foreigneRS

new development from Antonov that allows a supercharger or other ancillary to be driven at 2 (or more) different different ratio's, allowing high boost at both low and high engine speed. could be the way forward



http://www.antonov-transmission.com/amm.htm

Antonov Mechanical Module
The Antonov Mechnical Module is based on Antonov original patents. The principle is to control the shift with the use of centrifugal force and axial thrust generated by helical gears under load. Therefore, they can work as autonomous self-adapting modules without the need for hydraulic actuation or electronic control.

Lubrication can take place with a small internal pump or using existing oil flows of the driven element.

Possible applications range from optimising an engine supercharger for a car or a boat, to improving car accessories and compressor drive, as well as for transmissions on small recreational vehicles.

The Antonov Mechanical Module is based on one of the first and fundamental inventions of Roumen Antonov. The heart of the device is a self controlling, fully mechanical shift system. It was the principal of balancing shift loads between a speed related load from a centrifugal mechanism and a torque related load from the helical gears. This balance enables smooth, clean shifts to be made across the load and speed range with shifting occurring at higher speeds under higher loads (see diagram).

This concept was initially applied to vehicle transmissions, but the very high demand for shift control did not suit the system characteristics. Work continues to apply the system to ultra low cost and micro cars, but the unit has already found application in areas where a simple two or three speed unit is required. Production is underway for a 2 speed supercharger drive and development work continues on a range of other applications including electric vehicle drives, all terrain vehicles and engine front end and accessory drives.

http://www.antonov-transmission.com/supercharger.htm

Supercharger Drive

Market Issues

Superchargers provide better drivability than turbochargers but to obtain good boost at low engine speeds leads to inefficient operation at high engine speeds
Variable speed drives (eg electric drive) have too high a powerloss to show significant overall gains

Problem Statement

How to achieve a compact, low cost and highly efficient multi-speed drive to a supercharger?
Antonov Solution

Use of a single AMM packaged into the input of the supercharger drive provides a 1.4:1 step up at lower engine speeds
No external controls are required but a simple solenoid control to allow the EMS to fine control the exact shift points for better engine control can be provided

High transmission efficiency ensures full use of the efficiency gains from better supercharger operation

Status

Manufacturing partner in place for low volume manufacture
Sales underway to niche vehicle makers and US aftermarket distributors
Discussions on higher volume applications underway

The compact Antonov Module complements the Rotrex unit to provide easy installation.

The addition of the 2 speed drive provides oustanding low speed engine torque

Anonymous

I dont know why they dont just do it on a CVT type arrangement with an electronically controlled ratio and then you could map it against RPM and load.

Stavros

I put that in J-Tuner about 4months ago

Looks promisisng tho dont it

foreigneRS

what is j-tuner steve? is that a mag you buy in shops? does it often have interesting tech stuff, or just full of blitz adverts and shit?

Anonymous

that was far too good a guess for someone who hasnt read it

Mike Rainbird

iTrader: (3)

The first few issues have actually been good with feature cars from Japan and it spends a lot of time on regaling info on the Jap car culture, rather than the UK's interpretation of it...

foreigneRS

sounds interesting. working for a japanese company and having been there a few times it sounds quite interesting. i'll have to have a flick through when i'm back in england