DROP WINDOW GLASS SEALING UNIT OF VEHICLE DOOR Russian patent published in 1997 - IPC

FIELD: transport engineering door drop windows. SUBSTANCE: device has resilient member formed by outer side wall 3 and inner side wall 4 connected by bottom members 5. Resilient member is mounted on edge 1 of door frame 2. Inner wall 4 has resilient projection 6 forming slot 7 together with inner wall 3 to accommodate glass 8, and hollow end face seal 9, together with inner wall 4. Novelty is that quarter-wave resonator is formed in space of projection 6 tuned in antiphase to frequency of slot resonance hiss appearing at high riding speeds which effectively decreases aerodynamic noises caused by design and technological defects of sealing and at partially opened window. EFFECT: reduced noises. 3 cl, 11 dwg