The electrically driven general purpose actuator GPA can be used both for diesel and gasoline engines.

Function

• Adjustments at intake manifolds, e. g. swirl and tumble flaps, and the switching of intake manifold length
• Electrical drive for a variety of flap applications. For instance, for bypass flaps in the exhaust and/or intake air paths
• Turbo charger with variable turbine geometry

In addition to the basic version, a number of variants with position feedback are available.

• Compact construction
• Low weight
• Simple design
• In its function as an all-in-one unit, the GPA replaces a number of individual components. For example, switching valve, vacuum unit, vacuum accumulator,and a variety of levers and hose connections

Fuel retention systems prevent emissions caused by the eva-poration of fuel from escaping to the ambient air. An active carbon filter captures the fuel vapours. When the engine is in operation, these vapours are mixed with the intake air via the vacuum in the intake manifold. Canister purge valves control the flow of air through the active carbon filter independent of the engine's operating state.

The high-performance TEV canister purge valve constructed of plastic complies with all the requirements of manifold injection and gasoline direct injection.

Pressure compensation

Integrated pressure compensation between intake manifold and ambient air means that the magnet does not need to overcome any differences in pressure.

• It can thus be designed to smaller dimensions (less weight)
• It is thus suitable for fitting to the engine higher dynamic
• characteristics a lower dependence on pressure
• greater vibration strength

• Favourable price-to-performance ratio
• Optimized triggering when minimal amounts are detected, giving quiet idling
• Steeper rise of characteristic line
• High maximum flow
• Installation on engine generates less noise
• Integrated protective sieve prevents accumulation of dirt
• Compact and light
• Quick and simple fitting

The accelerator-pedal module is a ready-to-install unit with pedal-travel sensor and idle and full-load stops. A kick-down switch is incorporated when the module is used with automatic gearboxes. Mechanical and electronic components form a single functional unit. An integrated intended fracture point ensures good crash behaviour.

We supply sturdy, accelerator-pedal modules with a long service life for gasoline and diesel engines in passenger cars and light goods vehicles. These compact, light APMs are designed on ergonomic principles and can be supplied with suspended or upright pedal as well as with a customer-specified plug. The range comprises a number of basic variations which can be used on any specific vehicle with a minimum of work.

A potentiometer or contact-free sensor registers the exact position of the accelerator pedal. A high degree of mechanical precision is also guaranteed, with very little pedal play and minimal tolerances.

Good crash behaviouristics are guaranteed by an integrated predetermined fracture point.

• Sturdy construction, long working life
• Small fitting volume
• Low weight
• Low noise
• Very good sealing properties
• Vehicle-specific applications require little modification
• High degree of precision
• Good crash behaviour thanks to integrated intended fracture poin

The electronically controlled throttle-valve device (DV-E) is the central actuator element in the ETC/E-GAS system for gasoline engines. It comprises the throttle valve with electric drive and throttle-valve-angle sensor.

Using the position of the accelerator pedal, the engine control unit calculates the required opening of the throttle body, the ignition angle and the quantity of fuel to be injected.

A DC motor adjusts the throttle-valve shaft through gearing. The advantages here are: High torque levels, low energy consumption, low weight, and tried-and-tested reliability.

The throttle body angle sensor monitors the current position of the throttle body and thus permits the position of the throttle valve to be precisely maintained.

• Lower consumption
• Higher degree of reliability
• Cost-favourable
• Greater freedom in engine design and application