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1. 发明专利

JPH09105389A SCROLL COMPRESSOR 失效
公开(公告)号：JPH09105389A
公开(公告)日：1997-04-22
申请号：JP26321795
申请日：1995-10-11
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： YOSHIDA TETSUO , MORI TATSUSHI , BAN TAKASHI
IPC分类号： F04C18/02
摘要： PROBLEM TO BE SOLVED: To make simple enough the structure of a discharge port and its driving structure and to rotate movable scroll member stably around the shaft center of a fixed scroll member. SOLUTION: Both first and second insertional holes 16 and 17 are formed in a movable scroll member 14 as extending in the axial direction so as to be situated bias to the opposite side each other from the center of a scroll part 14a. An eccentric driving shaft 18 to rotate the movable scroll member 14 are supported on two housings 11 and 12 to be rotatably by a bearing 19 at both ends in a state of being inserted into the first insertional hole 16 of the movable scroll member 14, while an eccentric driven shaft 21 to prevent any rotation of the movable scroll member 14 is supported by a bearing 22 at both the ends to be rotatable separately from the eccentric driving shaft 18 in a state of inserted into the second insertional hole 17 of the movable scroll member 14.

2. 发明专利

JPH03194188A SCROLL TYPE COMPRESSOR WITH VARIABLE CAPACITY 失效
公开(公告)号：JPH03194188A
公开(公告)日：1991-08-23
申请号：JP33168289
申请日：1989-12-21
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： SUZUKI SHINICHI , IZUMI YUJI , YOSHIDA TETSUO , FUKANUMA TETSUHIKO , MORI TATSUSHI
IPC分类号： F04C28/26 , F04C18/02 , F04C28/16
摘要： PURPOSE:To provide possibility of changing the capacity of a compressor multi- steppedly while the compressor is held in operation as it is, by incorporating such a construction that release of the compressed fluid to the suction side is made one after another by from a bypass, which introduces a lower pressure compressed fluid to a bypass leading a higher pressure compressed fluid. CONSTITUTION:Two lines of bypasses 51, 52 are provided, which penetrate a stationary side plate 11 at a stationary scroll 10 of a scroll type compressor concerned and opens to the mating compressing chamber 5. These bypasses are formed along the spiral of a stationary spiral body 12 one after another in the positions nearer the center from the periphery that a fluid led-in hole 72, and are put in communication with bypass chambers 81, 82 through respective check valves 511, 521. The bypass chambers 81, 82 have communication holes 811, 821 opened and closed by a bypass opening/closing mechanism 4, which is equipped with an opening/closing spool 42 to be moved against the action of a spring S1 by the internal pressure of a control chamber P1, and this pressure is controlled by a control valve 9 depending upon the suction pressure PS.

3. 发明专利

JPH0494483A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH0494483A
公开(公告)日：1992-03-26
申请号：JP20959790
申请日：1990-08-07
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： YOSHIDA TETSUO , FUKANUMA TETSUHIKO , IZUMI YUJI , MORI TATSUSHI
IPC分类号： F04C18/02 , F01C17/06
摘要： PURPOSE:To decrease a number of movable members and part items and to prevent a movable scroll from tilting by providing a means for guiding a housing side lace of a revolving on its axis-preventing mechanism to only a rotational axial line direction and a member for press-energizing the lace to a movable scroll side. CONSTITUTION:A revolving on its axis-preventing mechanism 16, which permits orbital motion rotation of a movable scroll 9 and prevents the movable scroll 9 from revolving on its axis, is interposed between the movable scroll 9 and a front housing 2. Here, a guide surface 2b, for guiding a guide ring 17a integrally formed with a housing side lace 17 of the revolving on its axis-preventing mechanism 16 in the axial line direction, is formed in the front housing 2. Further, an annular elastic unit 23, opposed to the guide ring 17a and formed of a leaf spring, is housed in an annular recessed groove 2c opposedly formed to the front housing 2 and the lace 17, revolving on its axis-preventing mechanism 17 and the movable scroll 9 or the like are energized to a side of a fixed scroll 6 by the elastic unit 23. In this way, reduction of a number of movable members and part items and prevention of tilting of the movable scroll 9 are contrived.

