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1. 发明专利

JPH05222901A STRUCTURE OF STATIONARY BLADE OF TURBINE 失效
公开(公告)号：JPH05222901A
公开(公告)日：1993-08-31
申请号：JP2353892
申请日：1992-02-10
申请人： HITACHI LTD
发明人： YASUGADAIRA NORIO , ARIMA YOSHIAKI , SATO TAKESHI
IPC分类号： F01D9/02
摘要： PURPOSE:To reduce secondary flow loss generated in a low aspect ratio stage by determining peripheral direction coordinates of a stationary blade trailing edge and blade length direction coordinates so that blade chord length relative to the blade length dirrection of a stationary blade may change in accordance with an elliptic curve having the blade length and chord length as parameter. CONSTITUTION:Tip part blades 21a, 21b... of plural stationary blades 20a, 20b... are connected to the inner wall 14 of the outer periphery diaphragm, bottom part blades 22a, 22b... are connected to the outer wall surface 15 of the inner periphery diaphragm, fixed and held. Blade forms of stationary blades 20a, 20b... are formed of a back face form 16a and a ventral form 16b, and a height (blade length) is decided with a flow passage width Hn. Blades 23a, 23b... of the central parts are such that a blade chord length Cp is larger than a blade chord length Ct in the tip part and the chord length Cr in the bottom part. The trailing edge line of the stationary blade is made into an elliptic curve adopting the blade length Hn as a long diameter and the chord length Cr of the center part of the blade as a short diameter. Accordingly, secondary flow loss in a low aspect ratio step is reduced, and stage performance of an axial flow turbine is improved.

2. 发明专利

JPH0370087B2 失效
公开(公告)号：JPH0370087B2
公开(公告)日：1991-11-06
申请号：JP28571085
申请日：1985-12-20
申请人： HITACHI LTD
发明人： SATO TAKESHI , ARIMA YOSHIAKI , FUJITA ISAO , TAKETOMO MASAKI
IPC分类号： F01D17/10 , F16K1/36 , F16K47/02

3. 发明专利

JPS5977005A Interstage structure of axial-flow turbine 失效
标题翻译：轴流式涡轮机的特征结构
公开(公告)号：JPS5977005A
公开(公告)日：1984-05-02
申请号：JP18687082
申请日：1982-10-26
申请人： Hitachi Ltd
发明人： SATOU TAKESHI , YASUGADAIRA NORIO , SASADA TETSUO , ARIMA YOSHIAKI
IPC分类号： F01D5/14 , F01D9/02
CPC分类号： F01D5/142
摘要： PURPOSE:To enhance the interstage efficiency of a turbine interstage structure having blade lattices of several stationary vanes and rotor blades, by setting the ratio of the chord length of the stationary vane and the axial space between the stationary vane latice and the rotor blade lattice, and the ratio of the number of the stationary vanes and that of the rotor vanes within specific ranges, respectively. CONSTITUTION:In an interstage structure of an axial-flow turbine in which rotor blades 2 are fixed to the outer periphery of a rotatable disc 3 downstream of stationary vanes 1 each secured at both ends thereof to inner and outer walls 4, 5, the ratio of CN and DELTAZ where CN is the chord length of the stationary vane and DELTAZ is the axial space between both blade latices of stationary vanes 1 and rotor blades 2, is set to in a specific range, that is, 0.25Z/CN
摘要翻译：目的：为了提高具有几个固定叶片和转子叶片叶片的涡轮机级间结构的级间效率，通过设定固定叶片的弦长与固定叶片叶片与转子叶片格架之间的轴向空间的比例，以及固定叶片数与转子叶片的数量在特定范围内的比例。构成：在轴流式涡轮机的级间结构中，其中转子叶片2固定在固定叶片1的下游的可旋转盘3的外周，每个固定叶片1的两端固定在内壁和外壁4,5上， CN和DELTAZ，其中CN是固定叶片的弦长，DELTAZ是固定叶片1和转子叶片2的两个叶片爪之间的轴向空间，设定在特定范围内，即0.25Z / CN <1.0 。此外，其中NS和NB分别是叶片1和叶片2的数量的NS和NB的比率被设置为凹凸，即0.5

4. 发明专利

JPS53138564A MULTITUBULAR TYPE EVAPORATOR OF AIR CONDITIONER 失效
公开(公告)号：JPS53138564A
公开(公告)日：1978-12-04
申请号：JP5347377
申请日：1977-05-10
申请人： HITACHI LTD
发明人： KAWASHIMA KENICHI , ARIMA YOSHIAKI , MIYAMOTO SEIGO , UENISHI AKIRA , SUGINUMA ATSUSHI , ENDOU YOSHIHIDE
IPC分类号： F25B39/02 , F25B41/06 , F28F27/02
摘要： PURPOSE:To improve air-conditioning efficiency, by disposing spiral passages to a short sections of inlet portions for refrigerant of evaporating tubes to provide with necessary flow path resistance, and by discharging and vaporizing refrigerant in the evaporating tubes, in a multitubular system evaporator, such as, a car cooler, etc.

