Trelleborg introduces new automotive hydromount

ERJ staff report (RD)

Trelleborg, Sweden - Trelleborg Automotive has announced the launch of its new hydromount with vacuum switchable bypass and decoupler to “enhance engine vibration isolation and optimise idle isolation,” the company said recently.

Believed to be the only mount of its kind on the market, according to Trelleborg, it provides enough damping to mitigate powertrain shake and provide comfort, yet being soft enough to ensure isolation during engine idling, the statement said. The mount has satisfied stringent customer testing and is already in use on the BMW 5, 6 and 7 Series diesel vehicles, Trelleborg added.

The Vacuum Switchable Hydromount comprises a main channel between two hydraulic chambers to dampen road shake, a switchable decoupler for improved engine vibration isolation during driving and a switchable secondary channel (the bypass) for optimum idle isolation. During engine idling, Trelleborg's solution opens the bypass and restricts decoupler motion to provide perfect isolation in the main engine excitation frequency range. When driving, the mount switches the decoupler back on for better isolation of high rpm engine vibrations - simultaneously closing the bypass for comfortable road shake damping.

“This system really comes into its own with diesel engines, which, due to higher noise and vibration levels, require particular attention to reduce noise, vibration and harshness,” said Advanced Engineering manager at Trelleborg Automotive, Enrico Kruse.

“At the same time, ever-tightening emissions standards are driving the development of smaller petrol engines with direct injection or turbo-charging”, he adds. “With these engines invariably producing more vibrations, we are finding an increasing requirement for switchable mounting solutions.”

This is an external link and should open in a new window. If the window does not appear, please check your pop-up blocking software. ERJ is not responsible for the content of external sites.

Trelleborg introduces new automotive hydromount from Trelleborg Automotive