4. 发明专利

JPH03164589A SCROLL-TYPE COMPRESSOR 失效
公开(公告)号：JPH03164589A
公开(公告)日：1991-07-16
申请号：JP30131989
申请日：1989-11-20
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： FUKANUMA TETSUHIKO , IZUMI YUJI , BAN TAKASHI , MORI TATSUSHI
IPC分类号： F04C18/02
摘要： PURPOSE:To securely seal a compression chamber immediately before discharge as well as reduce wear and abrasion of both spiral bodies by permitting at least either a fixed spiral body or a movable spiral body to have a relatively loose slit between involute points on inner and outer walls. CONSTITUTION:Since inner walls 222, 322 of both spiral bodies 22, 32 are formed in a wall thickness thinner by a thickness of alpha with involute change points H, Q as a border to an outer peripheral ends 22b, 32b, both spiral bodies 22, 32 have a slit with a thickness of alpha between contact points X, Y or contact points X', Y' and the outer peripheral ends 22b, 32b. Thus even if a distance between contact points of both spiral bodies 22, 32 varies due to a processing error of both spiral bodies 22, 32, or even if thermal expansion distortion is concentrated on both spiral bodies 22, 32 in the vicinity of a discharge port 61 due to a rise in temperature during operation, fluid leakage due to such a processing error or the like of both spiral bodies 22, 32 is permitted to escape in a compression chamber which is not at a high pressure whereby the compression chamber immediately before discharge can be well sealed.

5. 发明专利

JPH1182338A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH1182338A
公开(公告)日：1999-03-26
申请号：JP24960397
申请日：1997-08-29
申请人： DENSO CORP , TOYODA AUTOMATIC LOOM WORKS
发明人： TAKEMOTO TAKESHI , AKIYAMA KUNITAKA , HISANAGA SHIGERU , HAYASHI HIROYUKI , WATANABE SHINICHI , WATANABE YASUSHI , MORI TATSUSHI , SHIMIZU IZURU , IGUCHI MASAO
IPC分类号： F04C29/02 , F04C18/02
摘要： PROBLEM TO BE SOLVED: To provide a scroll type compressor having high reliability while ensuring high lubrication of a bearing device or the like, and high refrigerating capacity. SOLUTION: In a housing comprising a shell 1, a front housing 2 and a back housing 4, an oil separating chamber 19 for separating a lubricating oil from a coolant gas after the compression, and an oil storing chamber 18 communicated with the oil separating chamber 19, and storing the lubricating oil, are mounted. The oil storing chamber 18 is communicated with a sliding part of a fixed spiral part 1b and a movable side plate 12C by an oil supply hole formed on a gasket 33, and an oil supply hole 1h formed on the shell 1. A filter 34 for capturing the foreign matters, is mounted between the oil storing chamber 18 and the oil supply holes formed on the gasket 33.

6. 发明专利

JPH04292593A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH04292593A
公开(公告)日：1992-10-16
申请号：JP5493891
申请日：1991-03-19
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： FUKANUMA TETSUHIKO , IZUMI YUJI , MORI TATSUSHI , YOSHIDA TETSUO
IPC分类号： F04C18/02
摘要： PURPOSE:To miniaturize the whole compressor, and, at the same time, realize weight reduction too, maintaining the strength of a starting end part from a viewpoint of durability. CONSTITUTION:In fixed and movable scrolls 2, 3, external wall curves SG1, MG1 consist of curves whose arcuation is reduced from an involute curve I1 in response to the increase of an involute angler theta, internal wall curves SG3, MG3 consist of curves based on these external wall curves SM1, MG1, and starting end parts 22a, 32a are constituted connecting external wall curves SG1, MG1 and internal wall curves SG3, MG3 including parts of external wall curves SG1, Mg1 and parts of internal wall curves SG3, MG3.

7. 发明专利

JPH04279784A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH04279784A
公开(公告)日：1992-10-05
申请号：JP4027991
申请日：1991-03-06
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： FUKANUMA TETSUHIKO , IZUMI YUJI , MORI TATSUSHI , YOSHIDA TETSUO
IPC分类号： F04C18/02
摘要： PURPOSE:To enhance mounting performance onto a vehicle and the like by eliminating useless spaces as much as possible in any area from an inner wall at the trailing end of a stationary spiral body to the inner wall of a shell, and thereby furthermore making the minimum inner diameter smaller. CONSTITUTION:The center O of the inner diameter of a shell 22 is displaced from the center point S0 of a base circle S to the direction reverse to the trailing end 23a of a stationary spiral body 23 by a distance which is equal to or more than Ror/2, but less than Ror/2+(t+c)/2.

