专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH11336674A DISPLACEMENT FLUID MACHINE 失效
公开(公告)号：JPH11336674A
公开(公告)日：1999-12-07
申请号：JP14690398
申请日：1998-05-28
申请人： HITACHI LTD
发明人： KOYAMA MASAKI , NAKAJIMA SHOICHI , INOUE YOICHI , MIZUMOTO MUNEO , KOSOKABE HIROKATSU , TAKEBAYASHI MASAHIRO , TAGAWA SHIGETARO
IPC分类号： F04C29/00 , F04C18/02
摘要： PROBLEM TO BE SOLVED: To reduce rotational moment acting upon a displacer so as to reduce friction and wear by forming a cylinder and the displacer of iron-based sintered material, and forming a mill scale on a surface and a hole wall surface in a displacement fluid machine provided with the displacer. SOLUTION: The inner peripheral shape of a cylinder 4 of a displacement compression element of a closed compressor is so formed that the same shape appears every 120 deg. in a hollow part, and three vanes 4b are provided at the end of each hollow part. A displacer 5 is disposed inside the cylinder 4. In this case, the cylinder 4 and the displacer 5 are formed of iron sintered material, and a mill scale is formed on a surface and a hole wall surface. The iron-based sintered material is porous, and a large number of holes exist on the surface and inside, but an oxide layer is formed on the surface and the hole wall surface by steam treatment. Even the holes inside the material are thus treated to improve wear resistance inside the material.

2. 发明专利

JPH1162857A SCROLL COMPRESSOR 失效
公开(公告)号：JPH1162857A
公开(公告)日：1999-03-05
申请号：JP21291497
申请日：1997-08-07
申请人： HITACHI LTD
发明人： NATORI TATSUO , MIZUMOTO MUNEO , SHIIKI KAZUAKI , OOTAKE IKUMORI
IPC分类号： F04C18/02
摘要： PROBLEM TO BE SOLVED: To maintain sealing performance and surely perform sealing also when chip seal surrounding pressure is small by providing a pressure chamber at the boundary part of the upper member and the lower member of a chip seal and introducing high pressure side pressure at a spiral direction location provided with each pressure chamber into the pressure chamber. SOLUTION: A chip seal 100 is arranged within a seal groove 4 of a U-shape in cross section which is formed at the tip part of a lap 9A of a revolving scroll 9 along a spiral direction and prevents gas leakage from a high pressure side to a low pressure side. The chip seal 100 is divided into a chip seal upper member 2 and a chip seal lower member 1 along the spiral direction of the lap 9A of the revolving scroll 9, and compression chambers 5, 5' introducing compression of compressed gas are provided between the members 1, 2. A pressure chamber 5a formed on the side wall of the upper member 2 plays roles of facilitating introduction of compressed air and strongly floating the member 2.

3. 发明专利

JPH09317668A SCROLL COMPRESSOR 失效
公开(公告)号：JPH09317668A
公开(公告)日：1997-12-09
申请号：JP13868596
申请日：1996-05-31
申请人： HITACHI LTD
发明人： MURAI YOICHI , MIZUMOTO MUNEO , SATO EIICHI , INOUE TOMOAKI , KOSOKABE HIROKATSU , TOJO KENJI
IPC分类号： F04C29/02 , F04C18/02
摘要： PROBLEM TO BE SOLVED: To prevent a lowering of bearing performance due to occurrence of shortage of oil by foaming of refrigerant gas dissolved in lubricating oil on various bearings used for a scroll compressor. SOLUTION: An oiling hole 9b is provided all through a crankshaft 9 on an axis of the crankshaft 9 supported by a main bearing 15 and to drive a revolving scroll 3 through a revolving bearing 10, an oiling conduit 9c to feed oil to the main bearing 15 by branching to the oiling hole 9b is provided, a restrictor 21b is provided on the upstream side of a branching point of the oiling conduit 9c and on the oiling hole 9b, a refrigerant gas column 21a an upstream end of which is positioned at a position on the downstream side of the restrictor 21b and on the upstream side of the branching point of the oiling conduit 9c is arranged on the central axis of the oiling hole 9b, and the refrigerant gas column 21a is constituted free to be rotated with the crankshaft 9. Thereafter, an opening is provided on an upstream end of the refrigerant gas column 21a and a downstream end opening of the refrigerant gas column 21a is provided in a space between a side end surface of the revolving scroll 3 of the crankshaft 9 and a surface of the side of the crankshaft 9 of the revolving scroll 3.

