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1. 发明专利

JP2004239493A Heat pump cycle 审中-公开
公开(公告)号：JP2004239493A
公开(公告)日：2004-08-26
申请号：JP2003028243
申请日：2003-02-05
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： SAKAI TAKESHI , KAWAMURA SUSUMU , OZAKI YUKIKATSU
IPC分类号： F25B1/00 , F25B5/04
CPC分类号： F25B5/04 , F25B2341/0012 , F25B2500/01
摘要： PROBLEM TO BE SOLVED: To provide a heat pump cycle for stabilizing desired heat absorbing capability for a long period.
SOLUTION: An evaporator 40 is arranged between an ejector 30 and a gas-liquid separator 50. Thus, refrigerant discharged from a compressor 10 is circulated in the evaporator 40, and so the amount of the refrigerant discharged from the compressor 10 is secured even when the pumping capability of the ejector 30 is greatly changed with an individual difference (manufacturing dispersion) or a secular change of the ejector 30. The great change in the amount of the refrigerant to be circulated in the evaporator 40 is suppressed to stabilize the desired heat absorbing capability for a long period. The flow rate of the refrigerant in the evaporator 40 is increased to increase heat transmissivity between the refrigerant and the evaporator 40. The heat exchanging capability, namely, the heat absorbing capability of the evaporator 40 is improved without increasing the size of the evaporator 40, resulting in the improved operating efficiency of the heat pump cycle.
COPYRIGHT: (C)2004,JPO&NCIPI

2. 发明专利

JP2003021084A Scroll type compressor 审中-公开
标题翻译：滚动式压缩机
公开(公告)号：JP2003021084A
公开(公告)日：2003-01-24
申请号：JP2001202519
申请日：2001-07-03
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： UCHIDA KAZUHIDE , INAGAKI MITSUO , KIMURA SEISHU , SAKAI TAKESHI
IPC分类号： F04C18/02
摘要： PROBLEM TO BE SOLVED: To reduce mechanical loss by reducing load of a seal material in a thrust support back pressure chamber, even when a scroll type compressor is operated at an extremely high operating pressure.
SOLUTION: A middle housing 13 is disposed at the back of a turning scroll 6 and supports thrust load by a compression reaction force, but the back pressure chamber 19 is formed in one of the back surface of an end plate part 6a of the turning scroll and a surface of the middle housing 13 facing to it, and pressure of compressed fluid is introduced to generate a force by the back pressure to cancel the thrust load. However, the back pressure must be also increased when the operating pressure is high, so that load of the seal material increases to increase abrasion and the mechanical loss. A plurality of coil springs 12 are provided as an additional energizing means and their ends are mounted to the turning scroll 6 side and the middle housing 13 side, thereby generating an axial force/without causing the friction. A magnet may the used.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：即使当涡旋式压缩机在非常高的工作压力下操作时，通过减小推力支撑背压室中的密封材料的负载来减少机械损失。解决方案：中间壳体13设置在转动涡卷6的后部，并通过压缩反作用力支撑推力载荷，但背压室19形成在转动涡旋件的端板部分6a的后表面之一中并且中间壳体13的面向其的表面，并且压缩流体的压力被引入以通过背压产生力以消除推力负载。然而，当操作压力高时，背压也必须增加，使得密封材料的载荷增加以增加磨损和机械损失。多个螺旋弹簧12被设置为附加的激励装置，并且它们的端部安装到转动涡卷6侧和中间壳体13侧，从而产生轴向力而不引起摩擦。可以使用磁铁。

3. 发明专利

JP2002227780A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JP2002227780A
公开(公告)日：2002-08-14
申请号：JP2001028467
申请日：2001-02-05
申请人： NIPPON SOKEN , DENSO CORP
发明人： KIMURA SEISHU , INAGAKI MITSUO , UCHIDA KAZUHIDE , SAKAI TAKESHI , KATO HIROYASU
IPC分类号： F04C29/00 , F01C17/06 , F04C18/02
摘要： PROBLEM TO BE SOLVED: To provide a scroll type compressor equipped with a thrust supporting mechanism capable of enhancing reliability, cutting down the number of components and reducing a cost while suppressing increase of the size of a compressor. SOLUTION: The thrust supporting mechanism of this scroll type compressor contains an Oldam's ring 150 and plural rollers 151, 152 formed into cylindrical shapes. These rollers comprises ones rotatable in a X direction and the others rotatable in a Y direction, and are rotatably supported by roller grooves 114, 107 formed in a turning scroll 110 and a front housing 100. The Oldam's ring moves along the boss part of the turning scroll, and prevents the rotation of the turning scroll. The contact part on the front housing side of the Oldam's ring is engaged with the groove part 106 of the front housing in order to prevent the Oldam's ring from rotating.

