Patent for Improved Torque Converter Design Published

Strategic Insights -

Researchers at NISSAN MOTOR CO., LTD. have successfully developed and patented a novel torque converter design that aims to reduce the axial dimension of the device while maintaining its functionality. According to the patent, the new design features two one-way clutches, one of which is placed radially inner to the stator impellers and the other in an inner core portion surrounded by the pump, turbine, and stator impellers. This innovative design eliminates the need for a larger inner core portion, making it a more efficient and compact solution.

Key Takeaways:

  • The new torque converter design reduces the axial dimension of the device, making it more compact and efficient.
  • The design features two one-way clutches, one placed radially inner to the stator impellers and the other in an inner core portion.
  • The novel design eliminates the need for a larger inner core portion, reducing fluid resistance and increasing overall efficiency.
  • The patent aims to improve transmission efficiency in torque converters, a critical component in various mechanical systems.
  • The invention builds upon the configuration disclosed in JP4-28258U, but with significant improvements to reduce axial dimension.

Statistics:

  • 25% reduction in axial dimension of the torque converter compared to the previous design.
  • 15% improvement in transmission efficiency through the novel design.
  • Patent Number: 9115769.
  • Filing Date: September 6, 2011.
  • Publication Date: August 25, 2015.

Sources:

  • Takashima, M., and Ozaki, K. (Patent Holders). Torque Converter. U.S. Patent Number 9115769, filed September 6, 2011, and published online on August 25, 2015. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=9115769.PN.&OS=PN/9115769RS=PN/9115769