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1. 发明专利

JP2007085356A Air conditioner 有权
标题翻译：冷气机
公开(公告)号：JP2007085356A
公开(公告)日：2007-04-05
申请号：JP2006339384
申请日：2006-12-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKADA YOSHIHIRO , NAKAMURA HIROO , MATSUO KAZUYA , FUNAKOSHI SAHO , KANEKO TOMOMICHI , YOKOYAMA HIDENORI , KOSOTO SOICHI , MORIMOTO MOTOO , YASUNAGA YASUHISA , IMOTO TSUTOMU , KAWABE SHUNICHI
IPC分类号： F04D17/04 , F24F1/00 , F24F13/20
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner that suppresses generation of abnormal sounds, while increasing the air volume of a cross flow fan for an indoor unit of the air conditioner. SOLUTION: Suppressing the generation of abnormal sounds can be achieved by changing chord lengths of blades 6 arranged between disks 7 of an impeller 10 of the cross flow fan. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种抑制异常声音的产生的空调，同时增加空调的室内单元的横流风扇的风量。解决方案：通过改变布置在横流风扇的叶轮10的盘7之间的叶片6的弦长可以实现抑制异常声音的产生。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2006090163A Multistage centrifugal fluid machine 审中-公开
标题翻译：多级离心流化床
公开(公告)号：JP2006090163A
公开(公告)日：2006-04-06
申请号：JP2004274327
申请日：2004-09-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUNABASHI SHIGEHISA , HONDA TAKESHI , TAKADA YOSHIHIRO , ISOJIMA NORIYUKI , NAKANO YASUYUKI , SUGANAMI MASAYUKI , WATANABE KENJI
IPC分类号： F04D29/44 , F04D25/08
摘要： PROBLEM TO BE SOLVED: To provide a multistage centrifugal fluid machine with a plurality of impellers connected to the same rotary shaft improved in efficiency by improving its return part.
SOLUTION: The multistage centrifugal fluid machine with the plurality of impellers connected to the same rotary shaft is provided with a spiral plate on an axially downstream side of at least one stage impeller among them so that its radial position gradually decreases, a flow passage for fluid flowing out of the impeller in a centrifugal direction is gradually extended in its flow passage area toward a downstream side and runs toward a center of the rotary shaft and a terminal end of the flow passage reaches an intake opening for the impeller at the next stage.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种多级离心流体机械，其具有连接到同一旋转轴的多个叶轮，通过改进其返回部分来提高效率。解决方案：具有连接到相同旋转轴的多个叶轮的多级离心流体机械在其中的至少一级叶轮的轴向下游侧上设置有螺旋板，使得其径向位置逐渐减小，流动在离心方向流出叶轮的流体的通道在其流动通道区域中朝向下游侧逐渐延伸并且朝向旋转轴的中心延伸，并且流动通道的终端到达叶轮的进气口下个阶段。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2004239606A Air conditioner 有权
公开(公告)号：JP2004239606A
公开(公告)日：2004-08-26
申请号：JP2004110618
申请日：2004-04-05
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAMURA HIROO , TAKAKU SHOJI , FUNAKOSHI SAHO , KUDO MITSUO , TAKADA YOSHIHIRO , MORIMOTO MOTOO , YOKOYAMA HIDENORI , KOGURE HIROSHI
IPC分类号： F24F13/30 , F25B29/00
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner capable of preventing room temperature from lowering at the time of dehumidifying operation and lowering sound of refrigerant flow, in the air conditioner capable of performing dehumidifying operation while heating. SOLUTION: A first heat exchanger with refrigerant flow passages of two or more systems which work as a heater at the time of dehumidifying operation, a second heat exchanger with refrigerant flow passages of two or more systems which work as a cooler at the time of dehumidifying operation, a throttling means, used as a throttling at the time of dehumidifying operation at a connection pipe of the first heat exchanger and the second heat exchanger, and an indoor unit with an indoor fan 9 arranged at downstream of air flow direction of the first heat exchanger and the second heat exchanger are provided in the air conditioner. The refrigerant flows from the first heat exchanger to the second heat exchanger at the time of cooling operation and the dehumidifying operation and the refrigerant flows from the second heat exchanger to the first heat exchanger at the time of heating operation. This air conditioner has an auxiliary heat exchanger 26 connected to upstream of the first heat exchanger in the refrigerant flow passage at the time of dehumidifying operation and provided at upstream of air flow of the first heat exchanger or the second heat exchanger and having smaller air flow resistance than the first heat exchanger and the second heat exchanger with a lineage of refrigerant flow passage. COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2002195689A AIR CONDITIONER 审中-公开
公开(公告)号：JP2002195689A
公开(公告)日：2002-07-10
申请号：JP2001345509
申请日：2001-11-12
申请人： HITACHI LTD
发明人： NAKAMURA HIROO , TAKAKU SHOJI , FUNAKOSHI SAHO , KUDO MITSUO , TAKADA YOSHIHIRO , MORIMOTO MOTOO , YOKOYAMA HIDENORI , KOGURE HIROSHI
IPC分类号： F28F1/32 , F25B29/00
摘要： PROBLEM TO BE SOLVED: To prevent blow-off temperature upon dehumidification from lowering, while improving air cooling and heating conditioning capability. SOLUTION: In an air conditioner which includes a first heat exchanger that acts as a heater upon dehumidification operation, a second heat exchanger that acts as a condenser upon dehumidification operation, and drawing means used as a drawing upon dehumidification operation on a connection piping between the first heat exchanger and the second heat exchanger, there is provided an auxiliary heat exchanger, connected on the upstream side of the first heat exchanger in a refrigerant flow passage upon the dehumidifying operation, the fin pitch of which is larger than that of the first or second heat exchanger.

