Orbital Pump Device Comprising Crowning for Delivering Liquid Medium As Well As Method And Use

    公开(公告)号:US20210071657A1

    公开(公告)日:2021-03-11

    申请号:US16948202

    申请日:2020-09-08

    IPC分类号: F04B43/14

    摘要: In many pump types, in particular in orbital pumps, there is an optimization need with regard to the running characteristics, in particular with regard to parameters which relate to the delivery flow. What is provided is an orbital pump device for delivering liquid medium by a rotational movement including a hydraulic housing surrounding a hydraulic chamber in a fluid-tight manner at least one membrane unit which is arranged inside the hydraulic chamber in flat contact with an inner jacket surface of the hydraulic housing; and an inlet and an outlet provided in the hydraulic housing. At least one crowning is provided at the inner jacket surface and/or at the membrane unit such that a radial gap between the membrane unit and the inner jacket surface is defined by the crowning in a circumferential section of less than 360°, and in particular less than 180°.

    Pump device with deformable pump ring

    公开(公告)号:US10533418B2

    公开(公告)日:2020-01-14

    申请号:US15557113

    申请日:2016-03-31

    摘要: The invention relates to a pump device for pumping a liquid having a hydraulics housing (12), in which a pump ring (14), a pump ring support (16), and an eccentric (18) are accommodated, which eccentric is to be driven by a shaft (20), which defines an axial and a radial direction, wherein the pump ring (14) has a first axial side (45) and a second axial side (47), wherein the hydraulics housing (12) comprises an annular portion (22) and a first and a second lateral section (24, 26), wherein the two lateral sections (24, 26) are arranged opposite each other, wherein the pump ring (14) is arranged, at least in some portions, between the two lateral sections (24, 26) of the hydraulics housing (12), and wherein on the first axial side (45) and the second axial side (47), the profile of the pump ring (14) in each case follows a contour with an S-formed curve (32) with a convex section (34) and a concave section (36), wherein the convex section (34) lies further outwards in a radial direction of the shaft (20) in comparison with the concave section (36).

    Orbital pump device comprising crowning for delivering liquid medium as well as method and use

    公开(公告)号:US11486383B2

    公开(公告)日:2022-11-01

    申请号:US16948202

    申请日:2020-09-08

    IPC分类号: F04B43/14 F04B43/12

    摘要: In many pump types, in particular in orbital pumps, there is an optimization need with regard to the running characteristics, in particular with regard to parameters which relate to the delivery flow. What is provided is an orbital pump device for delivering liquid medium by a rotational movement including a hydraulic housing surrounding a hydraulic chamber in a fluid-tight manner at least one membrane unit which is arranged inside the hydraulic chamber in flat contact with an inner jacket surface of the hydraulic housing; and an inlet and an outlet provided in the hydraulic housing. At least one crowning is provided at the inner jacket surface and/or at the membrane unit such that a radial gap between the membrane unit and the inner jacket surface is defined by the crowning in a circumferential section of less than 360°, and in particular less than 180°.

    Device for ventilating a vehicle seat and use of said device for a passenger vehicle seat

    公开(公告)号:US10336224B2

    公开(公告)日:2019-07-02

    申请号:US15514131

    申请日:2015-08-27

    IPC分类号: A47C7/72 A47C31/00 B60N2/56

    摘要: A device for ventilating a vehicle seat having a cushion (12) which is resilient with respect to user contact and which is constructed to form a seat and/or back contact face (24) and which has an air flow channel (16, 17) which forms an air outlet (15) in the direction toward the seat or back contact face, an air-permeable covering unit (18) which is formed in order to at least partially cover the air outlet and which is preferably constructed so as to be rigid and/or grid-like, and a ventilator rotor (30) which is associated with the air flow channel and which is driven in an electro-motive manner and a ventilator unit (14) which has a ventilator housing (32) which at least partially radially surrounds the ventilator rotor, characterized in that the covering unit and the ventilator unit are fixed on or in the cushion with spacing from each other along the air flow channel and without direct connection of portions of the covering unit and the ventilator unit, and the ventilator housing has at the peripheral and/or outer side first fixing means (34; 32; 80) which are constructed in order to secure the ventilator unit in the air flow channel by engaging in and/or in order to cooperate with second fixing means (12; 70; 74) which are provided on or in an inner wall portion of the air flow channel.

    DEVICE FOR VENTILATING A VEHICLE SEAT AND USE OF SAID DEVICE FOR A PASSENGER VEHICLE SEAT

    公开(公告)号:US20170291517A1

    公开(公告)日:2017-10-12

    申请号:US15514131

    申请日:2015-08-27

    IPC分类号: B60N2/56

    摘要: A device for ventilating a vehicle seat having a cushion (12) which is resilient with respect to user contact and which is constructed to form a seat and/or back contact face (24) and which has an air flow channel (16, 17) which forms an air outlet (15) in the direction toward the seat or back contact face, an air-permeable covering unit (18) which is formed in order to at least partially cover the air outlet and which is preferably constructed so as to be rigid and/or grid-like, and a ventilator rotor (30) which is associated with the air flow channel and which is driven in an electro-motive manner and a ventilator unit (14) which has a ventilator housing (32) which at least partially radially surrounds the ventilator rotor, characterized in that the covering unit and the ventilator unit are fixed on or in the cushion with spacing from each other along the air flow channel and without direct connection of portions of the covering unit and the ventilator unit, and the ventilator housing has at the peripheral and/or outer side first fixing means (34; 32; 80) which are constructed in order to secure the ventilator unit in the air flow channel by engaging in and/or in order to cooperate with second fixing means (12; 70; 74) which are provided on or in an inner wall portion of the air flow channel.