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1. 发明专利

JPS6237318A SCROLL MEMBER AND HEAT TREATMENT THEREOF 失效
公开(公告)号：JPS6237318A
公开(公告)日：1987-02-18
申请号：JP17319585
申请日：1985-08-08
申请人： HITACHI LTD
发明人： IKEDA MITSUO , AIBA KAZUMI , MINAGAWA SADATOSHI , MASUDA TOMIO
IPC分类号： C21D9/00 , F04C18/02
摘要： PURPOSE:To remarkably improve the workability of a scroll member made of an iron alloy by softening entirely or locally the spiral and flat parts by annealing, decarburization or other method. CONSTITUTION:A scroll member 1 made of an iron alloy is attached to a chuck 6 on a turntable 5. A preheating coil 7 is moved forward with a driving device 8 and while being rotated with the turntable 5, the member 1 is preheated with an induced current from a power source 9. When the whole member 1 reaches the preheating temp., a driving device 11 and the turntable 5 are moved in synchronism with each other, and while a heating coil 10 is being moved along the spiral part, a high frequency induced current is supplied from a power source 12 to heat the surfaces 2 of the lapped side walls and the surface 3 of the flat plate.

2. 发明专利

JPS6415190A INJECTION WASHER FOR SCROLL COMPRESSOR PART 失效
公开(公告)号：JPS6415190A
公开(公告)日：1989-01-19
申请号：JP17098187
申请日：1987-07-10
申请人： HITACHI LTD
发明人： MASUDA TOMIO , SUGIYAMA HAJIME
IPC分类号： B08B3/02 , F04C29/00
摘要： PURPOSE: To make uniform and sufficiently clean the sliding faces of a rotary scroll and a stationary scroll by providing a rotating mechanism for the receiving base of an object to be cleaned and a moving mechanism for moving an ejecting nozzle in a fixed direction in synchronism with this rotating mechanism. CONSTITUTION: The object 2 to be cleaned is set on the receiving base 3 of the object to be cleaned in a cleaning chamber 1, and a door 12 for the cleaning chamber is closed. Next, the receiving base 3 is moved upward to a fixed position by the operation of a cylinder 8 for upwardly and downwardly moving the receiving base, and simultaneously, a valve 13 for sucking a cleaning liq. is opened to eject the cleaning liq. from a nozzle 5 toward the object 2 to be cleaned via a piping 11 and a nozzle shaft 4. Next, the receiving base 3 is rotated with an operating motor 7, the nozzle 5 is moved in the X-axis direction from the center of the object 2 to be cleaned toward the outer periphery by the operation of the cylinder 8 in synchronism with this rotation and the ejected liq. is directly ejected over the entire sliding faces of the rotary scroll and the stationary scroll, which are objects 2 to be cleaned, to uniformly clean these sliding faces.

3. 发明专利

JPS6357726A INDUCTION HARDENING METHOD AND SPRAY QUENCHING METHOD FOR SCROLL SHAFT FOR SCROLL COMPRESSOR 失效
公开(公告)号：JPS6357726A
公开(公告)日：1988-03-12
申请号：JP19883986
申请日：1986-08-27
申请人： HITACHI LTD
发明人： MASUDA TOMIO , SUGIYAMA HAJIME , MOCHIZUKI TERUHIKO
IPC分类号： C21D1/10 , C21D1/667 , C21D9/28
摘要： PURPOSE:To carry out hardening in a single induction hardening stage, to reduce the cost of hardening and to save energy by heating plural parts of a shaft ranging from the pin to the journal with a prescribed high frequency heating coil and by quenching them by rapid cooling. CONSTITUTION:A shaft 1 contributing toward the rotary motion of a scroll compressor is composed of a pin 1a, a balance weight 1b, a journal 1c and a rotor 1d in a connected state. The pin 1a is present at one end of the shaft 1 and is made eccentric by a certain extent. The pin 1a, the balance weight 1b and the journal 1c are heated with a prescribed high frequency heating coil 3 and quenched with a spray quenching jacket 8 placed around the coil 3. Thus, the surfaces of the plural parts requiring surface hardening are hardened in a single induction hardening stage.

