130, 230) mounted on a planet carrier (118, 218), and a ring gear (107, 207), all mounted for rotation on the stationary shaft; a rotary-mechanical drive input being received by either the ring gear or the planet carrier, and a rotary-mechanical drive output being provided by the planet carrier when the ring gear receives the input, or by the ring gear when the planet carrier receives the input; a one-way roller clutch (87, 187) disposed coaxially with the planetary gear mechanism, between the sun gear mechanism and the stationary shaft; and, a hydraulically-actuated, clutch assembly (150/152, 250/252) mounted coaxially with the planetary gear mechanism on the stationary shaft, and operably engaging the sun gear and the ring gear to change a gear ratio of the multi-speed drive.
Abstract:
A boost system for providing boost pressure to an air intake manifold of an engine includes a supercharger having rotors and a supercharger input shaft, an electric motor/generator, and a planetary gear set. The planetary gear set operates to transfer torque between the supercharger input shaft, the electric motor/generator and a crankshaft of the engine. The boost system can have a compact configuration.
Abstract:
The present disclosure relates to a boost system that provides boost pressure to an air intake manifold of an engine. The boost system includes a turbocharger and a supercharger that cooperate to provide the pressure boost to the air intake manifold. The boost system also includes a hybrid drive system for powering the supercharger.
Abstract:
An example engine assembly includes: an electric motor (402) coupled to a ring gear (408) via different gear sets (404, 406; 414, 416), each provided with a clutch. An engine is coupled to a carrier (418), and the planetary gear co-operates with a supercharger. The gear ratio between the motor and the engine or the supercharger can be changed by selectively applying the clutches.
Abstract:
A supercharging arrangement for an internal combustion engine is disclosed. The supercharging arrangement comprises a supercharger having a rotational drive input, and a transmission having a rotational drive input to receive drive from an internal combustion engine, and a rotational drive output connected to the input of the supercharger. The transmission includes a variator operatively connected between the input and the output of the transmission, which variator has an output that is driven at an operating ratio from an input. There is a control system that operates to cause an engine to deliver an amount of torque that is indicated by the state of an input to the control system. The control system is further operative to set the operating ratio of the variator.
Abstract:
L'invention concerne d'une part un moteur thermique (1) équipé d'une double suralimentation (2; 3), pour laquelle un compresseur mécanique (3) est entraîné par un moteur électrique (11) et d'autre part un procédé de commande d'un tel moteur thermique (1), dans lequel on commande le moteur électrique (1) en déterminant une consigne de vitesse de rotation du compresseur volumétrique (3) au moyen d'un modèle de remplissage du volume de suralimentation.
Abstract:
Système (1) d'entraînement d'aumoins un compresseur(5), comprenant: -une entrée (2) apte à être reliée à une courroie (3) solidaire d'une machine tournante, -une sortie (4) apte à être reliée au compresseur(5), -un train épicycloïdal (7) dont le planétaire extérieur (11) forme un volant d'inertie et dont le planétaire intérieur (8) est relié à la sortie (4) du système (1), et -un dispositif (15) permettant de modifier la configuration du train épicycloïdal (7) de manière à ce que dernier prenne sélectivement au moins les configurations suivantes: -(i) une configuration dans laquelle le train épicycloïdal (7) est accouplé à l'entrée (2) du système(1), -(ii) une configuration dans laquelle le train épicycloïdal (7) est dépourvu de degré de liberté interne et dans laquelle le train épicycloïdal (7) est désaccouplé de l'entrée (2) du système(1).
Abstract:
A variable speed compressor system (A) incorporating an electric power generation capability by combining a variable-speed compressor assembly (70) with an electric motor assembly (50) via a drive subassembly (30) in a compact unit regulated by a control system (400). The control system (400) facilitates fully controllable boost-on-demand forced-air induction operation across an entire engine speed range, and offers intelligent electric power generation.
Abstract:
A variator has an input shaft (18), an input disc (10) mounted coaxially with the input shaft and rotatable by the input shaft, an output disc (12) facing the input shaft (18) and being mounted coaxially with the input disc, a toroidal cavity defined between the input and output discs and a plurality of rollers (14, 16) located in the toroidal cavity, in roliing contact with the input and output discs (10, 12), each of the rollers being mounted on a roller carriage (17). The variator has means (34) for applying an end load to the variator to urge the rollers (14, 16) into contact with the input and output discs (10, 12) and resiliently deformable means for applying a reaction force to each of the roller carriages.