Generating unit comprising a combustion engine and a generator

Details Generating unit comprising a combustion engine and a generator Generating unit comprising a combustion engine and a generator

H - Electricity

02

K

H02K 5/173 (2006.01) H02K 7/00 (2006.01)

Patent

CA 2689860

A power generation unit consists of an internal combustion engine (1) and a generator (2), the former comprising a crankshaft (8) received in a crankcase (5) and the generator comprising a generator housing (20) connected to the crankcase (5), a stator (36) and a rotor (30) that is connected so as to rotate with the crankshaft (8). The aim of the invention is to provide a power generation unit that requires little space and that allows a precise guidance of a rotor designed for the overall unit power. A concentric shaft journal (11) is non-rotationally connected at the one end to the crankshaft (8) and at the other end to the rotor (30). The generator housing (20), on its side facing the internal combustion engine (1), has a front plate (21) that accommodates a bearing (23) for the shaft journal (11). The rotor (30) is otherwise mounted in a floating manner.

L'invention concerne un groupe électrogène composé d'un moteur à combustion interne (1) et d'un générateur (2), le moteur présentant un vilebrequin (8), monté dans une carcasse de moteur (5), et le générateur présentant une carcasse de générateur (20), reliée à la carcasse de moteur (5), un stator (36) et un rotor (30) solidaire en rotation du vilebrequin (8). L'objectif de l'invention est de permettre, pour un faible encombrement, le guidage précis d'un rotor étudié pour la puissance moteur totale. A cet effet, un bout d'arbre concentrique (11) est solidement relié, d'une part, au vilebrequin (8) et, d'autre part, au rotor (30); la carcasse de générateur (20) présente, sur sa face tournée vers le moteur à combustion interne (1), une plaque frontale (21), recevant un palier (23) pour le bout d'arbre (11), et le rotor (30) est, par ailleurs, placé en porte-à-faux.

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