Engine comprising balance shafts locked by a pin
AssigneeRENAULT s.a.s.
InventorPhilippe Gauthier
Life of this patent
Estimating the term…
Abstract
A heat engine including at least one engine block that rotatably receives a crankshaft and a cartridge fixed to the engine block and that rotatably receives a pair of parallel balance shafts, namely a primary shaft and a secondary shaft, which are rotated by the crankshaft. A ring gear is rotationally connected to the crankshaft, permanently meshing with a first pinion borne by one end of the primary balance shaft. In addition, a second pinion, borne by the end of the primary balance shaft, meshes with a pinion borne by one end of the secondary balance shaft. Transverse holes extend through the ends of the primary and secondary balance shafts and are configured to be aligned with one another, before the cartridge is mounted to the engine block, to receive a pin.
Claims6
A heat engine, comprising:
- at least one engine block that rotatably receives a crankshaft;
- a balancer housing fixed to the engine block, which rotatably receives a pair of parallel balance shafts, of a primary shaft and a secondary shaft, which are provided with eccentric weights and that are rotated by the crankshaft;
- a ring gear rotationally connected to the crankshaft to permanently mesh with a first pinion carried by one end of the primary balance shaft;
- a second pinion carried by the end of the primary balance shaft to mesh with a pinion carried by one end of the secondary balance shaft;
- and
- transverse holes extending through ends of the primary and secondary balance shafts and configured to be aligned with one another in a specified position of the primary and secondary balance shafts before the balancer housing is mounted on the engine block, to receive a removable securing element.
Dependencies are inferred from the claim text.