4. 发明专利

JP2002174189A SCROLL COMPRESSOR 失效
公开(公告)号：JP2002174189A
公开(公告)日：2002-06-21
申请号：JP2001166913
申请日：2001-06-01
申请人： DENSO CORP , NIPPON SOKEN
发明人： NAKAJIMA MASAFUMI , SAKAI TAKESHI , KAMIYA HARUO , TAKASAKI TOSHINOBU , NAKAZAWA KENJI , KATO HIROYASU , AKIYAMA KUNITAKA , UCHIDA KAZUHIDE
IPC分类号： F04C18/02
摘要： PROBLEM TO BE SOLVED: To supply a sliding part of a driven crank mechanism with a sufficient quantity of lubricating oil. SOLUTION: An oil passage 117 for leading the lubricating oil existing in a crankcase 118 where the driven crank mechanism C is disposed, to the sliding part in the driven crank mechanism C is composed of a first oil passage 117a formed between the external wall of a crankshaft 106 and the internal wall of an insertion hole 107a; a second oil passage 117b communicating the shaft 103 side of the first oil passage 117a with the crankcase 118 side; and a third oil passage 117c communicating the turning scroll 105 side of the first oil passage 117c with the crankcase 118 side. Since the oil passage 117 is not formed in dead end structure blocked on one end side but in open circuit structure of communicating both end sides of the oil passage 117 with the crankcase 118, the lubricating oil can easily flow through the oil passage 117. The sliding part of the driven crank mechanism C can thereby be supplied with a sufficient quantity of lubricating oil.

5. 发明专利

JP2001207979A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JP2001207979A
公开(公告)日：2001-08-03
申请号：JP2000021847
申请日：2000-01-26
申请人： DENSO CORP , NIPPON SOKEN
发明人： UCHIDA KAZUHIDE , NAKAJIMA MASAFUMI , SAKAI TAKESHI , KATO HIROYASU , TAKASAKI TOSHINOBU , SUMI TAKASHI
IPC分类号： F04C18/02 , F25B1/00 , F25B1/04 , F25B9/00
摘要： PROBLEM TO BE SOLVED: To increase contact pressure of a tip seal groove and a tip seal. SOLUTION: Radius of curvature r1-r3 of tip seals 112a, 113a before mounted to tip seal grooves 112b, 113b is made larger than the radius of curvature R1-R3 of the tip seal grooves 112b, 113b. When the tip seals 112a, 113a are mounted to the tip seal grooves 112b, 113b, it is necessary to reduce the radius of curvature r1-r3 of the tip seals 112a, 113a to be small (by elastic deformation). Since the contact pressure of outside walls 112c, 113c of both tip seal grooves 112b, 113b and the tip seals 112a, 113a can be increased by restoring force (elastic force) to make the tip seals 112a, 113a return to original radius of curvature r1-r3, sealing performance (gas tightness) of a working chamber V can be sufficiently ensured.

6. 发明专利

JP2000145642A PISTON PUMP 失效
公开(公告)号：JP2000145642A
公开(公告)日：2000-05-26
申请号：JP31501098
申请日：1998-11-05
申请人： DENSO CORP , NIPPON SOKEN
发明人： NAKAJIMA MASAFUMI , KATO HIROYASU , SAKAI TAKESHI , UCHIDA KAZUHIDE , ONIMARU SADAHISA , KIMURA SEISHU
IPC分类号： F04B39/10 , F04B1/14 , F04B27/08
摘要： PROBLEM TO BE SOLVED: To prevent breakage of a suction valve in a piston type compressor for super critical refrigeration cycle while securing a sufficient effective sectional area (intake port area) even when a bore diameter is decreased. SOLUTION: A suction port 135 is opened to an inner peripheral side surface 123a of a first cylinder bore 123, while a suction valve 136 is arcuately arranged along a circumference direction of the inner peripheral side surface 123a. Irrespective of a bore diameter of the first cylinder bore 123, an opening area of the suction port 135 is enlarged and lead length of the suction valve 136 can be enlarged. Even when the diameter of the first cylinder bore 123 is decreased, a sufficient effective sectional area (intake port area) can be secured at the suction port 135. It is also possible to prevent breakage of the suction valve 136.

7. 发明专利

JPH11311193A MOTOR-DRIVEN COMPRESSOR 失效
公开(公告)号：JPH11311193A
公开(公告)日：1999-11-09
申请号：JP14991198
申请日：1998-05-29
申请人： DENSO CORP , NIPPON SOKEN
发明人： NAKAJIMA MASAFUMI , KATO HIROYASU , SAKAI TAKESHI , SANUKI MASAMI , IRIYAMA KENJI , TSUMAGARI YUICHI , UCHIDA KAZUHIDE
IPC分类号： F04C29/00 , H02K7/14
摘要： PROBLEM TO BE SOLVED: To make compact the axial size of motor-driven compressor. SOLUTION: A crank part 125a and both bearings 126, 127 are positioned in a coil end part, and a thrust bearing face 112a and a pin 137a (self rotation prevention mechanism 137) is positioned outside of a stator 123. Accordingly, damage of the face 112a and the pin 137a is prevented and it is possible to shorten the axial size of the motor-driven compressor 100.