4. 发明专利

JPS6287269A HIGH-PRESSURE INJECTING AND CLEANING DEVICE 失效
公开(公告)号：JPS6287269A
公开(公告)日：1987-04-21
申请号：JP22672485
申请日：1985-10-14
申请人： HITACHI LTD
发明人： MASUDA TOMIO , AIBA KAZUMI
IPC分类号： B05B9/00
摘要： PURPOSE:To make a cleaning chamber in common use as a drying chamber small in size and compact and to lessen the space for the titled device by forming the device into double-nozzle construction in which a hole for cleaning to inject liquid and a hole to inject a gas for drying are combined and united to one body. CONSTITUTION:A high-pressure liquid passage hole 17 is obliquely bored to a nozzle base 16 mounted with a nozzle cap and a high-pressure liquid piping 10 is communicated with the hole 17. A gas passage hole 18 is bored to the nozzle base 16 and a gas piping 15 for drying gas is communicated with the hole 18. The high-pressure liquid is first injected under a high pressure from a nozzle cap 21 for the high-pressure liquid of an integral composite nozzle 6 to a material to be cleaned to clean said material, then a selector valve is operated to blow the drying gas from a drying gas source from a nozzle cap 23 of the nozzle 6. The cleaning and drying are thus executed with one nozzle within the same chamber.

5. 发明专利

JPS6078175A FOUR-WAY SELECTOR VALVE 失效
公开(公告)号：JPS6078175A
公开(公告)日：1985-05-02
申请号：JP18300483
申请日：1983-10-03
申请人： HITACHI LTD
发明人： SUGIYAMA AKIRA , KITAZAWA HIROSHI , SUGIYAMA HAJIME , MASUDA TOMIO
IPC分类号： F16K11/07 , F16K11/065
摘要： PURPOSE:To reduce the cost of materials and the number of machining stages as well as to aim at improvements in the capacity of airtightness, by making up a slide valve with a thined-form plastic so as to cause it to stick fast to a body inner wall by dint of pressure force inside a body. CONSTITUTION:A slide valve 3 is to be made into a plastic molding being thinned on the whole circumferential surface with a thickness reduced part 3a installed in a pressure applied surface. With adoption of the slide valve 3 light this, differential pressure force inside a body 1, especially between a high pressure fluid passage 2a and low pressure fluid passage 3b is applied to the slide valve 3 so that the valve 3 is able to keep airtightness as being deformed so as to stick fast to a body inner wall. In addition, since tolerance in machining accuracies between an inner wall of the body 1 and a sliding surface of the slide valve 3 can be made larger, the number of machining stages is reducible.

6. 发明专利

JPS52129648A MEANS FOR WELDING NONNCIRCULAR WORKS 失效
公开(公告)号：JPS52129648A
公开(公告)日：1977-10-31
申请号：JP4549576
申请日：1976-04-23
申请人： HITACHI LTD
发明人： MIYAKE HEIWA , FUKATSU KIYOSHI , TANIGAWA MINORU , MASUDA TOMIO , AIBA KAZUMI
IPC分类号： B23K15/00 , B23K9/00 , B23K9/127 , B23K37/00

7. 发明专利

JPH02204693A LOCKING METHOD OF FIXED SCROLL FOR SCROLL COMPRESSOR 失效
公开(公告)号：JPH02204693A
公开(公告)日：1990-08-14
申请号：JP2470889
申请日：1989-02-02
申请人： HITACHI LTD
发明人： MISU YUZO , MASUDA TOMIO , SUGIYAMA HAJIME
IPC分类号： F04C18/02
摘要： PURPOSE:To make a welding lockup performable at low cost by welding a fixed scroll and a frame together for fixation by means of irradiation of local energy when they are fixed after positioning both fixed and turning scrolls. CONSTITUTION:A fixed scroll 19 is fitted in a female recess of a frame 18 and, after a turning scroll 15 and this fixed scroll 19 are precisely positioned in use of a small clearance 31 between both 18 and 19, pressurizing this fixed scroll from the upside so as to cause it to be moved to the frame 18. Then, local high heating energy such as an electron beam or laser beam or the like is irradiated crosswise from an outer circumferential part of the frame 18, whereby an end plate of the fixed scroll and a member of the frame 18 are locally melted and welded (30) together in a local manner. At this time, there is provided with a recess 32 to make this beam irradiation easy, and in order to check thermal distortion to the utmost, the local high heating enery such as the electron beam or the like is used in addition.

