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71. 发明专利

JP2000508271A 失效
公开(公告)号：JP2000508271A
公开(公告)日：2000-07-04
申请号：JP53664297
申请日：1997-04-10
IPC分类号： B63H1/26 , B64C11/18

72. 发明专利

JPH06305492A ROTOR BLADE 失效
公开(公告)号：JPH06305492A
公开(公告)日：1994-11-01
申请号：JP4267594
申请日：1994-03-14
申请人： UESUTORANDO HERIKOPUTAAZU LTD
发明人： FUREDERITSUKU JIYON PERII , ARAN BUROTSUKURUHAASUTO
IPC分类号： B64C27/46 , B64C3/14 , B64C11/18 , B64C27/467 , B64C27/473
摘要： PURPOSE: To achieve an expanded operating range, and to improve thrust characteristics of a rotary blade, which operates at a high angle of attack and low Mach number, and blade profile performance at mid Mach number. CONSTITUTION: A rotary blade has a fixed boundary layer control device extending in the longitudinal direction of a lower surface adjacent to a trailing edge 12 to improve the lift/thrust characteristics of the blade especially at positive angles of attack. It was discovered that expected detrimental effects at zero/negative angles of attack did not materialize and the reasons are identified. Such a rotary blade is especially available for a helicopter main rotor and anti-torque rotor. A boundary layer flow deflection device 15 extends in the longitudinal direction of the trailing edge a blade profile or of the blade profile-shaped lower surface in the vicinity of the trailing edge.

73. 发明专利

JPH06264701A FLUID MACHINE 失效
公开(公告)号：JPH06264701A
公开(公告)日：1994-09-20
申请号：JP27911093
申请日：1993-10-12
申请人： FUJII YUSAKU
发明人： FUJII YUSAKU
IPC分类号： B63H3/00 , B64C11/06 , B64C11/18 , F01D1/04 , F01D7/00 , F03B3/14 , F03D1/06 , F04D29/30
摘要： PURPOSE:To provide a fluid machine of a simplified constitution having a high efficiency under wide conditions. CONSTITUTION:By structuring a fluid machine to be supported by a bearing 3 freely permitting rotation in the direction of changing the angle of incidence and provided with an aerofoil 14 having a shape to stabilize at the suitable angle of incidence against a flow of fluid, the aerofoil can automatically hold the suitable angle of incidence at all times corresponding to the change of relative fluid speed against the aerofoil consequented to the change of the working conditions and makes it possible to provide a fluid machine of a simplified constitution capable of maintaining a high efficiency under wide conditions.

74. 发明专利

JPH05124589A BLADE OF HELICOPTER 失效
公开(公告)号：JPH05124589A
公开(公告)日：1993-05-21
申请号：JP28861291
申请日：1991-11-05
申请人： MITSUBISHI HEAVY IND LTD
发明人： ISHII SHINYA
IPC分类号： B64C11/18 , B64C27/46 , B64C27/467
摘要： PURPOSE:To prevent reduction in the pressure of a rear end part of a blade vane end, and to prevent generation of a vane thickness noise component of the wind-cutting sound of the blade by providing a tubular hole penetrating the blade in the spanning direction, and by opening the end part of the hole at a specified position on the blade vane surface. CONSTITUTION:A tubular hole 6 penetrating a blade 1 is provided on the blade 1 of a helicopter in the spanning direction, and one end part of the hole 6 is opened on the vane surface of the upper surface of the blade 1 in the vicinity of a part where the blade is mounted, and an air intake port 4 is thus formed, while the other end of the hole 6 is opened on the vane surface of the upper surface of the blade 1 of a rear end part 3 of the blade vane end part, and an air ejection nozzle 5 is thus formed. The air taken in from the air intake port 4 is continuously blown out of the air ejection nozzle 5 at the time of the rotation of the blade 1, so as to prevent reduction in the pressure of the rear end part of the vane end part of the blade 1, and the generation of a vane thickness noise component of the wind-cutting sound of the blade 1 is thus suppressed.