4. 发明专利

JPH09144680A ROTARY COMPRESSOR, AND REFRIGERATOR AND REFRIGERATING AIR-CONDITIONING USING THE SAME 失效
公开(公告)号：JPH09144680A
公开(公告)日：1997-06-03
申请号：JP30547795
申请日：1995-11-24
申请人： HITACHI LTD
发明人： MASUDA TOSHIO , MIZUMOTO MUNEO , SATO EIICHI , KOYAMA MASAKI , KOSOKABE HIROKATSU , HATAKE HIROAKI
IPC分类号： F04C29/02 , F04C18/356
摘要： PROBLEM TO BE SOLVED: To improve the lubricating condition of a roller and a vane sliding surface under alternate fluorocarbon environment regulating a rate for feeding lube oil toward the roller and the vane sliding surface so as to set an all oil rate to a specified rate while taking an oil leakage rate from a clearance between an end plate and both end surfaces of the roller, and an oil leakage rate from a clearance between the side surface of a vane and a cylinder, in consideration. SOLUTION: A rotary compressor is formed in an enclosed container in such a constitution that a roller 11 which is eccentrically rotated and a vane 12 for separating the inside of a cylinder 4 into an intake chamber and a compressor are arranged. HFC 134a is used in refrigerant gas, ester lubricating oil is used in lubricating oil, and the vane 12 is formed of aluminum impregnating carbon so as to use alternate fluorocarbon. In this case, total oil feeding rate of an oil leakage rate 14a from a clearance between the both end surface of the roller 11 and an end plate for closing the both end openings of the cylinder 4, an oil leakage rate from a clearance between the vane 12 side surface and the cylinder 4, and a rate for sucking oil from an intake port toward the cylinder 4, is set to 1 to 5ml per minute to supply lubricating oil toward the roller 11 and the wane 12 sliding surface.

5. 发明专利

JPH0998588A ULTRASONIC MOTOR, USING METHOD AND PRESERVING METHOD THEREFOR 失效
公开(公告)号：JPH0998588A
公开(公告)日：1997-04-08
申请号：JP27700995
申请日：1995-09-29
申请人： FUKOKU KK , HITACHI LTD
发明人： TAKAHATA DAISUKE , SUGINOYA HIDEKIYO , KURUSU HIROYUKI , MATSUI KAZUO , YAMADA SATORU , SUGIMOTO ARITOSHI , MIZUNO FUMIO , MIZUMOTO MUNEO
IPC分类号： H02N2/00
摘要： PROBLEM TO BE SOLVED: To obtain an ultrasonic motor which can be operated for a long time in dry atmosphere and vacuum while prolonging the service life by improving lubrication between the stator and a slider member. SOLUTION: A slider member 6 bonded to the stator 3 side of a rotor 4 is coated, on the surface thereof, with lubricant fine particles for improving lubrication between the stator 3 and a slider member 6 and a deep trench, made in the pectinate tooth 3a of stator 3, is filled with the lubricant fine particles in order to sustaining lubrication for a long term. A rotary encoder 20 for detecting the rotational speed of output shaft 5 is mounted on the output shaft 5 at the base end side thereof in order to sustain the rotational speed of output shaft 5. Furthermore, a temperature sensor 31 for detecting the temperature of stator 3 is provided in the trench at the fixed part of stator 3 in order to prevent temperature rise thereof.

6. 发明专利

JPH08121361A SCREW ROTOR AND SCREW TYPE COMPRESSOR AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH08121361A
公开(公告)日：1996-05-14
申请号：JP26653794
申请日：1994-10-31
申请人： HITACHI LTD , KAWAMURA KENKYUSHO KK
发明人： NATORI TATSUO , AOKI MASAKAZU , HANEDA MITSUAKI , MIZUMOTO MUNEO , KAWAMURA MASAO , AOKI IWAO
IPC分类号： F04C18/16 , F04C29/00
摘要： PURPOSE: To provide a gap between rotors matching with an actual condition under operation, to eliminate a fear of a rotor being brought into seizure by means of a minimum gap, and to increase performance of a compressor and to form a device in a maintenance free manner. CONSTITUTION: By applying high temperature heating treatment on a binder formed of polyamideimide resin and a solid lubricant wherein MoS2 , Sb2 O3 , and C are used as a pigment, a coating film having excellent wear resistance is produced. The surfaces of the male and female rotors 1 and 2 of a dry compressor are covered with a coating film 10 formed of the solid lubricant. Further, when one rotor is covered with the coating film 10 and a high hard layer is formed on the other, at a contact part between the two rotors, the coating film 10 is grinding-finished by the high hard layer.

