公开(公告)号：US07914267B2

公开(公告)日：2011-03-29

申请号：US11990010

申请日：2007-12-27

申请人： Hajime Sato ,  Yoshiyuki Kimata

发明人： Hajime Sato ,  Yoshiyuki Kimata

IPC分类号： F01C1/30 ,  F03C2/00

CPC分类号： F04C18/0215 ,  F04C18/0246 ,  F04C18/322 ,  F04C23/005 ,  F04C23/008 ,  F04C29/026 ,  F04C29/028 ,  F04C29/04 ,  F04C2210/261

摘要： It is an object of the present invention to provide a multistage compressor employing a gas injection system for a CO2 cycle which is able to improve the compression efficiency and the compression performance thereof. In a multistage compressor (2) for a CO2 cycle (1) that carries out two-stage compression by discharging CO2 refrigerant gas compressed in a low-stage side rotary compressing mechanism (4) into a closed housing (3) and taking intermediate pressure refrigerant gas in the closed housing (3) by a high-stage side scroll compressing mechanism (5), a gas injection circuit (15) for injecting intermediate pressure CO2 refrigerant gas extracted from a refrigerant circuit into the closed housing (3) is connected to the closed housing (3), and the pressure ratios of the low-stage side rotary compressing mechanism (4) and the high-stage side scroll compressing mechanism (5) are substantially equivalent, and the ratios of displacement volume are substantially equivalent.

摘要翻译： 本发明的目的是提供一种采用CO 2循环的气体注入系统的多级压缩机，其能够提高压缩效率和压缩性能。 在用于二氧化碳循环（1）的多级压缩机（2）（1）中，通过将在低级侧旋转压缩机构（4）中压缩的二氧化碳制冷剂气体排出到闭合的壳体（3）中并进行中压 通过高级侧涡旋压缩机构（5）在封闭壳体（3）内的制冷剂气体，将从制冷剂回路抽取的中压二氧化碳制冷剂气体注入密闭壳体（3）的气体注入回路（15） （3），低级侧旋转压缩机构（4）和高级侧涡旋压缩机构（5）的压力比基本上相同，并且排量的比例基本相等。

公开(公告)号：US20100226807A1

公开(公告)日：2010-09-09

申请号：US12375289

申请日：2008-08-14

申请人： Hajime Sato ,  Yoshiyuki Kimata

发明人： Hajime Sato ,  Yoshiyuki Kimata

IPC分类号： F01C1/02

CPC分类号： F04C18/0215 ,  F04C23/008 ,  F04C27/005

摘要： Provided is scroll-type fluid machine that facilitates the formation of a back-pressure chamber so as to increase the design freedom in the space on the back side of the revolving scroll member, where it is difficult to ensure sufficient space, by decreasing, as much as possible, the installation space of the sealing member partitioning the back-pressure chamber. In the scroll-type fluid machine, a back-pressure chamber to which high-pressure gas is introduced is partitioned between the revolving scroll member and a fixed support member, a sealing member is constructed of an annular U sealing member, the annular U sealing member is oriented in a direction orthogonal to the back side of the revolving scroll member, and one side contacts a side surface (sealed surface) of a fixed support member.

摘要翻译： 提供了有助于形成背压室的涡旋式流体机械，从而通过减少如下的旋转涡旋构件的背面侧的空间中的设计自由度难以确保足够的空间 尽可能地，分隔背压室的密封构件的安装空间。 在涡旋式流体机械中，将高压气体导入的背压室在旋转涡旋部件与固定支承部件之间分隔开，密封部件由环状的U形密封部件构成， 构件在与旋转涡旋构件的背面正交的方向上定向，并且一侧接触固定支撑构件的侧表面（密封表面）。