8. 发明专利

JPH04124483A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH04124483A
公开(公告)日：1992-04-24
申请号：JP24536490
申请日：1990-09-13
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： MORI TATSUSHI , KOBAYASHI HISAO , IZUMI YUJI
IPC分类号： F04C18/02
摘要： PURPOSE:To make the whole compressor lightweight and compact by making the scroll wall thickness of a fixed scroll and a movable scroll gradually thinner towaed the outer periphery. CONSTITUTION:An outer wall curve E1 is a curve obtained by deducting Btheta from an involute and spaced gradually inward from an involute curve D as an involute angle theta is enlarged. An inner wall curve E1 is formed by moving an outer wall curve E1 by a revolving radius (r) part in the direction of a normal line l3 to form a curve E1 and further moving this curve E1 origin- symmetrically. The outer wall curve E2 and inner wall curve E2 of a movable scroll 2 are the same curves as the outer wall curve E1 and inner wall curve E1 of the fixed scroll 1. The thickness (t) is thereby decreased linearly in association with the increase of the involute angle theta. The thickness of the starting end part side of both scrolls 1, 2 exposed to high pressure is made large and the terminal end part side not receiving such pressure can be made thin, so that the compressor can be made lightweight.

9. 发明专利

JPH03202695A VARIABLE VOLUME SCROLL TYPE COMPRESSOR FOR AIR CONDITIONING OF VEHICLE 失效
公开(公告)号：JPH03202695A
公开(公告)日：1991-09-04
申请号：JP34187889
申请日：1989-12-29
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： MORI TATSUSHI , SUZUKI SHINICHI , BAN TAKASHI , FUKANUMA TETSUHIKO
IPC分类号： F04C28/10 , F04C18/02 , F04C28/16 , F04C28/24 , F04C28/26
摘要： PURPOSE:To reduce capacity without deteriorating drive feeling by controlling at least either one of an inlet throttle valve and a by-pass opening and closing mechanism toward a small volume side by means of a valve means or an electromagnet on the basis of a detected signal of engine load prior to a control valve which responds to inlet pressure. CONSTITUTION:When an electromagnetic valve 51 is excited by an engine acceleration signal, refrigerant gas flowing out from an output port 9d and refrigerant gas existing in a by-pass control chamber P1 and a throttle control chamber P2 are sent to a fluid introducing port 72. For this reason, inlet pressure ps is applied to the by-pass control chamber P1 and the throttle control chamber P2 instantaneously. Then, an opening and closing spool 412 opens a communicating port 82, and refrigerant gas in a compression chamber 5 is by-passed to an inlet side through a by-pass 81. So, compression work is not done until a contact point of scrolls 10 and 20 passes the by-pass 81. When the inlet pressure ps is applied to the throttle control chamber P2, passage area at an aperture 422 is reduced by a spool 421, and volume of refrigerant gas toward an inlet chamber 7 is reduced. Accordingly, the compressor performs small capacity operation immediately in the case of vehicle acceleration.

10. 发明专利

JPH03202694A VARIABLE VOLUME SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH03202694A
公开(公告)日：1991-09-04
申请号：JP34084389
申请日：1989-12-29
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： MORI TATSUSHI , BAN TAKASHI , FUKANUMA TETSUHIKO
IPC分类号： F04C28/10 , F04C18/02 , F04C28/16 , F04C28/24 , F04C28/26
摘要： PURPOSE:To properly carry out variable regulation volume in the whole speed range by providing an inlet throttle mechanism capable of changing passage area in a refrigerant gas inlet passage, and a by-pass port on a base wall of a fixed scroll, and by connecting a by-pass chamber to the inlet throttle mechanism, and by communicating the connecting pipe passage with an inlet pressure zone in the case where the passage area of the throttle mechanism is decreased. CONSTITUTION:When refrigerating load and inlet pressure are high, a spool 22 is held at the position of the maximum passage area of a communicating part 21c. At that time, a by-pass passage 28 of the spool 22 is closed and refrigerant gas in a by-pass chamber 17 can not circulate to an introducing passage 14 in the range of the inlet pressure. Accordingly, a check valve 19 closes a by-pass port 18, and the compressor is operated at the maximum capacity. When refrigerating load is light, the spool 22 is held at the position of narrow passage area, and the by-pass passage 29 opens. So, refrigerant gas can recirculate to the introducing passage 14. When the compressor is operated in this state in the high speed range, reduction of capacity is caused by throttling effect. In the low speed operation range, capacity reduction action is caused via the by-pass port 18. Consequently, it is possible to properly carry out variable regulation in the whole range from low speed to high speed.

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