Valves aid quad-turbo engine upgrade
An
AMOT product story
Edited by the Engineeringtalk editorial team
Mar 27, 2007
Perkins required more power from its AMOT 4012 engine and decided to upgrade from a bi-turbo charger to a quad-turbo charger arrangement.
AMOT has proven its custom valve solutions capabilities in tailoring a new air intake shut-off valve for the Perkins 4012 and 4016 diesel engines.
The Stafford-based company required more power from its 4012 engine and decided to upgrade from a bi-turbo charger to a quad-turbo charger arrangement for this engine configuration, which is used mainly for electrical power generation.
Preventing potentially destructive run-away caused by hydrocarbon vapours and mechanical failure, the existing engine used two AMOT SpeedTrap 4262M air shut-off valves, each attached to a turbo-charger by way of a suction line comprising pipes and hoses.
The design remit given to AMOT was not only to accommodate two turbo chargers per valve, but also to do this in a compact, easy-to-assemble design.
The compact design was required to ease the servicing of components around the radiator and ease of assembly was required to improve factory efficiency.
AMOT integrated the 4262M valve components into the existing casting, resulting in a much more compact solution.
Now with one special valve feeding two turbochargers there are fewer components for Perkins to purchase and assembly time has been reduced.
Fewer components mean there is more space on top of the engine, which eases and speeds up servicing, since there are fewer parts to disassemble and re-assemble.
Compact AMOT SpeedTrap valves choke off engine intake air to provide effective shutdown in the event of over-speed caused by mechanical failure or intake of hydrocarbon vapours.
Standard materials are LM6 aluminium valve body, disc and safety control operator, stainless steel valve shafts and Viton seals handling intake air temperatures up to 70C.
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