专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明专利

JPH04350378A SCROLL COMPRESSOR 失效
公开(公告)号：JPH04350378A
公开(公告)日：1992-12-04
申请号：JP12091191
申请日：1991-05-27
申请人： HITACHI LTD
发明人： KAWAMINAMI SHIGEYA , IKEDA KAZUO , INABA KOICHI , IWAKURA AKITA , ABE NOBUO
IPC分类号： F04C18/02
摘要： PURPOSE:To improve the durability of a scroll lap while maintaining compressibility by providing an inclined part at the root part of a spiral lap part erected from an end plate in a fixed and a turning scrolls, and forming this root part into trapezoidal cross-sectional shape. CONSTITUTION:In a spiral scroll lap part 8, the outer peripheral face 8a and the inner face 8b are respectively formed into involute curves, and the tip part of the inner face 8b is formed into an circular arc 8c. The root part of such a scroll lap part 8 is formed into trapezoidal shape, and the lower bottom 9a positioned on the upper face of an end plate part 10 is made longer than the trapezoidal shape upper bottom 9b to be actual lap thickness. A joint angle 9d between the lap part 8 and the end plate part 10 is set to be an obtuse angle, and the height 9c of the trapezoidal shape is to be more than 1m, so that a shape change point around the lap root part, where stress is concentrated, is shifted upward to moderate the concentration of generated stress.

92. 发明专利

JPH04166688A FULLY HERMETIC TYPE MOTOR DRIVEN COMPRESSOR 失效
公开(公告)号：JPH04166688A
公开(公告)日：1992-06-12
申请号：JP29079590
申请日：1990-10-30
申请人： HITACHI LTD
发明人： ABE NOBUO , TAKADA HIDENARI , YAMANAKA TOSHIO , HORIE TATSUO , INABA KOICHI
IPC分类号： F04C29/00 , F04C18/02
摘要： PURPOSE:To cope with problems on manufacturing cost and the reliability of an assembly structure by setting the outer diameter of a support leg outer circumferential section in an auxiliary support body within the range of a dimension which is larger than the inner diameter of a case, but is smaller than the outer diameter of the case when the case is hermetically closed, and thereby welding the support outer circumferential section with the case. CONSTITUTION:In a second compressor, both an electric motor section 9 and a scroll compressor section driven by a rotating shaft 4 are housed in a hermetic container 14, and the rotating shaft 4 is concurrently supported by both a main bearing 3 which is formed in the frame 2 of the compressor section and an auxiliary bearing 12 formed in an auxiliary bearing support shaft 13 located at the opposite side of the electric motor with respect to the main bearing 3. In this case, the outer diameter of a support leg outer circumferential section which is turned to be the flat flange section of an auxiliary bearing support leg 13 shall be appropriately set within the range of a dimension which is larger than the inner diameter of a case 14a, but is smaller than the outer diameter of the case. And the support leg outer circumferential section is made to abut against the case end face 14d of the case 14a in the horizontal surface, and the abutting section is heated by a welding torch so as to be fused while welding beads are formed wherein the auxiliary bearing support shaft 13 is thereby welded together with the case 14a.

93. 发明专利

JPH04128584A SCROLL MEMBER FOR SCROLL COMPRESSOR AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH04128584A
公开(公告)日：1992-04-30
申请号：JP24708590
申请日：1990-09-19
申请人： HITACHI LTD
发明人： NAKAMURA KEIICHI , UEDA MASANOBU , ABE NOBUO
IPC分类号： F04C18/02
摘要： PURPOSE:To improve durability by molding a scroll member with aluminum alloy powder containing silicone while the density and strength near the boundary between a spiral lap section and an end plate section are reinforced in particular. CONSTITUTION:In a rotary scroll constituted of a disk-shaped end plate 1, a spiral lap section 2 and a bearing section, large stress concentration is repeatedly generated at a boundary section 4 between the lap section 2 and the end plate 1. The rotary scroll is molded with aluminum alloy powder containing silicone l5% or above and some alloy elements while the boundary section 4 is reinforced in particular. A silicone-containing aluminum alloy is quickly cooled and coagulated into powder, it is press-molded into a preform shape A, it is degassed and sintered, and it is extracted from a furnace and forged. Pads generated during forging are released to lap tip sections 5. An inexpensive scroll member with high strength at the boundary section 4 between the lap section 2 and the end plate section 1 is obtained.