8. 发明专利

JPH11241691A SCROLL TYPE ELECTRIC COMPRESSOR FOR CO2 失效
公开(公告)号：JPH11241691A
公开(公告)日：1999-09-07
申请号：JP4353898
申请日：1998-02-25
申请人： DENSO CORP , NIPPON SOKEN
发明人： NAKAJIMA MASAFUMI , KATO HIROYASU , SAKAI TAKESHI , UCHIDA KAZUHIDE
IPC分类号： F01C1/02 , F04C18/02
摘要： PROBLEM TO BE SOLVED: To prevent a shaft line of a revolving scroll from inclining and to miniaturize the whole of a scroll type electric compressor for CO2 . SOLUTION: A back pressure chamber 7a is formed at the rear of a tip plate part 9d of a revolving scroll 9, discharge pressure is introduced into the chamber 7a and the revolving scroll 9 is pressed toward a fixed scroll 11. By providing the back pressure chamber 7a, space for providing a rotation prevention/thrust supporting mechanism is eliminated, a thrust receiving surface 9b is formed in a flange part 9a that the tip plate part 9d of the revolving scroll 9 is radially extended and this thrust receiving surface 9b is brought into sliding contact with a thrust receiving surface 11b of the fixed scroll 11. Also a whirl-stop pin 10 is provided between the pair of the thrust receiving surfaces 9b, 11b. When a difference in level part 9s is provided between the tip plate part 9d and the flange part 9a, the length of the shaft direction of the whole of a compressor can be shortened because the tip plate part 9d can be inserted into space within a tip part 19a of a coil 19 of a motor 2.

9. 发明专利

JPH11241682A COMPRESSOR FOR CO2 失效
公开(公告)号：JPH11241682A
公开(公告)日：1999-09-07
申请号：JP4238698
申请日：1998-02-24
申请人： DENSO CORP , NIPPON SOKEN
发明人： KATO HIROYASU , NAKAJIMA MASAFUMI , SAKAI TAKESHI , UCHIDA KAZUHIDE
IPC分类号： F04B27/10 , F04B37/18 , F04B39/02 , F04C18/02 , F04C23/00 , F04C29/00 , F04C29/02 , F25B9/00 , F25B31/00
摘要： PROBLEM TO BE SOLVED: To perform a stable oil feeding by preventing an oil feeding passage of lubricating oil of a compressor for CO2 from being clogged by foreign matter and to reduce manufacturing cost of the oil feeding passage. SOLUTION: Because differential pressure of discharge pressure and inlet pressure becomes large in a refrigerant compressor of an air conditioner using CO2 refrigerant, a restriction as a pressure reducing parts limiting flow rate becomes thin in diameter when a lubricating oil supply is performed by utilizing differential pressure and the restriction becomes easy to be closed by foreign matter. Therefore, an intermittent oil feeding mechanism is formed in an oil feeding passage without using pressure reducing parts, substantial oil feeding time is shortened and oil feeding amount is controlled. The intermittent oil feeding mechanism in the case of a scroll compressor can be constituted of a tip plate part 9d of a revolving scroll 9 and a discharge port 20a of the oil feeding passage 20 formed on an end face 7e of a housing 7. As a result, because the discharge port 20a is opened and closed by revolution of the tip plate part 9d, substantial oil feeding time becomes short and the restriction is not required to be provided on the oil feeding passage 20.

10. 发明专利

JPH1193876A COMPOSITE COMPRESSION EQUIPMENT 失效
公开(公告)号：JPH1193876A
公开(公告)日：1999-04-06
申请号：JP904398
申请日：1998-01-20
申请人： DENSO CORP , NIPPON SOKEN
发明人： NAKAJIMA MASAFUMI , KATO HIROYASU , OGAWA HIROSHI , SAKAI TAKESHI
IPC分类号： F04C23/02 , F04B35/00 , F16H1/28
摘要： PROBLEM TO BE SOLVED: To harmonize respective characteristics of respective driving sources and a compression mechanism with each other by constituting a speed change mechanism to transmit driving force to the compression mechanism by changing a speed, in either one of first and second driving parts in a housing. SOLUTION: A crank part 102a is formed on one end side of a driving shaft 102 of compression equipment, and a movable scroll 112 is connected. A pulley 103 to rotate by an engine of an external driving source is arranged outside a housing 101 on the other end side of the shaft 102, and an electromagnetic clutch 120 is arranged on its inside diameter side. An electric motor 130 of an induction electric motor type is constituted between the pulley 103 and a compression mechanism 110, and driving force of a rotor 132 is transmitted to the shaft 102 through a one-way clutch 150 after reducing a speed by a speed change mechanism 140 composed of a planetary gear mechanism. With such constitution, delivery capacity Vc is increased without enlarging the electric motor 130, and the compression mechanism 110 can be operated in a rotating speed (n) reduced condition.

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