Patent ID: 11953120
Assignee: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE CO., LTD
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 5:
6. The champagne tower-type multi-stage throttle control valve according to claim 5, wherein an outer wall of the throttle sleeve has a conical surface structure with a cross-sectional area increased from top to bottom; a valve seat is provided at a top end of the throttle sleeve, and a bottom end surface of the valve seat forms a sealing fit with a top end surface of the throttle sleeve; a valve stem vertically penetrates through the valve cover, then enters into a stepped hole cavity of the throttle sleeve through a coaxial hole at the valve seat, and forms a coaxial fixed fit with the valve core; a fluid hole radially penetrates through the valve seat; the fluid inlet is located at a side of the valve body, and the fluid outlet is located at a bottom end of the valve body; and a medium enters the fluid passage through the fluid hole.