Abstract: A fuel rail assembly supports injectors for delivering fuel to an engine and includes a pressure regulator to establish the pressure of the fuel supplied to the injectors. The fuel rail body and the pressure regulator base are fabricated from sheet metal, and the pressure regulator base is secured directly to the fuel rail body.

Abstract: A compact central fuel rail supports injectors which deliver fuel to both banks of a V-engine. THe fuel rail is extruded with both fuel supply and fuel return passages, a single circular plug provides a closure for the associated ends of the passages, and a plug in the return passage limits interconnection of the passages.

Abstract: A fuel rail supporting injectors for delivering fuel to an engine has fuel supply and fuel return passages interconnected through a recess in a plug at each end of the fuel rail. The recesses are calibrated to direct the proper proportion of the fuel past the injectors. The fuel supply passage is configured to allow separation of fuel vapor from the liquid fuel received by the injector and to conform to the shape of the plug and the fuel return passage.

Abstract: Improved plotting and printing apparatus has a writing surface for supporting a printing medium and which has an opening for exposing the underside of the medium. A transparent plate is mounted to the supporting surface so as to permit placement onto that surface of a printing medium such as a plural leaf form set whose area is larger than that of the plate so that one portion of the medium extends across the opening under the plate and can be printed on by a printer positioned under the surface opposite the opening, while another portion of the medium lies on the surface beyond the plate so that it can be written on from above the surface.

Abstract: It is a problem extracting the photosignal component from detector output, to the exclusion of pedestal bias response. To overcome this, a time varying bias signal is applied to each element of the detector. The duration of the time varying bias signal, or if a periodic signal, the signal period, is chosen as long compared to photocarrier lifetime and the signal amplitude is large enough to range over a non-linear portion of the responsivity characteristic of each element. The bias signal contains a d.c. component so that the bias signal ranges about a point of operation--a point of asymmetry lying on the responsivity characteristic. The photosignal component of the output signal may be removed by time averaging or by harmonic separation. Alternatively the bias signal may be modulated, and the photosignal component extracted by detection of demodulated signal.

Abstract: The heat treatment of aluminium alloys having a lithium content in excess of 0.5% is carried out in an atmosphere of carbon dioxide and water vapor, the partial pressure of water vapor being at least 4 torr and more usually 10-50 torr.

Abstract: Aluminum alloys containing lithium and copper and/or magnesium as principal alloying constituents are homogenized at 530.degree. C. or above to take into solution as-cast intermetallic phases which do not fully go into solution at conventional homogenization temperatures for this class of alloy. Preferably the alloy ingots are slowly heated at rates not exceeding 50.degree. C./hour up to a final homogenization temperature in the region of 550.degree.-560.degree. C. and are then allowed to cool without prolonged holding at temperature.

Abstract: Corrosion caused by gasohol or alcohol motor fuels is inhibited by the addition of a corrosion inhibiting amount of the combination of (A) a polymer of a C.sub.18 polyunsaturated aliphatic monocarboxylic acid (e.g. linoleic dimer and/or trimer) and (B) the reaction product of (i) a polyalkylene polyamine, (ii) a C.sub.18 monounsaturated aliphatic monocarboxylic acid (e.g. oleic acid), and (iii) an alkenyl succinic anhydride, in which the alkenyl group contains 8 to 30 carbon atoms.

Abstract: A fuel rail assembly for a V engine has a pair of fuel rails connected by crossover and discharge conduits. The crossover and discharge conduits are secured to the fuel rails in a manner which permits relative motion between the fuel rails without loss of fuel from the fuel rail-conduit intersection.

Abstract: A fuel supply member surrounds the perimeter of a pressure regulator diaphragm and sealingly engages the pressure regulator base and the pressure regulator cover to completely enclose the perimeter of the diaphragm in the fuel supply system.

Abstract: A valve for controlling purging fluid for marine speedometer lines includes a valve body. The valve body has a bore extending in a longitudinal direction therein, a speedometer port, a pressurized fluid supply port and an impact tube port. The ports are spaced apart in the longitudinal direction and communicate with the bore. A valve spool is slidably received within the bore for reciprocation between first and second positions in the bore. The spool has three spaced apart seals between the bore and the spool. There is a first passageway between the first and second seals and between the spool and the bore. The speedometer port and the impact tube port communicate through the passageway, the pressurized fluid supply port is isolated from the speedometer port and the impact tube port, and the third seal and first seal are on opposite sides of the pressurized fluid supply port, in the first position of the spool.

Abstract: A clip received in a groove about an engine fuel injector and rotated into grooves in a fuel rail body secures the injector in its socket in the fuel rail body.

Abstract: To measure the mass air flow in the induction passage of an engine, a small venturi located centrally in the passage serves as an air sampling tube. A slotted aperture in the wall of the tube at the venturi throat allows a hot film sensor to extend into the venturi throat from a support such as a printed circuit board mounted outside the venturi. The film sensor is in the form of a loop supported only at its ends on the support. The loop comprises a substrate of flexible insulating film material coated with an electrical resistance layer forming the active element of the sensor. The loop has a major dimension extending arcuately and transversely of the air flow through the venturi and a minor dimension extending parallel to the air flow.

Abstract: The fuel supplied to an injector is maintained at substantially constant pressure by a fuel pressure regulator which balances the fuel pressure with the bias of a coil spring. To establish the desired pressure, a spring housing is deformed to move a spring seat to the position which causes the spring to exert the required bias. The spring seat is connected to the diaphragm by a tie rod which simplifies assembly of the pressure regulator. Slits in the outer portion of the diaphragm allow separation of the diaphragm along an arcuate line while maintaining a continuous peripheral seal about the pressure regulator.

Abstract: A control damper for controlling the flow of air or other gaseous fluid through a duct, comprising a line of blades each of which is so supported for rotation in a surrounding frame that the blades are swingable about parallel axes to open or close an opening in the frame and to be movable at will to intermediate positions between their fully-open and fully-closed positions, in which the blades are of aerofoil shape.

Abstract: A shut-off damper comprising a line of blades which are supported in a surrounding frame for rotary motion about substantially parallel axes to open or close an opening in the frame, and springy sealing strips each provided with a lining or cover of synthetic rubber or other resilient material so that the end portions of the blades make sealing contact with the said linings or covers to reduce or prevent the leakage of fluid past the blades when they are in their fully-closed positions.

Abstract: A shut-off damper having blades of a generally streamlined shape with the trailing edges of the blades comprising fluid sealing means extending along those edges so that a seal is formed between adjacent blades when the blades are in their closed positions.

Abstract: A combination smoke and fire shield damper comprising a line of blades each of which is so supported for rotation in a surrounding frame that the blades are swingable about parallel axes to open or close an opening in the frame, in which the blades are provided with "opened-out" trailing edges so that the leading edge of each blade interlocks with the trailing edge of an adjacent blade when the blades are in their fully-closed positions.