公开(公告)号：US20100158732A1

公开(公告)日：2010-06-24

申请号：US11990004

申请日：2008-01-15

申请人： Hajime Sato ,  Yoshiyuki Kimata

发明人： Hajime Sato ,  Yoshiyuki Kimata

IPC分类号： F04C18/02

CPC分类号： F04C18/0215 ,  F01C17/066 ,  F04C23/008 ,  F04C27/005 ,  F04C28/06 ,  F04C28/28 ,  F04C2210/222

摘要： To provide a scroll type fluid machine which can ensure that even when the pressure ratio of the pressure P1 of its high pressure chamber (back pressure chamber) to the pressure P2 of its low pressure chamber (P1/P2) is low, its orbiting scroll be pressed against its fixed scroll without having its orbiting scroll increased in diameter to prevent any leakage of a fluid through between the front end face of the wall of its orbiting scroll and the bottom face of the end plate of its fixed scroll. The scroll type fluid machine has an Oldham's keyway (17) formed along the edge of the back side of the orbiting scroll end plate (13a) for holding one end portion of an Oldham's ring (10) slidably, and a sealing member (18) has a tongue part (18a) formed to cut off the flow of any fluid from the back pressure chamber to the Oldham's keyway (17).

摘要翻译： 为了提供一种能够确保即使当其高压室（背压室）的压力P1与其低压室（P1 / P2）的压力P2的压力比低的涡旋式流体机械时，其涡旋涡旋 被压靠其固定的涡旋件而不使其旋转涡旋件的直径增加，以防止流体通过其绕动涡旋件的壁的前端面与其固定涡旋件的端板的底面之间的任何泄漏。 涡旋型流体机具有沿着绕动涡旋端板（13a）的后侧的边缘形成的用于保持十字形环（10）的一个端部可滑动地固定的十字键槽（17）和密封构件（18） 具有舌部（18a），其形成为切断从背压室到所述十字键槽（17）的任何流体的流动。

公开(公告)号：US20100143172A1

公开(公告)日：2010-06-10

申请号：US11990010

申请日：2007-12-27

申请人： Hajime Sato ,  Yoshiyuki Kimata

发明人： Hajime Sato ,  Yoshiyuki Kimata

IPC分类号： F04B25/00

CPC分类号： F04C18/0215 ,  F04C18/0246 ,  F04C18/322 ,  F04C23/005 ,  F04C23/008 ,  F04C29/026 ,  F04C29/028 ,  F04C29/04 ,  F04C2210/261

摘要： A multistage compressor employing a gas injection system for CO2 cycle that attains enhancements of compression efficiency and compression performance. The multistage compressor is multistage compressor (2) for CO2 cycle (1) adapted to carry out two-stage compression involving emitting the CO2 refrigerant gas compressed by inferior-stage side rotary compression means (4) into sealed housing (3) and having the intermediate-pressure refrigerant gas within the sealed housing (3) suctioned by superior-stage side scroll compression means (5), wherein to the sealed housing (3), there is connected gas injection circuit (15) capable of injection of intermediate-pressure CO2 refrigerant gas extracted from a refrigerant circuit into the sealed housing (3), and wherein the inferior-stage side rotary compression means (4) and the superior-stage side scroll compression means (5) are approximately identical with each other in pressure ratio and approximately equivalent with each other in displacement ratio.

摘要翻译： 采用CO2循环气体注入系统的多级压缩机实现压缩效率和压缩性能的提高。 多级压缩机是用于二氧化碳循环（1）的多级压缩机（2），适用于进行两级压缩，包括将由下级侧旋转压缩装置（4）压缩的CO 2制冷剂气体排放到密封壳体（3）中，并具有 由上级侧涡旋压缩机构（5）吸入的密封壳体（3）内的中压制冷剂气体，其特征在于，在所述密封壳体（3）上设置有能够注入中压的连接气体注入回路（15） CO2制冷剂气体从制冷剂回路提取到密封壳体（3）中，其中下级侧旋转压缩装置（4）和上级侧涡旋压缩装置（5）的压力比大致相同 大致相当于位移比。

