- Freudenberg developed a new elastomer sealing system for vehicle AC compressor busbars.
- The solution reduces sealing costs by up to 30% while supporting high-pressure CO2 compressors.
Freudenberg Sealing Technologies, a business group of Freudenberg SE, has introduced a new elastomer-based sealing system designed for busbar sealing applications in vehicle air-conditioning compressors. The newly developed solution targets CO2 compressors using R744 refrigerants while also supporting compatibility with additional refrigerant types. The sealing technology has been engineered to handle demanding automotive compressor environments, particularly where high-pressure durability and compact packaging are critical requirements for modern vehicle thermal management systems.
The sealing system demonstrated the ability to withstand leak test pressures exceeding 100 bar during validation procedures. Compared with traditional glass sealing solutions, the elastomer-based design can reduce sealing costs per busbar or pin by as much as 30%. In addition to cost optimization, the compact structure of the sealing solution contributes to improved installation space efficiency inside compressor assemblies. These advantages can support manufacturers seeking lighter, more compact, and cost-efficient compressor architectures for next-generation vehicle platforms.
Freudenberg is currently engaged in multiple development projects with vehicle compressor manufacturers to advance the technology toward commercial deployment. According to the company, the first prototypes have already completed validation activities, marking an important milestone in the development process. The sealing technology is expected to support future compressor designs requiring reliable high-pressure sealing performance for advanced refrigerant systems in automotive applications.
Frequently Asked Questions
What is the new sealing technology developed by Freudenberg Sealing Technologies?
Freudenberg Sealing Technologies has developed an elastomer-based sealing system for busbar sealing in vehicle air-conditioning compressors. The solution is primarily designed for CO2 compressors using R744 refrigerants, although it can also work with other refrigerants. The sealing system withstands leak test pressures above 100 bar and offers a compact design that helps optimize installation space within compressor assemblies. The company states that the technology can lower sealing costs by up to 30% compared with conventional glass sealing solutions used in automotive compressor systems.
What advantages does the new busbar sealing system provide for automotive compressors?
The newly developed sealing system provides several benefits for automotive compressor manufacturers. It delivers high-pressure resistance exceeding 100 bar during testing while reducing sealing costs per busbar or pin by up to 30%. The compact elastomer-based design also improves packaging efficiency and installation space utilization within compressor units. These features can help manufacturers develop lighter and more efficient thermal management systems for vehicles. Freudenberg has already validated initial prototypes and is collaborating with compressor manufacturers on further development projects for future automotive applications.
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