Abstract:
A feedwater controller (2) for a flash type water tube boiler wherein feedwater flows through steam generating coils heated by combustion gases is compensated and adjusted, in order to provide proper combustion heat input over a broad range of boiler operating pressures and feedwater temperatures. Flowing feedwater affects combustion heat input through predetermined variations in fuel and air input to the boiler's burner. As disclosed, the first embodiment (2) utilizes temperature (54) and pressure (38) compensating gates (30, 32) in a cylindrical orifice (28) containing a spherical flow control member (24). Fuel/air control of the generator is provided through movement of the flow control member due to the forces induced by flowing feedwater. An alternate embodiment (102), utilizes a piston (124) in the feedwater flow path having a slotted (117) cylindrical metering orifice attached thereto. Internal of the cylindrical orifices is a cooperating, temperature compensated helical flow control member (115, 116). Feedwater flow adjustment over a wide range of feedwater temperature is provided.
Abstract:
Fluid handling apparatus which may be heat exchange apparatus or fluid reaction apparatus. The apparatus is provided with an interrupter structure (44) for disrupting the fluid boundary layers at the walls (20) of the apparatus and promoting mixing of the separated boundary layers with the adjacent core layers (52). One interrupter structure comprises a plurality of longitudinally-spaced interrupter elements (46) mounted on a core rod (48), each element comprising a plurality of blade-like members (50) each of at least approximately spherical segment profile in side elevation, the members extending mutually radially outward relative to one another to touch or nearly touch the surface or surfaces adjacent the elements. Alternatively each element comprises a respective sphere (56). The elements are spaced longitudinally from one another the distance required to provide wake interference flow of the fluid, wherein the vortex (54) upstream of one element cooperates with the vortex downstream of the next element in the fluid path. In a shell and tube type exchanger the bladed type of structure may be provided in the tubes interiors, while the spherical type of structure is provided in the shell contacting the tube exteriors.
Abstract:
A door operating assembly for opening and closing vehicle doors at a constant door edge force includes a frame (12). A teeter lever assembly (24) is pivotally mounted on the frame and is connected to a connecting rod assembly (30), (32) connecting the teeter lever assembly and the vehicle doors. An air piston assembly (16) drives a rod (22) connected to the teeter lever assembly to rotate the teeter lever assembly. A spring (62) for closing the doors is secured at a first end to the frame and at a second end to a flexible connection member (66) which wraps around the outer periphery of a teeter lever assembly cam (70) upon door opening. The energy stored in the spring at full extension is used to close the doors. To maintain the force on the doors constant during opening and closing, the cam provides a larger moment arm in the door closed position than the door open position.
Abstract:
A system for improving the efficiency of an internal combustion engine, and thereby improving fuel economy while reducing emissions, which comprises providing a stream of vaporized fuel from a vaporization chamber (20) to the air intake stream (10) of the engine. Surprisingly this system is suitable for use with both diesel and gasoline engines of conventional and rotary type, as well as jet engines (24) and other internal combustion engines. Entraining about 0.05-1.0% of the total fuel consumed in the air intake stream according to this system results in substantial improvements of fuel economy (up to 36% improvement over the same engine without the vaporization system) while reducing pollutants at least one order of magnitude below the current standards.
Abstract:
An incinerator (2) particularly suited for disposal of waste fluids containing undesirable chemicals and hydrocarbons including sodium cyanide. A novel dual fuel combustion system wherein the waste fluid (48) is injected (32) intermediate an inner high temperature flame (58) and an outer somewhat lower temperature flame, (60) provides a "blanket" combustion pattern. The blanket combustion pattern provides increased recirculation (61) in the combustion chamber (18), thereby increasing residence time and ensuring complete destruction of the undesirable waste hydrocarbon.