Drive for one or more engine accessories
AssigneePerkins Engines Company Limited
InventorHoward J. Lawrence
Life of this patent
Estimating the term…
Abstract
Engine accessory drives are used with internal combustion engines to drive one or more accessories and are conventionally driven off a front end drive assembly. However, driving the accessories off the front end drive assembly has implications in respect of both increased engine noise and extended engine length. An engine accessory drive in accordance with this invention reduces engine noise and engine length. An engine accessory drive for transmitting a force between a first end (2) and a second end (3) of an engine (1) comprises a primary drive (18) locatable at the first end (2) of the engine.
Claims7
An engine accessory drive comprising:
- a primary drive locatable at a first end of the engine;
- a first balance shaft externally mountable of the engine and drivable by said primary drive;
- a secondary drive locatable at a second end of the engine and drivable by said first balance shaft;
- a second balance shaft externally mountable of the engine and drivable by said secondary drive;
- and
- an engine accessory drivable by said secondary drive.
An engine accessory drive as claimed in any preceding claim, wherein the first end of the engine is a rear end of the engine, and the second end of the engine is a front end of the engine.
An engine accessory drive as claimed in any preceding claim, wherein the primary drive includes a drive selected from the group comprising:
- a gear drive;
- a belt drive;
- and a chain drive.
An engine accessory drive as claimed in any preceding claim, wherein said first balance shaft is provided with a toothed pulley at a second end thereof.
Dependencies are inferred from the claim text.