초록 ▼

A modular air shut-off valve, particularly useful within the air conditioning environmental control system of an aircraft, is provided, which comprises a housing sized for insertion into a duct of the air conditioning system, a vane pivotally mounted within the housing for pivotal movement between o

A modular air shut-off valve, particularly useful within the air conditioning environmental control system of an aircraft, is provided, which comprises a housing sized for insertion into a duct of the air conditioning system, a vane pivotally mounted within the housing for pivotal movement between open and closed positions and having flexible portions along its edges contacting the housing in the closed position for providing a resilient seal and to allow pressure relief in the event of overpressure within the duct.

대표청구항 ▼

A modular air shut-off valve configured for insertion into an air conditioning duct, comprising: a. a housing, including first and second pairs of confronting sidewalls, said housing sized for insertion into said air conditioning duct, said walls defining an inlet and an outlet at respective ends of

A modular air shut-off valve configured for insertion into an air conditioning duct, comprising: a. a housing, including first and second pairs of confronting sidewalls, said housing sized for insertion into said air conditioning duct, said walls defining an inlet and an outlet at respective ends of said housing and a passageway of substantially rectangular cross section for passage of air through said housing; b. a vane mounted between said first confronting sidewall pair for pivotal movement, about an axis intersecting each said first sidewall pair at corresponding points between a first sidewall of said second sidewall pair and a center line extending between said inlet and outlet and defined along said passageway, between a closed position at which said passageway is substantially blocked and an open position at which said passageway is substantially open, said vane having a first portion mounted generally between said axis and said first sidewall of said second sidewall pair for rotation toward said inlet in said open position, and a second portion of area larger than said first portion mounted generally between said axis and the second sidewall of said second sidewall pair for rotation toward said outlet in said open position, each of said portions having flexible margins along corresponding edges of said vane for resiliently contacting said second sidewall pair in said closed position; and c. pressure actuating means connected to said vane for selectively pivoting said vane between said open and closed positions.