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    • 31. 发明公开
    • DUAL FUEL MIXER-EMULSIFIER.
    • DOPPELTER BRENNSTOFFMISCHEMULGIERER。
    • EP0097155A4
    • 1984-04-27
    • EP82900578
    • 1981-12-17
    • CATERPILLAR TRACTOR CO
    • BAILEY JOHN M
    • F02B7/02B01F3/08B01F5/04F02B3/06F02D19/08F02M43/00
    • F02D19/0676B01F3/0861B01F3/088B01F5/04F02B3/06F02D19/0605F02D19/0655F02D19/066F02D19/0684F02D19/081Y02T10/36
    • It is desirable to utilize alcohol in conjunction with diesel fuel in a diesel engine. Herein, a mixer (24) includes a chamber (28) and an elongated flow path (30) having first (32) and second (34) end portions (32, 34). A plurality of restricted orifices (36) connect the flow path (30) with the chamber (28) at a plurality of positions along the length of the flow path (30). The mixer (24) is positioned and adapted to receive diesel fuel in a first end portion (32) of the flow path (30) and alcohol in the second end portion (34) of the flow path (30). Desired quantitites of diesel fuel and alcohol are measured out into the flow path (30). Thereafter, they flow through the restricted orifices (36) under pressure and are thoroughly mixed and emulsified in the chamber (28). Uniformity of diesel fuel-alcohol flow is thereby attained during steady state operating conditions. Control of the diesel-alcohol mixing ratio and of total fuel flow are also described, both as functions of engine operating conditions.
    • 在柴油机中使用醇与柴油一起使用是合乎需要的。 这里,混合器(24)包括腔室(28)和具有第一(32)和第二(34)端部(32,34)的细长流动路径(30)。 多个限制孔口36在沿着流动路径30的长度的多个位置处将流动路径30与腔室28连接。 混合器(24)被定位并适于在流动路径(30)的第一端部(32)和流动路径(30)的第二端部部分(34)中接收柴油燃料。 柴油燃料和酒精的所需数量被测量到流路(30)中。 之后,它们在压力下流过限制孔口(36),并在腔室(28)中充分混合并乳化。 由此在稳态操作条件下获得柴油 - 酒精流的均匀性。 还描述了柴油 - 酒精混合比和总燃料流量的控制,两者均作为发动机运行条件的函数。
    • 32. 发明公开
    • UNLOADING MEANS FOR FLOW-PRESSURE COMPENSATED VALVE.
    • 排出装置泄压阀。
    • EP0060247A4
    • 1984-04-27
    • EP81901176
    • 1980-09-12
    • CATERPILLAR TRACTOR CO
    • RUSEFF WALTER Z
    • F16H61/42F04B1/32F04B49/08F16H39/46
    • F04B1/324F04B49/08
    • A "load-plus" valve (34) is oftentimes utilized in the servo-system (20) for a variable displacment pump (11) to maintain pump discharge pressure (P u) above a minimum pressure level and above a load pressure signal (P u) generated in a fluid actuator (13). Valves of this type normally include a margin spring (39) for biasing a modulating spool (36) against the opposing force of pump discharge pressure (P u) to maintain a constant margin over the load pressure signal (P u) throughout the working range of the system. When the load pressure signal (P u) exceeds a maximum pressure level, it is normally vented to tank (12), or continuously bled to tank across an orifice, resulting in horsepower losses. The control package employed in systems of this type are also somewhat bulky. The improved fluid circuit (10) of this invention employs an unloading arrangement (50/50a) in association with the above type of "load-plus" valve (34) which functions to inactivate the margin spring (39) to reduce the above margin between the pump discharge pressure (P u) and load pressure signal (P u) to zero in response to the load pressure signal (P u) exceeding a maximum pressure level.