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    • 2. 发明申请
    • Fire truck booster pump
    • 消防车增压泵
    • US20050077057A1
    • 2005-04-14
    • US10963376
    • 2004-10-12
    • Michael Laskaris
    • Michael Laskaris
    • A62C25/00A62C27/00A62C29/00A62C35/00F04D29/66F04F5/10F04F5/46F04F5/54
    • F04F5/10A62C25/00F04D29/669F04F5/46F04F5/54
    • A booster pump for maintaining a fluid pressure at an inlet of a primary pump above a cavitation fluid pressure includes a suction hose, a booster tube, a primary pump hose and a bleed hose. The suction hose has a suction end and a feed end. The booster tube includes inlet and outlet ends and a nozzle. The inlet end is connected to the feed end. The primary pump hose includes a first end and a second end and the first end is connected to the outlet end while the second end is connected to the inlet of the primary pump. The bleed hose includes a main end and a boost end with the main end being connected to the outlet of the primary pump and the boost end being connected to the nozzle. The bleed hose selectively diverts a bleed fluid portion from the primary pump for injection into the booster tube.
    • 用于将主泵的入口处的流体压力保持在空化流体压力以上的增压泵包括抽吸软管,增压管,初级泵软管和放气软管。 抽吸软管有吸入端和进料端。 增压管包括入口端和出口端以及喷嘴。 入口端连接到进料端。 主泵软管包括第一端和第二端,并且第一端连接到出口端,而第二端连接到主泵的入口。 排放软管包括主端和升压端,主端连接到主泵的出口,并且升压端连接到喷嘴。 排放软管选择性地将排出流体部分从主泵转移到增压管中。
    • 3. 发明授权
    • Foam pump system for firefighting apparatus
    • 泡沫泵系统消防设备
    • US6009953A
    • 2000-01-04
    • US806045
    • 1997-02-25
    • Michael LaskarisRichard Teske
    • Michael LaskarisRichard Teske
    • A62C5/02A62C27/00
    • A62C5/02
    • A foam pump system for injecting chemical foamant into a firefighting stream includes a water pump, a foam pump, and an optional air compressor which are all connected to a common transmission. The transmission includes an input shaft which may be connected to a single power source (such as an engine of a fire truck) for driving the water pump, foam pump, and air compressor. The water pump, foam pump, and air compressor are preferably mounted (directly or indirectly) on the transmission to provide a compact unit that may be sold in modular form for ready incorporation into a firefighting apparatus such as a fire truck. The system also advantageously includes a hydrostatic transmission for selectively and accurately driving and controlling the speed of the foam pump and the resultant proportion of chemical foamant that is injected into the fire fighting stream. The hydrostatic transmission preferably includes a hydraulic motor for driving the foam pump and a variable displacement hydraulic pump for driving the hydraulic motor. By varying the displacement of the hydraulic pump, the speed of the foam pump can be selectively and accurately controlled. The displacement of the hydraulic pump is controlled with an ellectrically operated actuator, such as a hydraulic actuator, a pneumatic actuator, or an electrical solenoid. The system also includes a flow control system for measuring the flow rates of the foam and fire stream and for selectively controlling the proportion of chemical foamant introduced into the fire stream by adjusting the speed of the foam pump with the actuator and hydrostatic transmission.
    • 用于将化学发泡剂喷射到消防流中的泡沫泵系统包括水泵,泡沫泵和可选的空气压缩机,其全部连接到公共变速器。 变速器包括可连接到用于驱动水泵,泡沫泵和空气压缩机的单个动力源(例如消防车的发动机)的输入轴。 水泵,泡沫泵和空气压缩机优选地安装(直接或间接)在变速器上,以提供可以以模块形式出售的紧凑型单元,以便准备地结合到消防车辆等消防设备中。 该系统还有利地包括用于选择性地和精确地驱动和控制泡沫泵的速度的流体静力传动装置以及注入消防流中的化学发泡剂的合成比例。 静压变速器优选地包括用于驱动泡沫泵的液压马达和用于驱动液压马达的可变排量液压泵。 通过改变液压泵的排量,可以选择性和精确地控制泡沫泵的速度。 液压泵的位移由电动操作的致动器如液压致动器,气动致动器或电螺线管控制。 该系统还包括用于测量泡沫和火焰流的流量的流量控制系统,并且通过用致动器和静液压传动调节泡沫泵的速度来选择性地控制引入到火流中的化学发泡剂的比例。