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  • Automotive Industry
  • Powertrain
  • Chassis
  • Body and Structure
  • Control and Electronics
  • Dynamics and Performance
  • Service
    • About
    • Contact

Concentric camshaft variable valve timing (VVT) system for gasoline engines

1/22/2015

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The cam-within-a-cam consists of a solid intake camshaft within a hollow exhaust camshaft. The solid shaft has holes for cylindrical pins, located at five points that align with axial slots in the hollow outer shaft.
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Camshaft-within-a-camshaft design (Mahle's CamInCam)
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Dodge Viper engine (Gen IV)
Assembled steel articulating camshaft to allow controlled phasing of the exhaust valve event.
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Turbocharging controls

1/18/2015

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Porsche 917 Can-Am

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Wastegate
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Atkinson Cycle/Miller System

1/14/2015

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Combining Atkinson cycle with turbocharging is nothing new. It is called the Miller cycle, or perhaps more correct, Miller system. 
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2015 NSX Engine Top View

1/12/2015

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Next Generation Acura NSX - Longitudinally mounted twin-turbocharged 75-degree DOHC V6 engine
The V6 engine employs a race-inspired compact valve train and dry sump lubrication system to help lower the center of gravity.

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Electric Supercharging - Power electronics

1/8/2015

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Electric compressor
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Location
The main reason for this location is to reduce the volume to be compressed downstream of the electric compressor.
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Electric power
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12- and 48-V vehicle electrical system
The electric compressor’s power is provide by the 48-V on-board system.
Enabling actuation of the electric compressor is linked to safety and energy-efficiency related conditions. Fault-free electric compressor hardware, including the 48-V vehicle electrical system, is essential for the electric compressor to be enabled.
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Air Intakes

1/6/2015

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918 Spyder
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One-77
Carbon fibre engine air intakes
Intake air flow through bodywork
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