公开(公告)号：US20100111705A1

公开(公告)日：2010-05-06

申请号：US12443537

申请日：2008-07-22

申请人： Hajime Sato ,  Yasuharu Maruiwa ,  Yoshiyuki Kimata ,  Yoshiaki Miyamoto

发明人： Hajime Sato ,  Yasuharu Maruiwa ,  Yoshiyuki Kimata ,  Yoshiaki Miyamoto

IPC分类号： F04C28/00 ,  F04C27/00 ,  F04C29/04

CPC分类号： F25B31/002 ,  F04C27/009 ,  F16J15/3404

摘要： A refrigerant compressor is provided that can be assembled easily and can quickly discharge lubricating oil that leaks from contact sliding parts of its mechanical seal so as to prevent the oil from turning into sludge around the stationary ring. In a refrigerant compressor in which a mechanical seal which shaft seals the inner side and the outer side of a housing is installed at a portion of the housing through which a rotating shaft penetrates, a mechanical seal comprises a stationary ring securely fastened to the inner circumferential surface of a boss portion, a rotary ring securely fastened to the outer circumferential surface of the rotating shaft to the inside of the stationary ring so as to face the stationary ring, whereby sliding contact is formed between sides of the stationary ring and the rotary ring. The inner circumferential surface of the boss portion to the outside of the stationary ring is provided with an inclined portion over the entire circumference or at least the gravitationally lower portion of the inner circumferential surface, which enlarges from the stationary ring side toward an oil discharge hole to the outside of the stationary ring.

摘要翻译： 提供一种可以容易地组装的制冷剂压缩机，并可以快速排出从其机械密封件的接触滑动部分泄漏的润滑油，以防止油变成围绕静止环的污泥。 在其中轴密封壳体的内侧和外侧的机械密封件被安装在壳体的旋转轴穿过的部分的制冷剂压缩机中，机械密封件包括牢固地紧固到内周的静止环 凸台部分的表面，旋转环，其牢固地紧固到旋转轴的外周面到固定环的内侧，以便与静止环相对，从而在固定环和旋转环的侧面之间形成滑动接触 。 凸台部分到固定环外侧的内周面在内圆周表面的整个圆周或至少重力下部设置有倾斜部分，该倾斜部分从固定环侧朝向排油孔 到固定环的外部。

公开(公告)号：US20100092318A1

公开(公告)日：2010-04-15

申请号：US11989861

申请日：2007-12-27

申请人： Hajime Sato ,  Taichi Tateishi ,  Yoshiyuki Kimata ,  Yoshiaki Miyamoto ,  Yogo Takasu

发明人： Hajime Sato ,  Taichi Tateishi ,  Yoshiyuki Kimata ,  Yoshiaki Miyamoto ,  Yogo Takasu

IPC分类号： F04C18/02

CPC分类号： F04C18/0215 ,  F04C18/0276 ,  F04C23/008 ,  F04C27/007

摘要： Intended is to provide a scroll compressor capable of performing three-dimensional compressions, which can optimize a tip clearance in operation while considering a thermal expansion and a pressure deformation and which can reduce a compression leakage to improve a compression efficiency thereby to realize a high performance. The leading end faces (13c and 13d) and the bottom face of a spiral wrap (13b) have a step portion (13e), and the wrap height on the outer circumference side of the spiral wrap (13b) is made larger than that on the inner circumference side wrap height, so that the scroll compressor can perform three-dimensional compressions capable of compressing in the circumferential direction of the spiral wrap (13b) and in the wrap height direction. The spiral wrap (13b) on the inner circumference side with respect to the step portion (13e) is stepwise or continuously made gradually lower toward the center side of the spiral wrap (13b), and the tip clearance (Δi) of the spiral wrap on the inner circumference side with respect to the step portion (13) is made gradually larger toward the center side of the spiral wrap (13b).

