公开(公告)号：US10590920B2

公开(公告)日：2020-03-17

申请号：US14930738

申请日：2015-11-03

Applicant: Danfoss A/S

Inventor： Welm Friedrichsen ,  Lars Martensen ,  Frank Holm Iversen ,  Palle Olsen ,  Stig Kildegaard Andersen

IPC: F04B1/22 ,  F04B53/10 ,  F04B1/20 ,  F04B1/2021

Abstract: A pump device (1) is provided comprising: a shaft (2), rotor means (3a, 3b) fixed to said shaft (2) in rotational direction, said rotor means (3a, 3b) having pressure chambers (5a, 5b) the volume of which varying during a rotation of said rotor means (3a, 3b), port plate means (15a, 15b) having a through going opening (16a, 16b) for each of said pressure chambers (5a, 5b) and being connected to said rotor means (3a, 3b) in rotational direction, and valve plate means (17a, 17b) cooperating with said port plate means (15a, 15b). It is intended to pressurize a high volume of fluid, in particular water, within a limited space. To this end said rotor means (3a, 3b) comprise a first rotor (3a) and at least a second rotor (3b), both rotors being fixed to said shaft (2) in rotational direction, said first rotor (3a) having at least a first pressure chamber (5a) and said second rotor (3b) having at least a second pressure chamber (5b), said port plate means (15a, 15b) having a first port plate (15a) and at least a second port plate (15b), said first port plate (15a) having a through going opening (16a) for said first pressure chamber (5a) and being connected to said first rotor (3a) in rotational direction, said second port plate (15b) having a through going opening (16b) for said second pressure chamber (5b) and being connected to said second rotor (3b) in rotational direction, said valve plate means (17a, 17b) having a first valve plate (17a) and at least a second valve plate (17b), said first valve plate (17a) cooperating with said first port plate (15a), and said second valve plate (17b) cooperating with said second port plate (15b), wherein at least one of said first rotor (3a) and said second rotor (3b) comprises force generating means (19) pressing said second port plate (15b) against said second valve plate (17b) even in absence of hydraulic pressure in said second pressure chamber (5b).

公开(公告)号：US09279424B2

公开(公告)日：2016-03-08

申请号：US13659011

申请日：2012-10-24

Applicant: Danfoss A/S

Inventor： Hans Christian Petersen ,  Ove Thorboel Hansen ,  Lars Martensen ,  Palle Olsen ,  Erik Haugaard

IPC: F04C15/00 ,  F04C2/344 ,  F01C21/10 ,  F01C21/08

CPC classification number: F04C15/0023 ,  F01C21/0809 ,  F01C21/108 ,  F04C2/344 ,  F04C2230/91

Abstract: The invention concerns a vane cell machine with a stator and a rotor having radially displaceable vanes arranged in guides, said vanes bearing on an inside of the stator and bordering, together with the rotor, the stator and a side wall, work chambers at each axial end of the rotor. It is endeavored to provide a vane cell machine that has a good internal tightness, in which the wear is still kept small. For this purpose, in a radially internal area the side wall comprises an insert that is axially movable in the side wall and has a pressure application surface axially inside and axially outside.

Abstract translation: 本发明涉及具有定子和转子的叶片式电池​​机，其具有布置在导向器中的径向位移的叶片，所述叶片承载在定子的内侧，与转子一起与定子和侧壁接合，每个轴向的工作室 转子末端。 努力提供具有良好的内部密封性的叶片式电池​​机，其中磨损仍然很小。 为此，在径向内部区域中，侧壁包括可在侧壁中轴向移动并具有轴向内侧和轴向外侧的压力施加表面的插入件。

公开(公告)号：US20130108498A1

公开(公告)日：2013-05-02

申请号：US13659011

申请日：2012-10-24

Applicant: Danfoss A/S

Inventor： Hans Christian Petersen ,  Ove Thorboel Hansen ,  Lars Martensen ,  Palle Olsen ,  Erik Haugaard

IPC: F04C15/00

CPC classification number: F04C15/0023 ,  F01C21/0809 ,  F01C21/108 ,  F04C2/344 ,  F04C2230/91

Abstract: The invention concerns a vane cell machine with a stator and a rotor having radially displaceable vanes arranged in guides, said vanes bearing on an inside of the stator and bordering, together with the rotor, the stator and a side wall, work chambers at each axial end of the rotor. It is endeavoured to provide a vane cell machine that has a good internal tightness, in which the wear is still kept small. For this purpose, in a radially internal area the side wall comprises an insert that is axially movable in the side wall and has a pressure application surface axially inside and axially outside.

Abstract translation: 本发明涉及具有定子和转子的叶片式电池​​机，其具有布置在导向器中的径向位移的叶片，所述叶片承载在定子的内侧，与转子一起与定子和侧壁接合，每个轴向的工作室 转子末端。 努力提供具有良好的内部密封性的叶片式电池​​机，其中磨损仍然很小。 为此，在径向内部区域中，侧壁包括可在侧壁中轴向移动并具有轴向内侧和轴向外侧的压力施加表面的插入件。