DEVICES FOR PRODUCING VACUUM USING THE VENTURI EFFECT

    公开(公告)号:EP3268617A4

    公开(公告)日:2018-08-01

    申请号:EP16762428

    申请日:2016-03-09

    摘要: Devices for producing vacuum using the Venturi effect are disclosed that have a housing defining a suction chamber, a motive passageway converging toward the suction chamber and in fluid communication therewith, a discharge passageway diverging away from the suction chamber and in fluid communication therewith, and a suction passageway in fluid communication with the suction chamber. Within the suction chamber, a motive exit of the motive passageway is generally aligned with and spaced apart from a discharge entrance of the discharge passageway to define a Venturi gap, and the suction passageway enters the suction chamber at a position that generates about a 180 degree change in the direction of suction flow from the suction passageway to the discharge passageway. Also or alternately, the motive passageway terminates in a spout protruding into the suction chamber disposed spaced apart from all one or more sidewalls of the suction chamber.

    VERFAHREN ZUM BETRIEB EINER VAKUUMPUMPE SOWIE VAKUUMPUMPENANORDNUNG

    公开(公告)号:EP3248850A3

    公开(公告)日:2018-02-21

    申请号:EP17173270.4

    申请日:2017-05-29

    发明人: Pierdolla, Markus

    IPC分类号: B60T13/46

    CPC分类号: B60T13/46

    摘要: Die Erfindung betrifft ein Verfahren zum Betrieb einer Vakuumpumpe (12) wie Schraubenrotor-Vakuumpumpe oder Drehkolben-Vakuumpumpe zum Fördern von Luft- und/oder Abwasser in einem Unterdruck-Entwässerungssystem, wobei die Vakuumpumpe (12) mit einem Antrieb (22) gekoppelt ist, dessen Drehzahl mittels eines Frequenzumrichters (30) gesteuert bzw. geregelt wird, wobei die Vakuumpumpe (12) eingeschaltet wird, wenn ein Unterdruck in einem Ansaugrohr (24) der Vakuumpumpe (12) unter einen vorgegeben Grenzwert fällt. Um bei kostengünstiger und kompakter Bauweise den Schutz der Vakuumpumpe in Gefahr bringenden Betriebssituationen, insbesondere bei Trockenlauf der Vakuumpumpe zu verbessern, wird vorgeschlagen, dass die Drehzahl der Vakuumpumpe (12) in Abhängigkeit eines fortlaufend in der Ansaugleitung (24) gemessenen Unterdruck-Istwertes geregelt wird, wobei dann, wenn der Unterdruck-Istwertes einen Unterdruck-Sollwert erreicht, die Drehzahl auf eine reduzierte Drehzahl geregelt und die Vakuumpumpe (12) nach Erreichen des Unterdruck-Sollwertes während einer Nachlaufzeit weiter mit der reduzierten Drehzahl angetrieben und anschließend abgeschaltet wird.

    A vehicle braking arrangement
    5.
    发明公开
    A vehicle braking arrangement 有权
    FAHRZEUGBREMSANORDNUNG

    公开(公告)号:EP2918458A1

    公开(公告)日:2015-09-16

    申请号:EP14158729.5

    申请日:2014-03-11

    摘要: The present invention relates to a vehicle braking arrangement (39) for a vehicle (1) with wheels (2, 3) contacting the ground (4) during normal running. The vehicle braking arrangement (39) comprises an emergency brake control unit (12), a first emergency braking system (6) comprising non-reversible braking means (7) arranged to operate independently of the vehicle wheels (2, 3), at least one acceleration detector (35), and a wheel brake anti-locking system (13a, 13b). The emergency brake control unit (12) is arranged to input acceleration data (a) when the wheel brake anti-locking system (13a, 13b) is active, and to calculate the coefficient of friction (µ) between the wheels (2, 3) and the ground (4). The emergency brake control unit (12) is arranged to determine if the first emergency braking system (6) should be activated in dependence of a first plurality of parameters, where one of these parameters is the coefficient of friction (µ).
    The present invention also relates to a corresponding method.