94. 发明专利

JPH0368832B2 失效
公开(公告)号：JPH0368832B2
公开(公告)日：1991-10-29
申请号：JP10165383
申请日：1983-06-09
申请人： HITACHI LTD
发明人： HORI YASURO , ABE NOBUO
IPC分类号： B41J2/36 , B41J2/355 , B41J2/37 , H04N1/23 , H04N1/40 , H04N1/405

95. 发明专利

JPH0280175A MANUFACTURE OF BALL JOINT DEVICE 失效
公开(公告)号：JPH0280175A
公开(公告)日：1990-03-20
申请号：JP22993188
申请日：1988-09-16
申请人： HITACHI LTD
发明人： ABE NOBUO , OKADA KIYOSHI , HORIE TATSUO , ISHIYAMA AKIHIKO
IPC分类号： F16C11/06 , B23K11/02 , F16C7/02
摘要： PURPOSE:To obtain great joining strength and to improve reliability on strength and sliding performance by forming flat part for joining to the other end of a ball joint and outer circumferential surface of a ring-like sliding part and joining with resistance welding. CONSTITUTION:A connecting rod 13a and a spherical body 13b of the ball joint is integratedly formed with plastic working of cold forging, etc., from the one raw material. The flat part 13e facing to the flat end of the end face 13c of the connecting rod is formed in a part of the outer diameter of the ring 13d. At the time of executing the electric resistance welding to the connecting rod 13a and the ring 13d through both flat parts, as the pressurized force of the electric resistant welding is uniformly loaded to the joining surface, weldability is improved and good welding condition at the joining part can be obtd.

96. 发明专利

JPH01141274A BALL JOINT COMPRESSOR 失效
公开(公告)号：JPH01141274A
公开(公告)日：1989-06-02
申请号：JP29750387
申请日：1987-11-27
申请人： HITACHI LTD
发明人： ABE NOBUO , HORIE TATSUO
IPC分类号： F16J1/22 , F02F3/00
摘要： PURPOSE:To improve convenience and machining accuracy by providing a recessed spherical face on the rear of the top face of a piston made through steel board plastic machining, then containing the ball of a rod therein and stopping the supporting section of a spring for pushing the ball in a groove made in the inner face of the piston. CONSTITUTION:A main part, i.e. a piston 1, is formed not through cold forging but through restriction. A part of a ball 2a is contained in a recessed spherical face 1b of the piston 1 formed with high accuracy while a part of the ball 2a at the opposite side is contacting with a spring 3. Since the maximum diameter section of the ball 2a rises over an oil supply groove and exposed within a range where oil is dispersed from a common end section of an eccentric section 6a, sufficient amount of oil can be fed directly or indirectly to respective sliding sections thus improving sliding characteristic considerably. Furthermore, reliability against variation of sliding characteristic can be improved. Consequently, a ball joint piston device which repeats compression and suction slidably can be provided with low cost and high performance.

