Michael R Thelen

Title: Michael R. Thelen: Innovator in Engine Noise Control Technologies

Introduction

Michael R. Thelen is a notable inventor based in Sterling Heights, MI (US). He has made significant contributions to the field of engine noise control technologies, holding 2 patents that showcase his innovative approach to reducing vibrations and noise transmission in automotive applications.

Latest Patents

One of his latest patents is for acoustic bumpers with engine front cover hidden mounting. This invention provides novel acoustic bumpers that can dampen vibrations and control noise transmission from an engine front cover or other components. In one embodiment, the front cover carries a water pump and internal water distribution passages, covering an overhead camshaft drive mechanism and an oil pump mounted on the engine block. Noise control of unsupported cover central portions is achieved through acoustic bumpers carried on inside cover bosses, engaging surfaces in accessible locations on the engine block front face or on associated components. The acoustic bumpers may be doughnut-shaped annular rings with identical coaxial locating recesses on opposite sides for error-free installation. A central web between the recesses includes an axially located retainer hole, and each bumper may be mounted on a pillar on the inside cover face that includes a fastener receiving blind hole centrally located on a raised circular boss.

Another significant patent is for an engine with an oil pump muffler and noise damper. This invention features a wrap-around cover or noise muffler made of oil and temperature-resistant noise-absorbing resilient elastomer. It covers the front and sides of a front-mounted engine oil pump, forming a pump and muffler assembly. The muffler absorbs vibrations and reduces the transfer of noise frequencies from the oil pump to the engine front cover that covers the pump. Additionally, the front of the muffler is shaped to fill the gap and engage the front cover in compression between the oil pump and the rear surface of the front cover, thereby damping vibrations of the front cover adjacent to the oil pump and to an accessory drive pulley that rotates ahead of the front cover for driving accessories.

Career Highlights

Michael R. Thelen is currently employed at GM Global Technology Operations, Inc., where he continues to develop innovative solutions for automotive engineering challenges. His work focuses on enhancing the performance and comfort of vehicles through advanced noise control technologies.

Collaborations

Michael collaborates with fellow inventor Carl Eric Fonville, contributing to