公开(公告)号：US4846640A

公开(公告)日：1989-07-11

申请号：US98961

申请日：1987-09-21

Applicant: Mitsuhiro Nishida ,  Isamu Etou ,  Etsuo Morishita

Inventor： Mitsuhiro Nishida ,  Isamu Etou ,  Etsuo Morishita

IPC: F04C18/02 ,  F04C29/02

CPC classification number: F04C29/023 ,  F04C18/023

Abstract: A scroll type positive displacement apparatus which can be used as a vacuum pump is disclosed. A pair of interfitting scrolls are housed in a first container which communicates with a vacuum chamber to be evacuated by the pump. The scrolls are rotated in synchrony about parallel, nonaligned axes by a drive motor. The scrolls define a plurality of spiral compression chambers which change in size when the scrolls are rotated, compressing a gas contained in the compression chambers. The shaft of one of the scrolls has a discharge port formed therein which communicates between the centermost compression chamber and the inside of a second container which adjoins the first container. The second container is partially filled with lubricating oil and communicates with the atmosphere. The discharge port is equipped with a check valve which permits compressed gas to enter the second container from the scrolls but prevents gas from flowing in the opposite direction. The pump may be further equipped with one or more oil supply passageways formed in the shaft of the scroll in which the discharge port is formed. Lubricating oil is introduced via the oil supply passageway from the second container into one or more of the compression chambers of the pump.

Abstract translation: 公开了可用作真空泵的涡旋式正位移装置。 一对相互配合的涡卷容纳在与真空室相通的第一容器中，该真空室被泵抽真空。 滚动体通过驱动马达同步旋转并联，不对齐的轴。 涡卷限定了多个螺旋压缩室，当涡旋件旋转时其尺寸变化，压缩包含在压缩室中的气体。 一个涡旋件的轴具有形成在其中的排出口，其连通中心压缩室与邻接第一容器的第二容器的内部。 第二容器部分地装有润滑油并与大气连通。 排放口配备有止回阀，其允许压缩气体从涡管进入第二容器，但是防止气体沿相反方向流动。 泵还可以配备有形成在其中形成有排出口的涡管的轴中的一个或多个供油通道。 润滑油通过供油通道从第二容器引入泵的一个或多个压缩室。

公开(公告)号：US4973232A

公开(公告)日：1990-11-27

申请号：US330514

申请日：1989-03-30

Applicant: Isamu Etou ,  Kozaburo Fujii ,  Kiyonori Tokumitsu ,  Mitsuhiro Nishida

Inventor： Isamu Etou ,  Kozaburo Fujii ,  Kiyonori Tokumitsu ,  Mitsuhiro Nishida

IPC: F04C18/02 ,  F04C29/02

CPC classification number: F04C29/025

Abstract: A scroll machine comprises a pair of scrolls 18, 21 rotating on different axes to form a compression chamber A therebetween and discharging compressed gas in the compression chamber B to a discharge chamber, a pair of boss portions 16b, 17b immersed in lubricant oil for rotatably supporting the respective scrolls through bearing means, a first oil supply path 16c; 43 formed in one of the boss portions for communication with a bearing receiving recess 16d; 17a of the one boss portion, a second oil supply path 18b; 44, 45 formed in one of the scrolls on the side of the one boss portion for communication of the first oil supply path with the compression chamber through the recess, and a pump 33; 42 coupled to a shaft portion of the one scroll for supporting it rotatably within the bearing boss portions and for supplying oil in the discharge chamber to the first oil supply path.

Abstract translation: 涡卷机包括一对在不同轴线上旋转的涡旋件18,21，以在其间形成压缩室A，并将压缩室B中的压缩气体排出到排出室，一对凸起部分16b，17b浸在润滑油中， 支撑相应的卷轴通过轴承装置，第一供油路径16c; 43形成在一个凸起部分中，用于与轴承接收凹部16d连通; 一个凸台部分17a，第二供油路径18b; 44,45形成在一个凸台部分的一个涡卷中，用于通过凹部与第一供油路径与压缩室连通;泵33; 42，其联接到所述一个涡旋件的轴部分，用于将其可旋转地支撑在所述轴承凸起部分内，并用于将所述排出室中的油供应到所述第一供油路径。

