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    • 4. 发明专利
    • COOLING TYPE FLUID REACTION ELEMENT FOR TURBOMACHINERY
    • JP2001164904A
    • 2001-06-19
    • JP2000364275
    • 2000-11-30
    • UNITED TECHNOLOGIES CORP
    • ZELESKY MARK F
    • F01D9/02F01D5/18
    • PROBLEM TO BE SOLVED: To perform effective cooling by a cooling film by effectively utilizing a refrigerant, to prevent excessive discharge of a refrigerant in a region on the low pressure side, and to reduce a stress of a wall. SOLUTION: The airfoil 16 of a cooling type vane 12 is provided with a pair of ribs 42 and 44, having no hole, laterally extending across an internal part. The rib is provided with end parts 52 and 56 on the suction side and end parts 54 and 58 on the pressure side. The range of a segment Ss is determined in the direction of a chord by the end part on the suction side and an internal part filling chamber 48 is partitioned thereby. The filling chamber distributes a pressure refrigerant in the direction of an air foil length. The row 84 of a film cooling hole is extended through the segment Ss of the wall on the suction side and forms single passage through which a refrigerant is carried from the filling chamber to a working fluid flow passage. The rib end parts 52 and 56 on the suction side are positioned astride a minimum fluid pressure point on a surface 38 on the suction side and an active outflow of a refrigerant and film continuity in the direction of airfoil direction are achieved by a minimum pressure refrigerant, and the stress of the wall segment Ss is reduced.
    • 6. 发明专利
    • COOLABLE AIRFOIL
    • JPH11107702A
    • 1999-04-20
    • JP22391698
    • 1998-08-07
    • UNITED TECHNOLOGIES CORP
    • KRAUSE DAVID AMONGILLO DOMINIC J JRSOECHTING FRIEDRICH OZELESKY MARK F
    • F01D5/18
    • PROBLEM TO BE SOLVED: To provide a coolable airfoil or vane, which can operate at a high temperature for a long time but requires a minimal amount of coolant. SOLUTION: A blade or vane for a gas turbine engine includes a main cooling system 42 having a series of intermediate passages 44, 46a, 46b, 46c, and 48, and a subordinate cooling system 92 having a series of cooling ducts 94 (94a to 94h). The ducts of subordinate cooling system 92, being parallel to and having the same radial extent with the intermediate passages, are installed between the intermediate passages 44, etc., and outer surface 28 of the airfoil and within a surrounding wall 16. The ducts are installed within high temperature load regions 104 and 106 in the direction of a chord so as to maximize efficiency. The ducts are recommended to have the same extent in the direction of a chord in several intermediate passages in order to avoid an excessive rise in coolant temperature within the intermediate passages. The length of the duct in the direction of a chord is limited so as not to generate a temperature gradient, with could lead to failure, at airfoil wall 16.
    • 8. 发明申请
    • TIP LEAKAGE FLOW DIRECTIONALITY CONTROL
    • TIP泄漏流动方向控制
    • WO2015112273A2
    • 2015-07-30
    • PCT/US2014069424
    • 2014-12-10
    • UNITED TECHNOLOGIES CORP
    • ZELESKY MARK FAGGARWALA ANDREW S
    • F01D5/18
    • F01D5/20F05D2240/126F05D2260/205Y02T50/673Y02T50/676
    • An airfoil according to an exemplary aspect of the present disclosure includes, among other things, a suction sidewall and a pressure sidewall, each sidewall extending spanwise from an airfoil base and extending chordwise between a leading edge and a trailing edge. A tip wall extends chordwise from the leading edge to the trailing edge and joining respective outer spanwise ends of the suction and pressure sidewalls. A tip leakage control channel is recessed into the tip wall, the tip leakage control channel including a control channel floor that extends between a first control channel vane sidewall and a second control channel vane sidewall established by a corresponding tip leakage control vane. An internal cooling cavity is disposed between the suction sidewall and the pressure sidewall and a channel cooling aperture feeds airflow from the internal cooling cavity to the tip leakage control channel.
    • 除了别的之外,根据本公开的示例性方面的翼型包括吸入侧壁和压力侧壁,每个侧壁从翼型基部沿翼展方向延伸并且在前缘和后缘之间沿弦向延伸。 尖端壁从前缘向后缘弦向延伸并且连接吸入和压力侧壁的相应的外部翼展方向端部。 尖端泄漏控制通道凹入尖端壁中,尖端泄漏控制通道包括在第一控制通道叶片侧壁与由相应尖端泄漏控制叶片建立的第二控制通道叶片侧壁之间延伸的控制通道底板。 内部冷却腔设置在吸入侧壁和压力侧壁之间,并且通道冷却孔将来自内部冷却腔的气流供给到尖端泄漏控制通道。