8. 发明专利

JPS5735199A Fan impeller 失效
标题翻译：风扇叶轮
公开(公告)号：JPS5735199A
公开(公告)日：1982-02-25
申请号：JP11023480
申请日：1980-08-13
申请人： Hitachi Ltd
发明人： OOISHI YASUROU , TANIGAWA MINORU , TAKAMATSU ATSUYOSHI , TAKAHASHI MINEO , MASUDA TOMIO , KURODA SHIGEAKI
IPC分类号： F04D29/28
摘要： PURPOSE: To improve the tightness between a side disk and blades by coupling the projections of hollow blades, formed to a specified shape by providing the blade tip with an appropriate amount of twist, after inserting the projections into the fitting holes of the side disk and a core disk respectively, as well as by draw-forming the side disk.
CONSTITUTION: Blades 7 are formed to a three-dimensional shape having a thickness by twist-forming the blade tip and the projections 7a prepared on the both ends of the blades 7 are inserted into the fitting holes 7b of a core disk 5 and a side disk 6 respectively and are fixed together by bending. Furthermore, the side disk 6 and the blades 7 are fixed tightly by draw-forming, while being pressed, along the curve of the portion A of the blade 7 to the arrow direction. Thus, the performance characteristics of a fan can be maintained and noise can be reduced by removing the clearances between each end of two blade plates, forming the hollow blade, and the side disk 6 for keeping tight fixing.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过将突起插入侧盘的装配孔中，通过将中空叶片的突出物联接成特定的形状，通过提供适当的捻度来提供叶片尖端来提高侧盘和叶片之间的紧密度，分别是芯盘，以及通过拉制形成侧盘。构成：叶片7通过扭转形成叶片尖端而形成为具有厚度的三维形状，并且在叶片7的两端准备的突起7a插入到芯盘5和侧面的装配孔7b中分别通过弯曲固定在一起。此外，侧板6和叶片7在沿着叶片7的部分A的曲线向箭头方向被挤压的同时通过拉伸成形紧固。因此，通过去除形成中空叶片的两个叶片的两端之间的间隙和用于保持紧密固定的侧盘6，可以保持风扇的性能特性并降低噪音。

9. 发明专利

JPS62277101A DISTILLATION REGENERATOR 失效
公开(公告)号：JPS62277101A
公开(公告)日：1987-12-02
申请号：JP11732486
申请日：1986-05-23
申请人： HITACHI LTD
发明人： MASUDA TOMIO , AIBA KAZUMI , ABE ISAO
IPC分类号： B01D3/00
摘要： PURPOSE:To permit the easy removal of the impurities stuck to perforated heating plates for evaporating a soln. contg. the impurities such as dust by providing scrapers for removing the impurities to an apparatus including the heating plates and dropping the impurities from holes. CONSTITUTION:Plural stages of the perforated heating plates 2e are provided in a vessel and the rotary scrapers 2d are provided in contact with the heating plates 2e. A piping 7 for supplying the soln. contg. the impurities is provided in contact with the heating plate 2e of the uppermost stage and a basket 2h for recovering the impurities is provided at the bottom of the vessel. The impurities separated from the liquid on the heating plates 2e of the upper stages are carried to the holes 2g provided on the heating plates 2e by the scrapers 2d and are dropped from the holes down to the heating plates 2e of the lower stages. Plural stages of such heating plates 2e are spirally formed so that the impurities are successively dropped downward until the impurities are finally recovered in the basket 2h.

10. 发明专利

JPS58174101A SCROLL FLUID MACHINERY 失效
公开(公告)号：JPS58174101A
公开(公告)日：1983-10-13
申请号：JP5658882
申请日：1982-04-07
申请人： HITACHI LTD
发明人： MIZUNO TAKAO , UCHIKAWA NAOSHI , MURAYAMA AKIRA , TAMURA TAKAHIRO , MASUDA TOMIO
IPC分类号： F04C18/02 , F01C1/02 , F01C17/06
摘要： PURPOSE:To prevent the scratching and seizure phenomenon on the slidable part of an Oldham mechanism for preventing the revolution of a swirling scroll by applying the surface treatment onto said slidable part. CONSTITUTION:As for an Oldham ring 4, each surface of the keys 5b symmetrically fixed onto the end plate of a swirling scroll 2 and the keys 5a fixed on a frame is applied with the lubrite treatment or the sulfur-soaking nitrification treatment. Thus, even if the local increase of the surface pressure due to uneven contact is generated, scratching and seizure of the Oldham mechanism can be prevented.

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