137861 ⎘
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control; Control of additional air supply only, e.g. using by-passes or variable air pump drives using pneumatically operated valves, e.g. membrane valves
Valve device for an internal combustion engine
#2Valve device
#3Exhaust gas temperature control
#4Exhaust heat recovery structure
#5Secondary air introduction device
#6Secondary air system in an exhaust gas purification system of an internal combustion engine
#7FLUID CONTROL VALVE DEVICE
#8Air-assisted reductant delivery system
#9Exhaust manifold air injection device
#10Engine exhaust systems with secondary air injection systems
#11Engine exhaust systems with secondary air injection systems
#12Mechanical vacuum pump integrated with coupled secondary air injection valve
#13Method and System for Controlling Emission from an Off-Road Engine
#14Internal combustion engine with a system for secondary air charging and method for operation of the internal combustion engine
#15Engine exhaust systems with secondary air injection systems
#16Secondary air injection system for an internal combustion engine
#17Air pump having valve controlled by self-pressure