97. 发明专利

JPH0127278B2 失效
公开(公告)号：JPH0127278B2
公开(公告)日：1989-05-29
申请号：JP14831780
申请日：1980-10-24
申请人： HITACHI LTD
发明人： ABE NOBUO
IPC分类号： F04C23/02 , F04C23/00 , F04C29/00

98. 发明专利

JPS6469862A MANUFACTURE OF BALL JOINT TYPE PISTON 失效
公开(公告)号：JPS6469862A
公开(公告)日：1989-03-15
申请号：JP22632687
申请日：1987-09-11
申请人： HITACHI LTD
发明人： ABE NOBUO , HORIE TATSUO
IPC分类号： F04B39/00 , B22F5/00 , F16J1/22
摘要： PURPOSE:To improve the yield of a raw material, by a method wherein a piston body is integrally molded by a sintered alloy, after sintering, steam treatment is applied on the whole the piston body or the top and the spherical bearing part of the piston body, and the slide part of the piston body is finished by a grinding work. CONSTITUTION:In a piston body 7, a top part 7a, a slide part 6, and a spherical bearing part 5 are integrally formed by a sintered alloy, and the fastening side 14 of the spherical bearing part 5 is opened. Thereafter, an oxide film is formed on the whole of a piston or a top part 7a and a spherical bearing part 5 of the piston body 7 by steam treatment, and holes peculiar to a sintered alloy are sealed to improve resistance to wear. Through removal of an oxide film by applying a grinding work on an outer peripheral surface forming the slide part 6 of the piston, a size can be stabilized and the holes peculiar to the sintered alloy can be actualized to penetrate lubricating oil. Thereafter, a rod 4 having a tall body part 2 is inserted in the spherical bearing part 5 for fastening to rotatably and rockably couple them together to produce a ball joint type piston.

99. 发明专利

JPS6435091A VANE 失效
公开(公告)号：JPS6435091A
公开(公告)日：1989-02-06
申请号：JP22963687
申请日：1987-09-16
申请人： HITACHI METALS LTD , HITACHI LTD
发明人： GONDAI KOUICHI , NAKAMURA HIDEKI , KATO TERUO , IIZUKA TADASHI , ISHIHARA SHIN , HATAKE HIROAKI , ABE NOBUO
IPC分类号： F04C2/34 , F01C21/08 , F04C2/344 , F04C2/356 , F04C18/344 , F04C18/356
摘要： PURPOSE:To intend to lighten a vane by manufacturing the vane through injection molding of wateratomized material powder having high speed tool steel for providing hollow portions connected to nonsliding surface. CONSTITUTION:Compound is made wateratomized material powder having high speed tool steel composition and a vane is formed through injection molding of the same. Hollow portions 11 are formed in a vane 1, and this formed body is heat-treated after heating and sintering in a vacuum. Therefore, abrasion loss of the vane can be reduced as compared with a solid vane and lightening can be achieved remarkably as compared with a customary method.

100. 发明专利

JPS6415487A ROTARY TYPE COMPRESSOR 失效
公开(公告)号：JPS6415487A
公开(公告)日：1989-01-19
申请号：JP12175888
申请日：1988-05-20
申请人： HITACHI LTD
发明人： IKEDA KAZUO , UNEYAMA YOSHIHISA , SEKIGAMI KAZUO , ABE NOBUO , MURATA MITSURU
IPC分类号： F04C29/12 , F04C23/00 , F04C29/00
摘要： PURPOSE:To promote the miniaturization of a compressor by supporting a rotor, to which a roller of a pump part is fixed, to a bearing and forming in its flange partly a large thickness part making it face to the ravine of an end coil in an electric motor and a gas suction passage in the large thickness part. CONSTITUTION:A compressor respectively houses an electric motor 2 in the upper part and a pump part 3, driven by this electric motor 2, in the bottom part, in an enclosed vessel 1. The pump part 3 is constituted providing a roller 7 slidably fitted to an eccentric part 6b in a rotary shaft 6 forced to be press inserted to a rotor 2b of the electric motor 2 and a cylindrical cylinder 11 housing this roller 7. Here the compressor forms an upper part bearing 17, which rotatably supports the rotary shaft 6, by providing a flange 17b of arbitrary width in a shape cutting three parts with a journal part 17a serving as the center. Locally forming a large thickness part 17d, opposed to the ravine of an end coil 2c, in the radial direction from the outer contour side of the flange 17b, a gas suction passage 17e is formed in a part of this large thickness part 17b.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式