5. 发明专利

JP2002156135A ROOM AIR CONDITIONER 审中-公开
公开(公告)号：JP2002156135A
公开(公告)日：2002-05-31
申请号：JP2001316176
申请日：2001-10-15
申请人： HITACHI LTD
发明人： TAKADA YOSHIHIRO , FUNABASHI SHIGEHISA , ITO MASAAKI , KOGURE HIROSHI
IPC分类号： F24F13/20 , F24F13/30 , F24F1/00
摘要： PROBLEM TO BE SOLVED: To provide a room air conditioner wherein a heat exchanger installed in limited unit dimensions is provided with an increased front mounting area. SOLUTION: The air conditioner comprises the heat exchanger, a fan provided downstream of the heat exchanger, and a diffusing casing for guiding air passing through the heat exchanger to the fan, all of which are built in. An electric component box is provided in a space upstream of the heat exchanger and upstream of the fan.

6. 发明专利

JP2002089493A CENTRIFUGAL IMPELLER APPLIED DEVICE 失效
公开(公告)号：JP2002089493A
公开(公告)日：2002-03-27
申请号：JP2000272569
申请日：2000-09-08
申请人： HITACHI LTD
发明人： ONO KEIICHI , YOKOYAMA MAKOTO , TAKADA YOSHIHIRO
IPC分类号： F04D29/44 , F04D29/66 , F04D29/70
摘要： PROBLEM TO BE SOLVED: To lower noises and increase processing efficiency for a centrifugal impeller applied device. SOLUTION: In the centrifugal impeller applied device to blow air by using a centrifugal impeller, a scroll-shaped part is mounted on an outer circumferential part of the centrifugal impeller such that a level of a tip of the impeller in a rotation direction heightens gradually.

7. 发明专利

JP2002061867A AIR CONDITIONER 失效
公开(公告)号：JP2002061867A
公开(公告)日：2002-02-28
申请号：JP2000255729
申请日：2000-08-22
申请人： HITACHI LTD
发明人： HAKAMAYA NOBUSUKE , TAKADA YOSHIHIRO , OTA KAZUTOSHI , MIYAZAKI NORIO
IPC分类号： F24F1/00
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner which suppresses noise, without dropping the quantity of wind, in an indoor blast mechanism. SOLUTION: In an air conditioner which is equipped with a once-through fan 2 whose outside diameter changes as the blast fan of an indoor unit, a straightening vane 8 is attached to the intersecting point between a nose 10 opposed to the maximum position of the outside diameter of the vane and an upper casing 19.

8. 发明专利

JP2001271790A CENTRIFUGAL IMPELLER AND AIR CLEANER 失效
公开(公告)号：JP2001271790A
公开(公告)日：2001-10-05
申请号：JP2000090681
申请日：2000-03-27
申请人： HITACHI LTD
发明人： YOKOYAMA MAKOTO , TAKADA YOSHIHIRO
IPC分类号： F04D29/28 , F04D29/30 , F04D29/44
摘要： PROBLEM TO BE SOLVED: To provide a centrifugal impeller capable of preventing decrease in impeller efficiency and increase in noise even when a treating capacity is increased. SOLUTION: Them outlet angle of an impeller is inclined from about 40 degrees to about 60 degrees in the rotating direction of the impeller in the position about 1/2 to about 1/3 of the impeller length from the outlet side of the impeller.

9. 发明专利

JP2001173595A CENTRIFUGAL IMPELELR 失效
公开(公告)号：JP2001173595A
公开(公告)日：2001-06-26
申请号：JP35549099
申请日：1999-12-15
申请人： HITACHI LTD
发明人： HONDA TAKESHI , TAKADA YOSHIHIRO , ISHIKAWA TOMINORI
IPC分类号： F04D29/28
摘要： PROBLEM TO BE SOLVED: To provide a centrifugal impeller which can be stably used in a wide range by preventing separation in flow between blades. SOLUTION: When a cylindrical cross section having the same center shaft as the impeller is spread flatly, a side plate has a constant thickness in a part to support the blade circumferentially arranged without depending on the radius of a cylinder, and is downwardly projected and thickened between the adjacent blades.

10. 发明专利

JP2000130799A OUTDOOR UNIT OF AIR CONDITIONER 失效
公开(公告)号：JP2000130799A
公开(公告)日：2000-05-12
申请号：JP30409798
申请日：1998-10-26
申请人： HITACHI LTD
发明人： HAKAMAYA NOBUSUKE , TAKADA YOSHIHIRO , TAKAKU SHOJI , YOKOYAMA HIDENORI , MORIMOTO MOTOO , FUNAKOSHI SAHO , OTSUKA ATSUSHI
IPC分类号： F24F5/00
摘要： PROBLEM TO BE SOLVED: To economize electric power by raising capacity and efficiency of a propeller fan large, and to lessen noises. SOLUTION: An outdoor unit 1 of an air conditioner is equipped with a propeller fan 5, static pressure recovering vanes 7 for converting the dynamic pressure energy of an air flow into static pressure energy and recovering it, a safety protective grille 9 for preventing intrusion of the hand, a foreign substance or the like from outside and a frame body of the outdoor unit for holding and fitting these devices. In this unit, the safety protective grille 9 is disposed on the downstream side of the static pressure recovering vanes 7 positioned on the downstream side of the rear edge of the propeller fan 5.

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