75. 实用新型

JPH0524500U 失效
公开(公告)号：JPH0524500U
公开(公告)日：1993-03-30
申请号：JP9687991
申请日：1991-09-14
IPC分类号： B60V1/14 , B64C11/18 , F04D29/28 , F04D29/32

76. 发明专利

JPH0427080B2 失效
公开(公告)号：JPH0427080B2
公开(公告)日：1992-05-08
申请号：JP18695484
申请日：1984-09-06
申请人： KAGAKU GIJUTSUCHO KOKU UCHU GIJUTSU KENKYUSHOCHO
发明人： FUJII SHOICHI , NISHIWAKI HIDEO , TAKEDA KATSUMI
IPC分类号： B63H1/26 , B63H1/28 , B64C11/18

77. 发明专利

JPH0369760B2 失效
公开(公告)号：JPH0369760B2
公开(公告)日：1991-11-05
申请号：JP50170280
申请日：1980-07-15
申请人： YUNAITETSUDO TEKUNOROJIIZU CORP
发明人： HANSON DONARUDO BAANETSUTO , METSUGAA FUREDERITSUKU BURUUSU
IPC分类号： B64C11/00 , B64C11/16 , B64C11/18

78. 发明专利

JPH03197299A PROPELLER BLADE AND ASSEMBLY OF VANE 失效
公开(公告)号：JPH03197299A
公开(公告)日：1991-08-28
申请号：JP2363390
申请日：1990-02-01
申请人： UNITED TECHNOLOGIES CORP
发明人： HARII ESU WAINAUSUKII , KIYARORU EMU BUAKUZUII
IPC分类号： B64C11/18
摘要： PURPOSE: To provide a high load and high efficiency in a relatively high Mach number by forming a blade having a pair of aerofoil cross sections to have a specific thickness ratio and camber relating to plural cross-sections in its longitudinal direction. CONSTITUTION: This aerofoil blade 100 is identified by a code comprising two numbers with respective cross sections equal to 1000 times of thickness ratio (thickness/length), for example, the uppermost end aerofoil part 20 is characterized by 0.02 of thickness ratio, and the second aerofoil part 30 has 0.030 of thickness ratio. The third, fourth, and fifth aerofoil parts 40, 60, 75 have 0.040, 0.060, and 0.075 of thickness ratios respectively. A cross section of the aerofoil part 20 is cut off substantially at the tip of the blade, and a cross section of the aerofoil part 30 is cut off in a position of about 0.75 of length in a longitudinal axis of the blade from a root part of the blade. Cross sections of the aerofoil parts 40, 75 are cut off in positions of about 0.045 and 0.35 in their lengths.

79. 发明专利

JPH0211493A WING TYPE BLADE 失效
公开(公告)号：JPH0211493A
公开(公告)日：1990-01-16
申请号：JP4013489
申请日：1989-02-20
申请人： UNITED TECHNOLOGIES CORP
发明人： HARII SUTEFUAN WAINAUSUKII , KIYARORU MARIE BUAKUZUII
IPC分类号： B64C3/14 , B64C11/18 , B64C27/467
摘要： PURPOSE: To improve aerodynamic performance and to reduce damage by providing a camber having a specific front edge and a rear edge and providing a plural number of airfoiled cross sections to taper from an airfoiled cross section adjacent to a root part to an airfoiled cross section adjacent to a head end part under a specific condition. CONSTITUTION: A main part of an airfoiled blade 10 on a propeller of an airplane is formed of a head end part 15 and a root part 20. In this case, a camber having a radiant front edge each cross section of which has an obtuse angle roughly along overall length, the maximum blade thickness of which is within a range of roughly 38%-42% of chord length and having a top point of roughly 45% of the chord length and a rear edge to be comparatively an obtuse angle are provided on the airfoiled blade 10. Thereafter, an airfoiled cross section having a thickness ratio of 20% adjacent to the root part 20 to an airfoiled cross section having a thickness ratio of 2% adjacent to the head end part 15 are tapered, and at the time of tapering these cross section parts, a plural number of airfoiled cross sections 23-206 to move a position of the airfoiled cross section maximum blade thickness roughly from 38% to 42% are provided.

80. 发明专利

JPH0156960B2 失效
公开(公告)号：JPH0156960B2
公开(公告)日：1989-12-01
申请号：JP14800381
申请日：1981-09-21
申请人： AEROSUPASHIARU SOC NASHONARU IND , OFUISU NASHONARU DECHUUDO E DO RUSHERUSHU AEROSUPESHIARU
发明人： JANNJATSUKU CHIBEERU , ANNUUMARII RODO , JANNMARUKU EMIIRU BUURADEIE
IPC分类号： B64C3/14 , B64C11/18 , B64C27/46 , B64C27/467

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