5. 发明专利

JPS5145850A 失效
公开(公告)号：JPS5145850A
公开(公告)日：1976-04-19
申请号：JP11920874
申请日：1974-10-18
申请人： HITACHI LTD
发明人： KAWASHIMA KENICHI , MYAMOTO SEIGO , ARIMA YOSHIAKI , ENDO YOSHIHIDE
IPC分类号： F25D11/00 , B60H1/32 , F24F3/00 , F24F5/00 , F25B1/00 , F25B5/00 , F25B13/00 , F25B27/00

6. 发明专利

JPH0330688B2 失效
公开(公告)号：JPH0330688B2
公开(公告)日：1991-05-01
申请号：JP186684
申请日：1984-01-11
申请人： HITACHI LTD
发明人： SATO TAKESHI , UENISHI AKIRA , TSUBOCHI KUNYOSHI , ARIMA YOSHIAKI , TORITANI HAJIME
IPC分类号： F01D25/12 , F01D25/14

7. 发明专利

JPS60147507A STEAM TURBINE COOLING STRUCTURE 失效
公开(公告)号：JPS60147507A
公开(公告)日：1985-08-03
申请号：JP186684
申请日：1984-01-11
申请人： HITACHI LTD
发明人： SATOU TAKESHI , UENISHI AKIRA , TSUBOUCHI KUNIYOSHI , ARIMA YOSHIAKI , TORITANI HAJIME
IPC分类号： F01D25/12 , F01D25/14
摘要： PURPOSE:To enhance the efficiency of cooling for steam turbines by providing a specific guide vane in the neighborhood of the steam outlet side of an inner casing for a system in which an exhaust path is provided between an inner casing housed with a rotor and an outer casing surrounding the inner casing. CONSTITUTION:In a superhigh-pressure and high-temperature turbine, when steam 2 coming from a steam inlet tube 1 passes through plural turbine end portions consisting of mobile blades 12 and stational blades 24, the mobile blades 12, or a rotary shaft 4 is turned. The steam 2 then goes in the form of an exhaust flow 8 into an annular space 6 and sent through between inner and outer casings 3 and 5 from the exhaust tube 7 to the next steam turbine. In this case, plural guide vanes 10 to be inclined radially to the axis of the rotary shaft 4 by as much as angle B to the radial line OP are provided on the inner surface of the outer casing 5 near the steam outlet of the inner casing 3. A buffle plate 11 is provided over the steam outlet side of the inner casing 3 and the steam inlet tube 1 in the annular space 6.

8. 发明专利

JPS5951104A Internal structure of turbine stage 失效
标题翻译：涡轮机内部结构
公开(公告)号：JPS5951104A
公开(公告)日：1984-03-24
申请号：JP16085182
申请日：1982-09-17
申请人： Hitachi Ltd
发明人： YASUGADAIRA NORIO , SATOU TAKESHI , ARIMA YOSHIAKI
IPC分类号： F01D9/02 , F01D11/02 , F01D11/08
CPC分类号： F01D9/023
摘要： PURPOSE:To reduce the secondary stream loss by forming the bypass slot of an operating fluid on a diaphragm and providing its inlet port on the rear edge side of a stationary blade and its outlet port downstream the inlet port. CONSTITUTION:An opening section 25 is provided on the upper wall face of a lower diaphragm 2' at the outlet section of a stationary blade 1, and a bypass slot 15 introducing part of an operating fluid to an exhaust nozzle 19 is formed on a lower diaphragm 2'. In addition, an opening section is provided on the lower wall face of an upper diaphragm 2 at the outlet section of the stationary blade 1, and a bypass slot 14 spraying the operating fluid between seal fins 7, 7' is formed on the upper diaphragm 2. The secondary stream near diaphragm sidewalls is sucked and bypassed by the bypass slots 14, 15, thus the secondary stream loss can be reduced.
摘要翻译：目的：通过在隔膜上形成工作流体的旁路槽并在静止叶片的后边缘侧提供其入口端口以及其入口端口下游的出口端口来减少二次流损失。构成：在静止叶片1的出口部分的下隔膜2'的上壁面上设置有开口部25，在下部形成有将工作流体的一部分引入排气喷嘴19的旁通槽15 隔膜2'。此外，在固定叶片1的出口部分的上隔膜2的下壁面设置有开口部，在上隔膜形成有在密封翅片7,7'之间喷射工作流体的旁通槽14 靠近隔膜侧壁的二次流由旁路槽14,15吸引和旁路，从而可以减少二次流损失。

9. 发明专利

JPS572403A TURBINE MOVING BLADE 失效
公开(公告)号：JPS572403A
公开(公告)日：1982-01-07
申请号：JP7562480
申请日：1980-06-06
申请人： HITACHI LTD
发明人： SATOU TAKESHI , ARIMA YOSHIAKI , YASUGADAIRA NORIO
IPC分类号： F01D5/12
摘要： PURPOSE:To reduce a secondary flow loss by forming the surface of a base of each rotary blade in a curved surface following the shape of passage between blades as well as inserting a partition, with a curved surface of the same shape as that of said surface, between facing surfaces of adjacent bases. CONSTITUTION:The surface of a base 17 of each rotary blade is formed in a curved surface along a curved passage between blades. A partition 18 has a curved surface of the same shape as the base 17 of the rotary blade and its blade spanwise length is longer than that of said base 17. Rotary blades and partitions 18 are alternately fitted in treelike convex grooves 19a made along the outer circumference of a wheel disc 19 in such a manner as to stick fast to each other. Instead of the partitions 18, projecting plates may be provided blade spanwise from the bottom of the passage. Through these arrangements, any flow around side walls of rotary blades approaches a laminar flow to reduce a harmful secondary flow.

10. 发明专利

JPS55107871A VEHICLEEBORNE REFRIGERATOR 失效
公开(公告)号：JPS55107871A
公开(公告)日：1980-08-19
申请号：JP1394079
申请日：1979-02-08
申请人： HITACHI LTD
发明人： ARIMA YOSHIAKI , ENDOU YOSHIHIDE , HORIBE KIYOSHI
IPC分类号： F25D19/02 , B60N3/10 , F25D15/00

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