초록 ▼

This invention relates to a floating seal system for rotary devices to reduce gas leakage around the rotary device in a duct and across the face of the rotary device to an adjacent duct. The peripheral seal bodies are made of resilient material having a generally U-shaped cross section wherein one o

This invention relates to a floating seal system for rotary devices to reduce gas leakage around the rotary device in a duct and across the face of the rotary device to an adjacent duct. The peripheral seal bodies are made of resilient material having a generally U-shaped cross section wherein one of the legs is secured to a support member and the other of the legs forms a contacting seal against the rotary device. The legs of the peripheral seal form an extended angle of intersection of about 10°to about 30°in the unloaded condition to provide even sealing forces around the periphery of the rotary device. The peripheral seal extends around the periphery of the support member except where intersected by radial seals which reduce gas leakage across the face of the rotary device and between adjacent duct portions. The radial seal assembly is fabricated from channel bars, the smaller channel bar being secured to the divider of the support member and a larger inverted rigid floating channel bar having its legs freely movable over the legs of the smaller channel bar forming therewith a tubular channel. A resilient flexible tube is positioned within the tubular channel for substantially its full length to reduce gas leakage across the tubular channel. A spacer extends beyond the face of the floating channel near each end of the floating channel a distance to provide desired clearance between the floating channel and the face of the rotary device.

대표청구항 ▼

A floating seal system for rotary exchanger mechanisms operated between support members within a divided duct to reduce gas leakage around the periphery of the rotary device and across the face of the rotary device, said seal system comprising peripheral and radial seals comprising: an outer periphe

A floating seal system for rotary exchanger mechanisms operated between support members within a divided duct to reduce gas leakage around the periphery of the rotary device and across the face of the rotary device, said seal system comprising peripheral and radial seals comprising: an outer peripheral seal secured to an outer peripheral surface of said support member juxtapositioned to an outer peripheral flange of said rotary device, said peripheral seal body made of resilient material having a generally U-shape cross section of two legs joined at one end by a central section, one of said legs secured to said support member outer peripheral surface and the other of said legs having on its outer surface low friction material for contact with said rotary device outer peripheral flange, said legs forming an extended angle of intersection of about 10°to about 30°in the unloaded condition to provide even sealing forces against said rotary device outer peripheral flange in loaded condition, said peripheral seal extending completely around the periphery of said support member except where intersected by said radial seals; a radial seal assembly secured to said support member along the divider of said duct, said radial seal assembly comprising a smaller channel bar secured to said divider of said support member, a larger inverted, rigid, floating channel bar having its legs freely movable over the legs of said smaller channel bar and forming a tubular channel therewith, a resilient flexible tube positioned within said tubular channel for substantially its full length to reduce gas leakage across said tubular channel, a spacer near each end of said floating channel extending beyond the face of said floating channel a distance to provide desired clearance between said floating channel and the face of said rotary device, said spacer at each end of said floating channel maintained in contact relation with contact surfaces of said rotary device by spring means near each end of said floating channel coacting between said smaller channel and said floating channel thereby maintaining a controlled clearance between the face of said rotary device and the face of said floating channel bar; and said peripheral seal ends abutting the legs of said floating channel of each said radial seal assembly.