公开(公告)号：US4092967A

公开(公告)日：1978-06-06

申请号：US730071

申请日：1976-10-06

申请人： Robert Alan Haslett

发明人： Robert Alan Haslett

IPC分类号： F02P23/02 ,  F02B1/04 ,  F02B9/00 ,  F02B23/00 ,  F02B23/06 ,  F02B51/02 ,  F02B75/12 ,  F02F3/26 ,  F02F3/28

CPC分类号： F02B23/0603 ,  F02B23/0636 ,  F02B51/02 ,  F02F3/28 ,  F02B1/04 ,  F02B2023/0606 ,  F02B2023/0609 ,  F02B2075/125 ,  F02B23/0621 ,  F02B23/0624 ,  F02B23/0669 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/126

摘要： An internal combustion engine of reciprocating-piston type with injection of liquid or gaseous hydrocarbon fuel, provided with catalytic means for initiating the combustion of the air/fuel charge in the combustion chamber of the or each cylinder. The major part of the combustion chamber of each cylinder is afforded by a recess formed in the piston crown, and a catalytic element of mesh, grid, perforated or sintered or other construction, is carried by the piston in a position at least partly overlying the said recess, the fuel being injected into the said recess to contact and pass through the catalytic element, being ignited by its contact with the catalytic element.

摘要翻译： 具有喷射液体或气态碳氢化合物燃料的往复式活塞式内燃机，其具有催化装置，用于启动该气缸或每个气缸的燃烧室中的空气/燃料装料的燃烧。 每个气缸的燃烧室的主要部分由形成在活塞顶部的凹部提供，并且网状，格栅，穿孔或烧结或其它结构的催化元件由活塞承载在至少部分地覆盖 所述凹部，燃料被注入到所述凹部中以接触并通过催化元件，其被与催化元件的接触点燃。

公开(公告)号：US4121455A

公开(公告)日：1978-10-24

申请号：US821196

申请日：1977-08-02

申请人： Robert Alan Haslett ,  Charles Peter Howard ,  Richard Winston Wheeler

发明人： Robert Alan Haslett ,  Charles Peter Howard ,  Richard Winston Wheeler

IPC分类号： G01F1/704 ,  G01M15/04 ,  G01F1/70

CPC分类号： G01F1/704

摘要： In measuring the mass flow rate of the inlet air entering an internal combustion engine or other combustion device, or of the exhaust gas discharged therefrom, a constant metered flow of helium or other inert tracer gas is introduced through a temperature-controlled critical flow orifice into the air intake of the engine or device, and the exhaust gas is continuously sampled and the sample analyzed by means of a mass spectrometer. From the measurement of the concentration of the tracer gas in the exhaust gas sample provided by the mass spectrometer, the required mass flow rate is derived and displayed. The mass spectrometer may be employed to measure in sequence the concentrations of other constituents of the exhaust gas sample as well as that of the tracer gas, and from these measurements other parameters related to the mass flow rate of intake air may be derived by means of a microprocessor, and displayed.

摘要翻译： 在测量进入内燃机或其他燃烧装置的入口空气或从其排出的废气的质量流量时，将恒定的氦气或其他惰性示踪气体的流量通过温度控制的临界流量孔引入 发动机或装置的进气口和废气被连续采样，并通过质谱仪分析样品。 从质谱仪提供的排气样品中的示踪气体的浓度的测量中，导出并显示所需的质量流量。 可以使用质谱仪来依次测量废气样品和示踪气体的其它组分的浓度，并且根据这些测量，与进气的质量流量相关的其它参数可以通过 一个微处理器，并显示。

公开(公告)号：US4173143A

公开(公告)日：1979-11-06

申请号：US933044

申请日：1978-08-10

申请人： Roy Venton-Walters

发明人： Roy Venton-Walters

IPC分类号： G01F1/32 ,  G01P5/01

CPC分类号： G01P5/01

摘要： A fluid flow meter, for example for measuring the velocity of an air flow, comprises a flow duct having a transverse vortex-shedding bar, the ultrasonic or other detector means for sensing the shedding of Karman vortices from the bar as the fluid flow passes the bar, and for converting the alternating output signal of the detector means into a signal of square-wave form of operating a digital counter, and one or more additional cross-members extending across the flow duct downstream of the flow section where the vortex-sensing means operates, the additional cross-member extending transversely to the vortex-shedding bar and being of cylindrical or aerofoil cross-section, or of rectangular or other cross-section having a flat upstream face parallel to the bar. The provision of the additional cross-member is found to improve the regularity of the vortex-shedding from the bar and hence the accuracy of the meter reading.

摘要翻译： 例如用于测量空气流速度的流体流量计包括具有横向涡流脱落杆的流动管道，超声波或其它检测器装置，用于当流体流过所述流体流动时感测卡门涡旋从棒中脱落 并且用于将检测器装置的交替输出信号转换成操作数字计数器的方波形式的信号，以及在流动部分的下游延伸的一个或多个附加横向构件，其中涡流感测 装置操作，横向于涡流脱落杆横向延伸并且具有圆柱形或翼型横截面的附加横向构件或具有平行于杆的平坦上游面的矩形或其它横截面。 发现附加横梁的设置可以提高从杆的涡流脱落的规律性，从而提高抄表的精度。

公开(公告)号：US4066050A

公开(公告)日：1978-01-03

申请号：US642307

申请日：1975-12-18

申请人： Martin Douglas Ford-Dunn

发明人： Martin Douglas Ford-Dunn

IPC分类号： F01L3/20 ,  F02B25/16 ,  F02B25/20 ,  F02B33/30 ,  F02B75/02 ,  F02B33/04

CPC分类号： F01L3/205 ,  F02B33/30 ,  F02B2075/025

摘要： A two-stroke internal combustion engine has a plurality of transfer ports controlled by the movement of the piston, the transfer ports being at the ends of passages each extending from the interior of the crankcase through the cylinder wall so as to place the crankcase interior in communication with the upper working space in the cylinder above the piston when its associated transfer port is uncovered by downward movement of the piston. Some, but not all, of the transfer port passages are provided with pressure-responsive non-return valves which are lightly spring-biassed towards closed positions in which they restrict the gas flow through those passages, in the direction towards the upper working space in the cylinder, causing the gas flow from the crankcase to travel at increased velocities through the remaining transfer port passage or passages. When the pressure differential between the crankcase interior and the upper part of the cylinder exceeds a predetermined minimum value the non-return valves open to permit bulk gas flow through their associated transfer port passages and their associated ports.

摘要翻译： 二冲程内燃机具有由活塞运动控制的多个输送口，传送口位于通道的端部，每个通道从曲轴箱的内部延伸穿过气缸壁，以将曲轴箱内部放置在 当活塞的相关联的传送端口被活塞的向下运动未被覆盖时，与活塞上方的气缸中的上部工作空间连通。 一些但不是全部的输送口通道设置有压力响应止回阀，其对于关闭位置轻微地弹簧偏压，在这些位置中，它们限制气体流过这些通道，朝向上部工作空间的方向 气缸，使得来自曲轴箱的气流以增加的速度行进通过剩余的输送口通道。 当曲轴箱内部和气缸上部之间的压力差超过预定的最小值时，止回阀打开以允许大量气体流过其相关联的转移口通道及其相关联的端口。