Abstract: A pressure difference detector for detecting a pressure difference between atmospheric pressure and a fuel system vapor pressure to be measured, includes a pressure dampening member 17a for dampening the flow of atmospheric air between an introducing inlet 11a and a reference pressure chamber 12 to limit the air flow rate to a value smaller than a leakage flow rate between the chamber and a fuel system vapor pressure introducing inlet 11b due to a leaking 0 ring seal. This prevents an erroneous judgment that the fuel system is leaking.

Abstract: A pressure sensor comprising a passage for introducing a pressurized medium; a member surrounding the passage; first and second sealants disposed between the member and the passage for preventing the pressurized medium from leaking to the outside through a clearance between the member and the passage; and a pressure sensing element communicating with the passage; the first sealant being made of a first material which is difficult to be deformed by the pressurized medium; the second sealant being made of a second material having a sealing effect against temperature change; the first and second sealants being arranged in series between the passage and the member surrounding the passage.

Abstract: A direct fuel injection internal combustion engine comprises an auxiliary piston in an auxiliary cylinder for modulating sharp pressure rises in the combustion chamber. The main piston has a cavity into which injected fuel is directed. The fuel injection stream and the output from the auxiliary cylinder intersect.

Abstract: An injection nozzle comprises: a nozzle body arranged in a case in such a manner that the nozzle body is movable along the axis thereof; an injection outlet for jetting fuel when said nozzle body is moved along the axis to open the injection outlet; at least one fluid jetting outlet which is communicated through a fluid supply passage to a fluid supply device, for jetting fluid towards the fuel thus jetted; and a control unit having at least one stationary opening and a movable opening to supply fluid to the fluid jetting outlet when the stationary and movable openings are aligned with each other, to thereby control fluid jetted from the fluid jetting outlet. The fluid jetted from the fluid jetting outlet is applied to the fuel jetted by the injection outlet, to cause the kinetic energy of the fluid to shear the fuel and to thereby improve the atomization of fuel, and to control a fuel scattering direction and a fuel spray pattern.

Abstract: Information storage mediums such as video discs and digital audio discs are fabricated by extruding a mass of electrically conductive synthetic resin into a block assembly composed of a pair of separable blocks in which the mass is molded into a cake that is then carried by one of the blocks as separated into a press in which the cake is pressed into an information storage medium or disc blank. The blank is transferred into a trimmer for trimming an overflow off the disc blank as an annular scrap, which is in turn chopped by a chopper into pieces for reuse. a disc from which the scrap has been removed is fed to a hot stamping machine in which an identification foil piece is attached with heat to the disc. The disc with the foil piece stamped thereon is punched to form a central hole by a punching machine.

Abstract: Information storage mediums such as video discs and digital audio discs are fabricated by extruding a mass of electrically conductive synthetic resin into a block assembly composed of a pair of separable blocks in which the mass is molded into a cake that is then carried by one of the blocks as separated into a press in which the cake is pressed into an information storage medium or disc blank. The blank is transferred into a trimmer for trimming an overflow off the disc blank as an annular scrap, which is in turn chopped by a chopper into pieces for reuse. A disc from which the scrap has been removed is fed to a hot stamping machine in which an identification foil piece is attached with heat to the disc. The disc with the foil piece stamped thereon is punched to form a central hole by a punching machine.

Abstract: An automobile repair estimate issuing device having a part data file made up of a first file for storing part data other than name data and a second file for storing the name data. The data file is stored in a memory having a reduced memory capacity. Input and output devices, a central processing device, the memory and a printing devices are reduced in size and weight thereby to provide a portable type automobile repair estimate issuing device which can issue a repair estimate at an automobile repairing place on the spot.