Porsche Patent Unveils Ingenious Engine Advancements

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Porsche’s Unearthed Patent Harnesses Leaky Pistons and Turns Blow-By into A Good Thing.

In a recent revelation, an undisclosed Porsche engine development patent has surfaced, shedding light on a groundbreaking approach to leverage blow-by, typically seen as a setback in engine performance. The documentation, uncovered from the German Patent and Trade Mark Office, unveils Porsche’s quest to streamline and simplify engines by introducing a self-starting mechanism.

Porsche Headquarters in Stuttgart, Germany
Photo: Joseph Younis

The patent intriguingly explores the adaptation of racecar direct start systems for conventional road vehicles, with a particular focus on hybrids. The primary challenge addressed is the immediate ignition requirement when the electrical charge in hybrid vehicles is depleted. Unlike racecars, which have their engines pre-warmed in pits, road cars, especially hybrids, don’t have the luxury of time.

This Patent Could Greenlight the Future of Cars Like the Porsche 911 GT3 – Photo: Matti Blume

Porsche’s innovative solution involves controlling the inherent blow-by characteristics of combustion engines and managing the compression of each cylinder. The key idea is to create an environment with minimal resistance to starting. Traditionally, electrical starter motors are employed in such scenarios, but they come with the drawback of reserving energy for subsequent engine starts, adding unnecessary weight to the hybrid system.

Porsche Patent hopes to enxtend the life of the cylinder head of an engine
Blow-by is a major source of engine problems and Porsche is not immune

The proposed technology delves into the intricacies of combustion engine blow-by, where escaping gases are typically considered wasted energy. Porsche aims to harness this potential energy by altering the design of each cylinder to reduce inertia in the ignition sequence. One compelling concept involves integrating temperature-sensitive seals on each piston. These seals can expand at a predefined temperature and contract after a certain number of ignitions, effectively increasing the blow-by rate and minimizing piston and connecting rod inertia.

Porsche new Patent Hopes to Provide longevity
Porsche V8 – Photo: The Car Spy

How Porsche Engine Patent Alters Blow-by Rates

Porsche envisions a carefully orchestrated compression strategy for each cylinder, making the ignition process more efficient with each cycle. The blow-by rates are anticipated to vary within a specified range, ensuring controlled and optimized engine performance.

Porsche Flat-six Aircooled out of a 911
Photo: Bill Abbot

While Porsche acknowledges that direct starting may face challenges in extreme conditions, such as extreme cold, the benefits are significant. The proposed technology not only promises a more straightforward, smaller, and lighter starter motor but also reduces potential damage to cylinder walls and piston rings during the initial ignition moments.

This cutting-edge tech, if implemented, could revolutionize the efficiency of vehicles like the Porsche 911, offering a weight-saving solution that might just extend the life of traditional combustion engines. This comes at a time when other major manufacturers are reporting increased sales from changes in their linups. The undisclosed patent hints at a future where automotive innovation takes unexpected turns, paving the way for sustainable and efficient solutions.

porsche patent
Porsche has a long history of innovation.
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