摘要翻译： 旨在提供能够进行三维按压的涡旋压缩机，其能够在考虑热膨胀和压力变形的同时优化操作中的顶端间隙，并且可以减小压缩泄漏以提高压缩效率，从而实现高性能 。 前端面（13c，13d）和螺旋形包裹物（13b）的底面具有阶梯部（13e），螺旋形卷（13b）的外周侧的卷绕高度大于 内周侧包裹高度，使得涡旋式压缩机能够执行能够在螺旋状卷（13b）的圆周方向上和卷绕高度方向上的压缩的三维压缩。 相对于台阶部（13e）的内周侧的螺旋形包裹体（13b）朝向螺旋形卷（13b）的中心侧逐渐或连续地逐渐变小，并且顶端间隙（＆Dgr; i） 相对于台阶部（13）的内周侧的螺旋状卷绕部朝向螺旋形卷（13b）的中心侧逐渐变大。

公开(公告)号：US20080184723A1

公开(公告)日：2008-08-07

申请号：US12010784

申请日：2008-01-30

申请人： Hajime Sato ,  Yoshiyuki Kimata

发明人： Hajime Sato ,  Yoshiyuki Kimata

IPC分类号： F25B1/10

CPC分类号： F04C23/008 ,  F04C18/0215 ,  F04C18/356 ,  F04C28/06 ,  F04C28/26 ,  F25B1/10 ,  F25B49/022 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2600/0261 ,  F25B2600/2509 ,  F25B2700/1933 ,  F25B2700/21151

摘要： To provide a multistage compressor including an injection circuit, which can continue high-efficiency and high-capacity operations even if the injection circuit is turned on/off in accordance with operating conditions. A multistage compressor includes a high stage side compressing mechanism suctioning the intermediate pressure refrigerant gas compressed with a low stage side compressing mechanism to perform two-stage compression, and an injection circuit for injecting an intermediate pressure refrigerant into the intermediate pressure refrigerant gas suctioned to the high stage side compressing mechanism, the high stage side compressing mechanism including a capacity control mechanism for bypassing a refrigerant gas that is being compressed to a suction side, the injection circuit including an on/off mechanism for performing on/off control of refrigerant injection, and the capacity control mechanism and the on/off mechanism being operated in conjunction with each other.

摘要翻译： 为了提供一种包括注入电路的多级压缩机，即使注射电路根据操作条件被打开/关闭，其也可以继续高效率和高容量操作。 多级压缩机包括高压侧压缩机构，其吸入由低级侧压缩机构压缩的中压制冷剂气体进行两级压缩，以及注入回路，将中压制冷剂喷入到被吸入 高级侧压缩机构，包括用于旁路被压缩到吸入侧的制冷剂气体的容量控制机构的高级侧压缩机构，所述喷射回路包括用于进行制冷剂喷射的开/关控制的开/关机构， 并且容量控制机构和开/关机构彼此结合操作。

公开(公告)号：US08366406B2

公开(公告)日：2013-02-05

申请号：US12516667

申请日：2008-07-24

申请人： Hajime Sato ,  Yoshiyuki Kimata

发明人： Hajime Sato ,  Yoshiyuki Kimata

IPC分类号： F04B25/00 ,  F25D17/04 ,  F25D1/10

CPC分类号： F04C23/008 ,  F04C18/0215 ,  F04C18/356 ,  F04C23/005 ,  F04C29/042 ,  F04C29/045 ,  F25B1/10 ,  F25B31/008 ,  F25B2500/28 ,  F25B2600/2507 ,  F25B2600/2509

摘要： A multi-stage compressor is provided that reliably prevents liquid compression in a higher stage compression mechanism and also prevents compression efficiency degradation resulting from overheating of injection refrigerant and from the lubricating oil being raised up together with the injection refrigerant. An injection circuit is branched into a plurality of circuits. A first circuit thereof is communicatively connected to an inside space of a closed housing that is at the same side as the higher stage compression mechanism with respect to an electric motor, and a second circuit is communicatively connected to an inside space of the closed housing that is opposite from the higher stage compression mechanism with respect to the electric motor. The first circuit and the second circuit are provided with a switching mechanism for switching the injection circuit to the first circuit or the second circuit according to the dryness of the injection refrigerant.