7. 发明专利

JPH06201091A SEALED ACTUATOR 失效
公开(公告)号：JPH06201091A
公开(公告)日：1994-07-19
申请号：JP34794392
申请日：1992-12-28
申请人： HITACHI LTD
发明人： SATO SATOYUKI , MIZUMOTO MUNEO
IPC分类号： F16N17/06
摘要： PURPOSE:To obtain the same lubricating method as in the atmospheric air even in a vacuum in a space or vacuum actuator by modularizing mechanism elements requiring lubrication, and enclosing them in a sealed casing. CONSTITUTION:A modularized magnetic fluid seal 21, a speed reducer 19 and support bearings 25a, 25b are isolated from external vacuum environment A by the magnetic fluid seal 21 and O-rings 26a, 26b, 26c so as to maintain the interior B of an actuator to the pressure equivalent to the atmospheric pressure or the steam pressure of lubricant or higher. The same lubricating method as in the atmospheric air can be thereby applied in the actuator so as to extend load capacity and a service life.

8. 发明专利

JPH0469413B2 失效
公开(公告)号：JPH0469413B2
公开(公告)日：1992-11-06
申请号：JP20478683
申请日：1983-11-02
申请人： HITACHI LTD
发明人： MIZUMOTO MUNEO , OKUNO SUMIO , FUJIOKA KAZUMASA , TAKAHASHI KUNIHIRO , SATO KAZUO , YAMAGUCHI SUMIO , KURODA TAKARO , TAMURA NAOYUKI
IPC分类号： H01L21/677 , C30B23/08 , H01L21/203 , H01L21/67

9. 发明专利

JPH02176546A CHAMBER WITH POSITIONING MECHANISM AND ANALYZING DEVICE 失效
公开(公告)号：JPH02176546A
公开(公告)日：1990-07-09
申请号：JP32944088
申请日：1988-12-28
申请人： HITACHI LTD
发明人： TSUMAKI NOBUO , KOIKE TOSHIFUMI , MASUDA TOSHIO , MIZUMOTO MUNEO
IPC分类号： G01N23/00
摘要： PURPOSE:To efficiently utilize a wide wall surface of a chamber, namely, many surfaces for a multi-function processing by loading a movable table member on a rotation axis body formed in a semi-columnar shape, and holding the rotation axis body on an inner wall of the chamber. CONSTITUTION:The inside of a chamber 6 is allowed to form a vacuum by a vacuum exhaust system 8. A rotation axis 10 is rotated and positioned so that a sample 15 attached onto a Y table 12 is opposed to a processing port 7-1. Subsequently, by scanning X and Y tables 11, 12, a necessary processing is executed extending over a prescribed place or the whole of the surface of the sample 15. Next, the rotation axis 10 is rotated, and positioned so that the surface of the sample is opposed to a detecting port 7-2. In this state, by moving the X and Y tables 11, 12, a foreign matter, a defect and a flaw of the sample 15 are detected. By repeating the same procedure, many processings, detections and analyses can be executed in a short time in one chamber 6. Also, by leading in lean gas from a gas leading-in port 9, it is also possible to make various processing environments in the chamber 6.

10. 发明专利

JPH02173499A METHOD AND DEVICE FOR SUPPLYING LUBRICANT 失效
公开(公告)号：JPH02173499A
公开(公告)日：1990-07-04
申请号：JP32333188
申请日：1988-12-23
申请人： HITACHI LTD , KATO YASUSHI
发明人： MIZUMOTO MUNEO , KATO YASUSHI , TSUMAKI NOBUO , INOUE KO
IPC分类号： F16N25/00 , F16C33/66 , F16N17/06 , F16N29/02
摘要： PURPOSE:To stably operate a mechanical element inaccessible for a person by supplying lubricating oil to mechanical element parts in operation with a preset time interval or being based on a condition of the mechanical element parts detected by a sensor. CONSTITUTION:In accordance with a preset time interval or a condition of a mechanical element 1 detected by a sensor 5, a controller 4 actuates a power source 3 driving a tribocoating source 2 atomizing a lubricant toward the mechanical element 1 lubricated in its surface. Thus supplying and supplementing the lubricant to the mechanical element in operation as necessary, the mechanical element, used in a position where a person is unable to easily approach, can be stably operated over a long time.

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