Abstract: The spray tip of a diesel fuel injector, downstream of a conventional pressure actuated injector needle valve, includes a plug holder used to support and retain a hollow inner plug valve element, containing a number of radial through orifices communicating with an annular groove in the outer peripheral surface of the plug valve element and an outer hoop valve element with a hoop-skirt valve encircling the inner plug valve element. A shrink-fit exists between the hoop-skirt valve and the inner plug valve element to provide for a zero sac volume spray tip. The hoop-skirt valve operates as an integral hoop valve which is expanded relative to the inner plug valve element when supplied with high pressure fuel to form therewith a fuel discharge annulus.

Abstract: A fuel injection nozzle for supplying fuel to an internal combustion engine is of the so-called outwardly opening type and has a valve head located in a pocket the wall of which is of right cylindrical form. A circumferential groove is formed in the wall of the pocket and fuel is communicated thereto by a further groove or grooves on the valve head. The valve head forms a first outlet communicating with the circumferential groove and through which on the initial lift of the valve head fuel flows to produce a low penetration fuel spray. As the head is further lifted ports in the valve head are exposed to the groove and these ports communicate with a central outlet in the head. A penetrative jet of fuel issues from the central outlet.

Abstract: A pintle on the tip of the nozzle needle, which is disposed to be fitted through the nozzle hole of the nozzle body opening in a combustion chamber of an engine, has a conical portion. The conical portion extends along substantially the whole length of the nozzle hole when the nozzle needle has its seating portion seated on a valve seating portion of the nozzle body, and has a depth gradually decreasing toward the combustion chamber to define between itself and the nozzle needle an annular gap gradually expanding toward the combustion chamber. A portion of the pintle, which is substantially on a level with an end of the nozzle hole remote from the combustion chamber when the seating portion of the nozzle needle is in its seated position, has a diameter substantially equal to the inner diameter of the above end of the nozzle hole.

Abstract: In a continuous press of a screw blade type, a driving shaft is rotatably secured to a frame by means of thrust bearings at both ends of the driving shaft, a screw drum having an increasing diameter towards center is disposed around the driving shaft to rotate therewith, a pair of screw blades are helically arranged around the screw drum symmetrically with respect to the center of screw drum, and an outer drum having a number of small filtering holes is arranged around the screw blades. A pair of inlets for introducing raw materials to be pressed are provided at both ends of the outer drum and an outlet from which the pressed raw materials are discharged is also provided in the outer drum at its center. At the outlet a pair of cone-shaped plates are arranged movably in an axial direction of the press and these plates are resiliently pressed towards each other. The pressure applied to the cake is automatically maintained constant due to the axial movement of the plates.

Abstract: A method of atomization control and related gas atomizing nozzles are described which enable variation of the degree of atomization, the liquid and gas flow rates and the atmospheric spray dilution. Varying the thickness of flowing liquid and adjacent atomizing gas sheets varies spray droplet size and atmospheric spray dilution. Transverse sheet size is varied to change nozzle capacity. Annular and linear sheet forming nozzles are described. Nozzles are also described with flexible divider walls whereby thickness of the flowing sheets may be varied by altering relative flow pressures.

Abstract: An automatically regulated constant-pressure fire-fighting nozzle having a pressure-responsive baffle element for adjusting the size of the discharge orifice in response to supply pressure changes. An upstream-directed baffle extension in opposition to the direction of fluid flow for creating a low-pressure zone adjacent said baffle element in response to high supply volume to modulate the effective displacement force acting on the orifice-regulating baffle element. The extension also serving to adjustably restrict the fluid flow passage to said orifice in response to pressure-induced displacement of said baffle element.

Abstract: A manually operated sprayer for dispensing liquids from a container includes an improved, self-sealing outlet check valve having a resilient diaphragm convexed toward and in seating engagement with the dispensing orifice. The diaphragm is designed to flex out of engagement with the dispensing orifice when the pressure of the liquid in the pump chamber exceeds the engaging force of the diaphragm, thereby permitting the liquid in the pump chamber to flow out of the dispensing orifice in an atomized form.

Abstract: This invention relates to a flow regulating device which may be readily installed in a water line to reduce the volume of water flowing therethrough resulting in a substantial savings in water consumption.

Abstract: Disclosed is a device for atomizing and dispersing a fluid in the form of a high speed dispersion filmy stream toward the environment surrounding the device. The device has a hollow cylindrical fluid barrel element in which a fluid, or fluids, under pressure is ejected so as to turn around an axis of the fluid barrel element, and a fluid dispersing round member defining a small dispersing opening between a conically convexed dispersing surface of the dispersing round member and a complementary end face of the fluid barrel element. The fluid dispersing round member is held by a flexible support structure so that the fluid dispersing round member is hydrodynamically drawn toward the fluid barrel.

Abstract: An improved drip irrigation emitter for use in drip irrigation systems, the drip irrigation emitter including a hollow body with at least one outlet port and an inlet connector for receiving fluid from main supply lines, a collar with a center bore movably retained within the hollow body, a tapered pin fixedly attached to the emitter and projecting into the collar bore to form an orifice defined as the volume space between the boundary of the bore and the pin periphery for permitting fluid flow between the inlet and outlet ports and a spring assembly for transmitting a continuously variable yieldable force on the collar in a direction to close the orifice.

Abstract: A rotary combustion engine having a fuel nozzle for discharging fuel into each working chamber just prior to combustion and in which means are provided for increasing the width of the spray angle of the fuel discharged by said nozzle as the quantity of fuel discharged by the nozzle into each working chamber is increased.