Vaico v202955engine blocks
Operating Mode: Electric-hydraulic - Supplementary Article, complementary info 2: With Sealing Ring - For OE number: 11 36 7 843 117 - Number of Poles: 2 - Connector Body Shape: Rectangular
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Vaico V20-2955 Engine Block Overview
The Vaico V20-2955 engine block is a high‑performance component designed for precise camshaft control in modern internal combustion engines. It serves as the core of the valve timing system, enabling dynamic adjustment of cam profiles to optimize power delivery, fuel efficiency, and emissions compliance.
Key Functionalities
- Dynamic Cam Timing: The block incorporates an electro‑hydraulic actuator that adjusts camshaft phasing in real time based on engine load, speed, and throttle position.
- High‑Precision Actuation: Built with a toleranced hydraulic chamber, the V20-2955 delivers sub‑millimeter accuracy in valve timing adjustments.
- Robust Sealing System: A specially engineered sealing ring ensures leak‑free operation under high pressure and temperature conditions.
- Compact Design: The block’s streamlined geometry allows integration into tight engine bay spaces without compromising airflow or cooling efficiency.
Engineering Specifications
| Parameter | Description |
|---|---|
| Material Composition | High‑strength alloy steel with heat‑treated surface layer for wear resistance. |
| Operating Temperature Range | -40 °C to +120 °C |
| Pressure Rating | Up to 350 bar hydraulic pressure |
| Actuation Speed | 0.5–2 ms per cycle, enabling rapid response to engine dynamics. |
| Sealing Ring Material | Polyurethane composite with integrated anti‑wear coating. |
| Mounting Interface | Standardized flange compatible with OEM and aftermarket camshaft assemblies. |
Application Areas
The V20-2955 is engineered for use in a wide range of automotive powertrains, including:
- High‑performance sports cars requiring aggressive torque curves.
- Commercial vehicles where fuel economy and emissions are critical.
- Hybrid power units that demand seamless integration between electric and combustion systems.
Installation Guidelines
Proper installation is essential to maintain the integrity of the cam timing system. Follow these steps:
- Preparation: Clean all mating surfaces with a solvent compatible with high‑temperature lubricants.
- Alignment: Use precision alignment tools to ensure the block’s internal axis matches the engine’s crankshaft orientation within ±0.02 mm.
- Sealing: Apply the polyurethane sealing ring uniformly, avoiding air pockets that could compromise hydraulic pressure.
- Hydraulic Connection: Connect the actuator to the engine’s hydraulic supply line using high‑grade fittings rated for 350 bar.
- Calibration: Run a diagnostic sequence to verify cam phasing accuracy across the full RPM range.
Maintenance and Longevity
The V20-2955 is designed for low‑maintenance operation. Nonetheless, periodic checks are recommended:
- Inspect sealing ring integrity every 10,000 km or after any engine overhaul.
- Verify hydraulic fluid purity and replace according to the manufacturer’s service interval.
- Check for abnormal vibrations that may indicate misalignment or wear.
Performance Benefits
Integrating the Vaico V20-2955 into an engine management system yields measurable advantages:
- Improved throttle response due to real‑time cam adjustment.
- Enhanced fuel economy by optimizing valve overlap during cruising conditions.
- Reduced emissions through precise control of combustion timing and duration.
- Extended component life thanks to the high‑durability alloy construction.
Compatibility Matrix
The V20-2955 is compatible with a variety of engine architectures. Below is a concise compatibility overview:
| Engine Type | Supported Models |
|---|---|
| Inline‑4 | Various OEM and aftermarket configurations. |
| V6 | High‑performance variants with dual camshafts. |
| Hybrid Power Units | Systems requiring synchronized hydraulic actuation. |
Conclusion
The Vaico V20-2955 engine block represents a pinnacle of precision engineering in camshaft control technology. Its robust construction, advanced sealing mechanisms, and rapid actuation capabilities make it an indispensable component for modern engines that demand both performance and efficiency.
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Identifiers
VAICO is a brand of car parts and accessories. It was founded in 1988 and is headquartered in Germany. The brand offers a wide range of products, including filters, brakes, clutches, and more.

