SUPERCHARGING PLANT Russian patent published in 1999 - IPC

FIELD: temperature control units in aeronautical engineering and rocketry. SUBSTANCE: supercharging plant includes housing with inlet and outlet branch pipes and two centrifugal superchargers whose inlet and outlet cavities are combined respectively with inlet and outlet branch pipes; it is also provided with double-acting check valve fitted between inlet cavities of superchargers. Housing has through bore; centrifugal superchargers are mounted at one end of bore coaxially relative to each other with their impellers directed towards each other, thus forming common inlet cavity between superchargers which is connected with inlet branch pipe. Double-acting check valve is made in form of ring immovably mounted relative to housing; it is provided with reciprocating guides for rod coaxially arranged in ring; plates mounted on this rod are located at opposite ends of ring for closing the clearance between plates and respective end faces of ring at extreme positions of rod; ring is provided with passage extending to its inner surface; this passage is used for connecting the inlet branch pipe with common inlet cavity. EFFECT: reduced overall dimensions of plant; facilitated manufacture. 1 dwg