| 摘要 |
<p>1,080,039. Air filter with by-pass valve. GENERAL MOTORS CORPORATION. July 7, 1966 [Aug. 5, 1965], No. 30468/66. Heading BIT. [Also in Division F2] A by-pass valve (18), which opens to deliver air directly to a turbine engine (10) when air filter (14, 16) normally supplying air to the engine clogs (Fig. 1, not shown), comprises a housing (20) having respective inlet and outlet closure members 30, 60 and a lower inlet 102, members 30 being pivoted about central shafts 36, members 60 pivoting about lower shafts 62 and members 30, 60 being connected to a spring bias means (90--96) (Fig. 2, not shown), whereby, when the differential pressure across members 60 is sufficient to overcome the bias, members 30, 60 open together to pass air from left to right (Fig. 4, not shown). The air filter comprises medium (16), in one side of a casing (12) to which the valve (18) is attached. Members 30, 60 are constructed like overlapping slats of a Venetian blind and are connected to respective vertical rods 52, 74 for simultaneous movement. Link 84 connects one member of each set, and a tension spring (96) attached to one member 60 biases both sets of members to the closed position. Inlet 102 serves to apply ambient air pressure to the left hand side of members 60, the engine's suction acting on their right side.</p> |