公开(公告)号：US4842499A

公开(公告)日：1989-06-27

申请号：US178356

申请日：1988-04-06

Applicant: Mitsuhiro Nishida ,  Isamu Etou ,  Etsuo Morishita

Inventor： Mitsuhiro Nishida ,  Isamu Etou ,  Etsuo Morishita

IPC: F04C18/02 ,  F04C29/02

CPC classification number: F04C29/023 ,  F04C18/023

Abstract: A scroll-type positive displacement apparatus which can be used as a vacuum pump is disclosed. A pair of interfitting scrolls are housed in a first container which communicates with a vacuum chamber to be evacuated by the pump. The scrolls are rotated in synchrony about parallel, nonaligned axes by a drive motor. The scrolls define a plurality of spiral compression chambers which change in size when the scrolls are rotated, compressing a gas contained in the compression chambers. The shaft of one of the scrolls has a discharge port formed therein which communicates between the centermost compression chamber and the inside of a second container which adjoins the first container. The second container is partially filled with lubricating oil and communicates with the atmosphere. The discharge port is equipped with a check valve which permits compressed gas to enter the second container from the scrolls but prevents gas from flowing in the opposite direction. The pump may be further equipped with one or more oil supply passageways formed in the shaft of the scroll in which the discharge port is formed. Lubricating oil is introduced via the oil supply passageway from the second container into one or more of the compression chambers of the pump.

Abstract translation: 公开了可用作真空泵的涡旋式正位移装置。 一对相互配合的涡卷容纳在与真空室相通的第一容器中，该真空室被泵抽真空。 滚动体通过驱动马达同步旋转并联，不对齐的轴。 涡卷限定了多个螺旋压缩室，当涡旋件旋转时其尺寸变化，压缩包含在压缩室中的气体。 一个涡旋件的轴具有形成在其中的排出口，其连通中心压缩室与邻接第一容器的第二容器的内部。 第二容器部分地装有润滑油并与大气连通。 排放口配备有止回阀，其允许压缩气体从涡管进入第二容器，但是防止气体沿相反方向流动。 泵还可以配备有形成在其中形成有排出口的涡管的轴中的一个或多个供油通道。 润滑油通过供油通道从第二容器引入泵的一个或多个压缩室。

公开(公告)号：US4865530A

公开(公告)日：1989-09-12

申请号：US178300

申请日：1988-04-06

Applicant: Mitsuhiro Nishida ,  Isamu Etou ,  Etsuo Morishita

Inventor： Mitsuhiro Nishida ,  Isamu Etou ,  Etsuo Morishita

IPC: F04C18/02 ,  F04C29/02

CPC classification number: F04C29/023 ,  F04C18/023

Abstract: A scroll-type positive displacement apparatus which can be used as a vacuum pump is disclosed. A pair of interfitting scrolls are housed in a first container which communicates with a vacuum chamber to be evacuated by the pump. The scrolls are rotated in synchrony about parallel, nonaligned axis by a drive motor. The scrolls define a plurality of spiral compression chambers which change in size when the scrolls are rotated, compressing a gas contained in the compression chambers. The shaft of one of the scrolls has a discharge port formed therein which communicates between the centermost compression chamber and the inside of a second container which adjoins the first container. The second container is partially filled with lubricating oil and communicates with the atmosphere. The discharge port is equipped with a check valve which permits compressed gas to enter the second container from the scrolls but prevents gas from flowing in the opposite direction. The pump may be further equipped with one or more oil supply passageways formed in the shaft of the scroll in which the discharge port is formed. Lubricating oil is introduced via the oil supply passageway from the second container into one or more of the compression chambers of the pump.

Abstract translation: 公开了可用作真空泵的涡旋式正位移装置。 一对相互配合的涡卷容纳在与真空室相通的第一容器中，该真空室被泵抽真空。 卷轴通过驱动电机以并行的，非对齐的轴线同步旋转。 涡卷限定了多个螺旋压缩室，当涡旋件旋转时其尺寸变化，压缩包含在压缩室中的气体。 一个涡旋件的轴具有形成在其中的排出口，其连通中心压缩室与邻接第一容器的第二容器的内部。 第二容器部分地装有润滑油并与大气连通。 排放口配备有止回阀，其允许压缩气体从涡管进入第二容器，但是防止气体沿相反方向流动。 泵还可以配备有形成在其中形成有排出口的涡管的轴中的一个或多个供油通道。 润滑油通过供油通道从第二容器引入泵的一个或多个压缩室。