    摘要翻译: 本发明涉及一种车辆(1)的车辆制动装置(39),在正常行驶期间车轮(2,3)与地面(4)接触。 车辆制动装置(39)包括紧急制动控制单元(12),第一紧急制动系统(6)包括非可逆制动装置(7),其被布置成独立于车轮(2,3)运行,至少 一个加速度检测器(35)和一个车轮制动器防抱死系统(13a,13b)。 紧急制动控制单元(12)被布置成当车轮制动器防抱死系统(13a,13b)有效时输入加速度数据(a),并计算车轮(2,3)之间的摩擦系数(μ) )和地面(4)。 紧急制动控制单元(12)被布置成根据第一多个参数确定第一紧急制动系统(6)是否应被激活,其中这些参数之一是摩擦系数(μ)。 本发明还涉及相应的方法。

    Safety apparatus for brake of vehicle
    6.
    发明公开
    Safety apparatus for brake of vehicle 审中-公开
    不锈钢制品

    公开(公告)号:EP2735482A1

    公开(公告)日:2014-05-28

    申请号:EP13193580.1

    申请日:2013-11-19

    申请人: Hanjung Co., Ltd

    发明人: Kang, Pil-Soo

    IPC分类号: B60T13/46 B60T17/02

    摘要: A safety apparatus for a brake of a vehicle is provided. The safety apparatus for a brake of a vehicle includes a first line and a second line. The first line includes an exhaust manifold 1, an engine 2, an intake manifold 3, a check valve 4, a vacuum hose 5, a vacuum switch 6, a booster 7, a check valve 8, a vacuum hose 9, a negative connection portion 10, a vacuum switch 11 and a brake booster 12, and the second line includes a vacuum hose 15, a check valve 16, a booster 17, a check value 18, a vacuum hose 19 and a vacuum pump 20, which are connected to the negative connection portion 10. The safety apparatus can isolate a supply of electric power to a fuel motor to stop starting of the engine when the brake booster lacks a vacuum because of a deterioration of a performance of an auxiliary vacuum pump, and enable the brake to normally operate so as to prevent an accident even though a sudden acceleration occurs or the engine suddenly stops.

    摘要翻译: 提供一种用于车辆制动器的安全装置。 用于车辆制动器的安全装置包括第一线和第二线。 第一行包括排气歧管1,发动机2,进气歧管3,止回阀4,真空软管5,真空开关6,增压器7,止回阀8,真空软管9,负极连接 部分10,真空开关11和制动助力器12,第二线包括连接的真空软管15,止回阀16,升压器17,检查值18,真空软管19和真空泵20 负的连接部分10.由于辅助真空泵的性能的劣化,当制动助力器缺少真空时,安全装置可以隔离向燃料电动机的电力供应,以停止发动机的起动,并且使得 制动器正常工作,以防止即使发生突然加速或发动机突然停止而发生事故。

    VERFAHREN, COMPUTERPROGRAMM UND VORRICHTUNG ZUR ÜBERWACHUNG EINER UNTERDRUCKEINRICHTUNG
    10.
    发明授权
    VERFAHREN, COMPUTERPROGRAMM UND VORRICHTUNG ZUR ÜBERWACHUNG EINER UNTERDRUCKEINRICHTUNG 有权
    方法,计算机程序和用于监控真空装置

    公开(公告)号:EP1311418B1

    公开(公告)日:2004-10-06

    申请号:EP01953837.0

    申请日:2001-07-03

    申请人: Robert Bosch GmbH

    IPC分类号: B60T13/46 B60T17/22 B60K25/04

    CPC分类号: B60T17/02 B60T13/46 B60T17/22

    摘要: A vacuum reservoir (22) of a pneumatically operated power assist aggregate (30) of a motor vehicle is subjected to a vacuum by an electrical suction pump (28). In order to monitor the vacuum reservoir (22) and the electric suction pump (28), the invention provides that an initial pressure in the vacuum reservoir (22) is determined. In addition, a final pressure in the vacuum reservoir (22) is determined after a defined time interval. Furthermore, the difference between the final pressure and the initial pressure is established and compared with a limiting value. When the limiting value is surpassed, a signal is generated, in particular, a warning and/or alarm signal.