Rune V Hellgren

Title: Innovations by Rune V Hellgren in Gun Projectile Technology

Introduction

Rune V Hellgren is a notable inventor based in Stockholm, Sweden. He has made significant contributions to the field of projectile technology, particularly with his innovative designs aimed at enhancing performance and efficiency.

Latest Patents

Hellgren holds a patent for a gun projectile arranged with a base drag reducing system. This invention involves a gun-launched projectile that features a chamber designed to generate combustion gases from a propellant grain. The chamber is equipped with at least one gas outlet in its base plane. The propellant grain is specifically designed with a burning area, mass, and static burning rate that are related to the area of the gas outlet. This configuration allows for a low mass flow of gaseous combustion products to continue from the time of muzzle exit for a significant portion of the projectile's flight. As a result, there is a substantial decrease in base drag, which leads to an increase in projectile range. The pressure in the combustion chamber during flight only slightly exceeds the base pressure by an amount ranging from 0.01 to 0.5 bar.

Career Highlights

Throughout his career, Rune V Hellgren has focused on developing advanced technologies that improve the performance of projectiles. His work has been recognized for its innovative approach to reducing drag and enhancing range, making significant strides in the field of ballistics.

Collaborations

Hellgren has collaborated with notable colleagues such as Nils-Erik Gunners and Torsten Liljergren. These partnerships have contributed to the advancement of his projects and the successful development of his patented technologies.

Conclusion

Rune V Hellgren's contributions to gun projectile technology exemplify the impact of innovative thinking in engineering. His patent demonstrates a commitment to enhancing performance through scientific advancements.