Bristol Compressors and DHX Electric Machines Partner to Develop New Compressor for HVAC&R

Bristol Compressors International, LLC and DHX Electric Machines, Inc. announced an exclusive global strategic partnership to develop Next Gen HVAC&R compressor technology leveraged by ultra-high torque density electric motors with patented micro-feature enhanced "Direct Winding Heat Exchanger" DwHX cooling system. Through this partnership, Bristol and DHX will develop and deliver the most cost effective high efficiency compressors and systems in the industry.
DwHX is the future of HVAC&R compressor motor technology. The DwHX cooling system targets the main source of heat by placing the micro cooling flow channel adjacent to the windings in the center of the slot-- increasing the surface area and local fluid velocities leading to a 25x improvement in cooling capability over standard flow channels.
"The DwHX patented motor technology will allow Bristol to develop compressors that are shorter in height and lighter in weight than anything on the market today. Furthermore, we will do all of this with 'best in class' efficiency levels across the board. Our customers and their system designers will now have more space design options with improved system efficiency at the lowest applied cost," says Kevin Mumpower, Vice President of Product Engineering, Bristol Compressors.
"We believe that this new motor technology is poised to significantly improve cost/performance ratio, add system design flexibility, as well as enable short and long-term regulatory system compliance. This will fundamentally change the HVAC&R industry's expectations of compressor performance," says Luka Lojk, VP Sales and Marketing, Bristol Compressors. Dr. J.Rhett Mayor, President & CEO of DHX Electric Machines, Inc. added that "DHX looks forward to partnering with Bristol and we're excited to see the years of R&D on the DwHX cooling system evolving into a disruptive technology offering in the HVAC&R market."
The Washington County-based manufacturer has an exclusive global partnership with DHX Electric Machines to develop new high efficiency compressors and systems.
“This agreement means nobody else can use this technology but Bristol Compressors,” Mumpower said. “That is huge. A current motor we use weighs 25 pounds. This one weighs seven pounds. It’s more efficient, lighter weight, lower cost and it’s allowing us to change the industry with this motor. It’s hard to explain how much of a game changer this is. We’ve never had the opportunity to use a motor like this in a compressor.”
The DwHX patented motor technology will allow Bristol to develop compressors that are shorter, lighter and more efficient than anything on the market today, Mumpower said.
The motor development is supported by a previously confidential $1 million, three-year research grant from the Virginia Tobacco Region Revitalization Commission that was matched by $1 million from the company, Mumpower said.
The company is about six months into that development program.
“What it means to us is future growth,” Mumpower said. “This is about really growing the business. We expect to grow our business significantly in the next three to five years.”
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