摘要翻译： 提供了一种多级压缩机，其可靠地防止在较高级压缩机构中的液体压缩，并且还防止由于注射制冷剂的过热而导致的压缩效率降低，并且与润滑油一起与注射制冷剂一起升高。 注入电路分支成多个电路。 其第一电路与相对于电动机处于与上级压缩机构相同侧的封闭壳体的内部空间连通地连接，第二电路与封闭壳体的内部空间连通地连接， 与较高级压缩机构相对于电动机相反。 第一电路和第二电路设置有用于根据注射制冷剂的干燥度将注入电路切换到第一电路或第二电路的开关机构。

公开(公告)号：US08118577B2

公开(公告)日：2012-02-21

申请号：US12442890

申请日：2007-01-30

申请人： Yoshiyuki Kimata ,  Yoshiaki Miyamoto ,  Hajime Sato ,  Taichi Tateishi

发明人： Yoshiyuki Kimata ,  Yoshiaki Miyamoto ,  Hajime Sato ,  Taichi Tateishi

IPC分类号： F04C18/00 ,  F04C2/00

CPC分类号： F04C18/0215 ,  F04C18/0276 ,  F04C18/088 ,  F04C29/028

摘要： A scroll compressor (CP) in which the cylinder oil circulation rate of lubricant is optimized during the operation to improve the compression efficiency is provided. In the scroll compressor (CP) having a stepped shape, the cylinder oil circulation rate of lubricant taken into the scroll compressor (CP) and circulated together with refrigerant is set to fall within the range from 1% or more to 10% or less.

摘要翻译： 提供了一种涡轮压缩机（CP），其中在操作期间优化润滑剂的气缸油循环速率以提高压缩效率。 在具有台阶形状的涡旋压缩机（CP）中，被卷入到涡旋压缩机（CP）中并与制冷剂一起循环的润滑油的汽缸油循环量被设定在1％以上10％以下的范围内。

公开(公告)号：US07950912B2

公开(公告)日：2011-05-31

申请号：US11989861

申请日：2007-12-27

申请人： Hajime Sato ,  Taichi Tateishi ,  Yoshiyuki Kimata ,  Yoshiaki Miyamoto ,  Yogo Takasu

发明人： Hajime Sato ,  Taichi Tateishi ,  Yoshiyuki Kimata ,  Yoshiaki Miyamoto ,  Yogo Takasu

IPC分类号： F03C2/00 ,  F03C4/00 ,  F04C2/00

CPC分类号： F04C18/0215 ,  F04C18/0276 ,  F04C23/008 ,  F04C27/007

摘要： A scroll compressor performing three-dimensional compressions, which can optimize a tip clearance in operation while considering a thermal expansion and a pressure deformation and which can reduce a compression leakage to improve a compression efficiency thereby to realize a high performance. The leading end faces (13c and 13d) and the bottom face of a spiral wrap (13b) have a step portion (13e), and the wrap height on the outer circumference side of the spiral wrap (13b) is made larger than that on the inner circumference side wrap height. The spiral wrap (13b) on the inner circumference side with respect to the step portion (13e) is stepwise or continuously made gradually lower toward the center side of the spiral wrap (13b), and the tip clearance (Δi) of the spiral wrap on the inner circumference side with respect to the step portion (13) is made gradually larger toward the center side of the spiral wrap (13b).

摘要翻译： 一种执行三维压缩的涡旋压缩机，其可以在考虑热膨胀和压力变形的同时优化操作中的顶端间隙，并且可以减小压缩泄漏以提高压缩效率，从而实现高性能。 前端面（13c，13d）和螺旋形包裹物（13b）的底面具有阶梯部（13e），螺旋形卷（13b）的外周侧的卷绕高度大于 内周侧包裹高度。 相对于台阶部（13e）的内周侧的螺旋形包裹体（13b）朝向螺旋形卷（13b）的中心侧逐渐或连续地逐渐变小，并且顶端间隙（＆Dgr; i） 相对于台阶部（13）的内周侧的螺旋状卷绕部朝向螺旋形卷（13b）的中心侧逐渐变大。