cylinder head cover with integrated camshafts

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Integrated camshafts

Power-up to the next level in engine manufacturing

The cylinder head cover with integrated camshafts.

Turning engine installation into childs-play: with the plug & play concept of the completely preassembled cylinder head cover module from thyssenkrupp. The rules of the game have changed... thanks to the integrated camshafts. Precision-fitted, fast and econmomical.

Optimized combustion engine

Cylinder head cover module with integrated camshafts

cylinder head cover module (Presta²)

Efficiency

Reference

Conventional valve train

Customer benefit

Machining and assembly advantages
Less material for the cylinder head
Simplified cylinder head design
Flexible choice of bearing type (i.e. roller bearings)
Improved hydrodynamics
Lower fuel consumption due to reduced friction
Usage of integrated bearing blocks

Applicability

All Diesel and Otto engines

Friction-optimized plug & play concept

Assembled camshaft

Efficiency

Reference

Conventional valve train

Customer benefit

Weight savings of 30-40% in comparison with a conventional camshaft
Transmission of high dynamic and static torques
Combination of high-quality camshaft materials with inexpensive tube and endpiece materials that are subject to less loading
Lower production effort and expense for further and final processing of the camshafts

Applicability

All Diesel and Otto engines

Variable valve train system – Concentric Cam

Type I – Phasing control (oben); Type II - Duration control

Efficiency

Reference

Conventional valve train

Customer benefit

Control of valve phasing or duration: Reduction of emissions; Increase of engine torque and power; Increase exhaust gas temperature
Replaceability with conventional camshafts
Type 1: phase shifting of single cam lobes on one camshaft
Type 2: extension of the cam lifting curve (variable valve opening time)

Applicability

All Diesel and Otto engines

Variable valve train system to reduce fuel consumption and emissions.

Cost reduction through alternative assembly concept

Camshaft with axial slideable cam lobe packages

Efficiency

Reference

Conventional valve train

Customer benefit

2-stage cam profile switching system (two different valve lifts or valve/cylinder deactivation)
Combination of different materials possible (cam and shifting groove)
Reduced material requirements due to assembly of near net shape components
Sliding cam system in combination with cylinder head cover module: Module ready for assembly; Reduces assembly effort at customer side; Reduced system costs; Optional: reduced friction due to unsplit bearings

Applicability

Diesel and Otto engines

Process steps can be omitted through the application of assembled sliding cam pieces.

Electric drive

New assembly concept optimizes function and costs

Assembled rotor

Efficiency

Reference

Conventional rotor

Customer benefit

Modularity and scalability of the whole built (scaling of motor axial length)
Innovative architecture enables free material choice for each component according to function (f.e. direct for direct bearing and toothing)
100 % quality management by stroke – force measurement of all press joints
Very high potential for weight reduction with dual benefits – translational and rotational
Increase in packaging space for integration of additional functions

Applicability

Electric engines

Lightweight design with packaging space for functional integration

New assembly concept optimizes function and costs

Assembled rotor shaft

Efficiency

Reference

Conventional rotor shaft

Customer benefit

Stress-related combination of different materials on one shaft
Less machining effort due to design close to finished size
Less internal tension in the electrical sheets due to combined press and form fit
100% quality data recording for each connection
Integration of functions possible by using the available space in the rotor shaft

Applicability

BEV and hybrid applications

Additional assembly of the lamination stacks using the Presta process offers further potential.