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Patent Agency Ranking
公开(公告)号：US20180058451A1
公开(公告)日：2018-03-01
申请号：US15551148
申请日：2016-02-23
Inventor： Takayuki HAGITA , Takayuki KUWAHARA , Katsuhiro FUJITA , Makoto TAKEUCHI , Genta YOSHIKAWA , Hiroshi YAMAZAKI , Keita KITAGUCHI , Hajime SATO
CPC classification number: F04C18/0215 , F01C1/0215 , F04C18/02 , F04C18/0276 , F04C29/0064
Abstract: A scroll fluid machine includes a pair of a fixed scroll (15) and an orbiting scroll (16). The scroll fluid machine has an one-side stepped scroll structure in which a stepped part (16E) is provided only at a predetermined position on a tooth bottom surface (16D) of a involute spiral wrap (16B) of one of the fixed scroll (15) and the orbiting scroll (16) in a spiral direction, and a stepped part (15E) corresponding to the stepped part (16E) on the tooth bottom surface (16D) is provided only at a predetermined position on a tooth top surface (15C) of a involute spiral wrap (15B) of the other scroll in a spiral direction. The stepped part (16E) on the tooth bottom surface (16D) is provided at a position on an inner side of a spiral end position (16F) of the involute spiral wrap (16B) at intake closure by an involute angle of n radians in the spiral direction or at a position on an outer side of the inner-side position.
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公开(公告)号：US20170370219A1
公开(公告)日：2017-12-28
申请号：US15544186
申请日：2016-01-22
Inventor： Makoto TAKEUCHI , Genta YOSHIKAWA , Hajime SATO , Takuma YAMASHITA , Takayuki HAGITA , Takayuki KUWAHARA , Katsuhiro FUJITA , Kazuhide WATANABE
CPC classification number: F01C1/0215 , F01C1/0276 , F01C1/0284 , F01C19/08 , F04C18/0215 , F04C2230/602
Abstract: One of a pair of a fixed scroll and an orbiting scroll is the scroll including a step portion provided only at a predetermined position along a spiral direction on a blade bottom surface of a spiral wrap, and the other one of the scrolls is the scroll including a step portion provided only at a predetermined position along a spiral direction on a blade tip surface of a spiral wrap. A blade bottom surface of an end plate of the fixed scroll is set as a reference surface for setting a chip gap between both the scrolls. When a wrap height of the spiral wrap of the orbiting scroll is represented by (L) (Lo, Li) and a wrap height of the spiral wrap of the fixed scroll is represented by (lo, li), L (Lo, Li)>1 (lo, li) is satisfied.
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公开(公告)号：US20180038368A1
公开(公告)日：2018-02-08
申请号：US15552959
申请日：2016-03-08
Inventor： Hajime SATO , Makoto TAKEUCHI , Genta YOSHIKAWA , Kazuhide WATANABE , Katsuhiro FUJITA , Takayuki HAGITA , Takayuki KUWAHARA
IPC: F04C18/02
CPC classification number: F04C18/0276 , F04C18/0215 , F04C29/12 , F04C2230/41 , F04C2230/92 , F04C2270/16
Abstract: A scroll compressor comprising a fixed scroll (15); an orbiting scroll (16) supported in a manner allowing for orbiting motion; a discharge port through which a fluid compressed by the two scrolls (15, 16) is discharged; an end plate step portion (16E) provided on an end plate of the orbiting scroll (16) formed so that a height of the end plate is higher on a center portion side in the direction of a spiral wrap and lower on an outer end side; and a wrap step portion (15E) provided on a wall portion of the fixed scroll (15) that corresponds to the end plate step portion (16E) so that a height of the wall portion is lower on the center portion side of the spiral and higher on the outer end side; wherein the orbiting scroll (16) is treated for surface hardening and the fixed scroll (15) is not treated for surface hardening.
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公开(公告)号：US20180045199A1
公开(公告)日：2018-02-15
申请号：US15555805
申请日：2016-02-19
Inventor： Takayuki KUWAHARA , Katsuhiro FUJITA , Takayuki HAGITA , Makoto TAKEUCHI , Hajime SATO , Genta YOSHIKAWA
IPC: F04C18/02
CPC classification number: F04C18/0276 , F04C18/0215 , F04C18/0246 , F04C18/0269 , F04C29/12 , F04C2230/60 , F04C2240/30
Abstract: In a scroll compressor that forms two suction volume parts by engaging paired fixed scroll and turning scroll with each other while scroll laps respectively erected on end plates of the fixed scroll and the turning scroll are opposed to each other and driving the turning scroll to revolve around the fixed scroll, out of the two suction volume parts, one of the suction volume parts that is formed close to a suction port provided in a housing is made larger than the other suction volume part.
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5.发明申请公开(公告)号：US20170239785A1
公开(公告)日：2017-08-24
申请号：US15519357
申请日：2015-08-06
Inventor： Takayuki HAGITA , Takaharu MAEGUCHI , Masafumi HAMASAKI , Yukio MICHISHITA , Yukihiro KAWAI , Hiroshi OGAWA , Makoto TAKEUCHI , Kazuhide WATANABE , Takayuki KUWAHARA , Masaki KAWASAKI , Katsuhiro FUJITA
CPC classification number: B24C3/32 , B24C1/10 , B24C11/005 , C21D7/06 , F04C18/0215 , F04C18/0269 , F04C18/0276 , F04C2230/92
Abstract: A method for manufacturing a compressor scroll that appropriately impinges cavitation bubbles on target regions of a scroll. The method includes the step of water jet peening by jetting cavitation bubbles generated underwater by a water jet at a first side of an end plate (13A) of the scroll (13), with a center (P1, P2, P3) of the cavitation bubbles being offset from a center (O) of the spiral shape of a wall portion (13B) on the end plate (13A) and the step portion (13Aa) and the stepped portion (13Ba) positioned at an outer peripheral portion of the cavitation bubbles (C).
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