摘要:
Fuel injection equipment is provided which realizes characteristics of fuel injection proper for all over the operation range of an engine, can further reduce nitrogen oxide(NOx) emission, and is high in mechanical durability. The fuel injection equipment for an internal combustion engine comprises an injection pump having a plunger part and a fuel passage equipped with a main electromagnetic valve, a fuel supply part for supplying the fuel to the fuel injection pump, a fuel injection pipe for sending the fuel to an injection nozzle part, and a secondary electromagnetic valve attached to an overflow pipe for returning to said fuel supply part the redundant fuel not to be injected from said unit injector, wherein an orifice is attached to said overflow pipe.
摘要:
An electromagnetic controlled fuel injection apparatus can be provided in which a housing assembly with two sets each consisting of a solenoid device and an open/close valve device being fixed directly to a housing is fixed to a plunger unit to decrease the length of the fuel passages between the open/close valve devices and a plunger room in order to increase the speed of injection response in two-stage fuel injection for reducing NOx emission while maintaining engine performance and to facilitate mounting of the apparatus on constricted space of an engine.
摘要:
An accumulator fuel injection system can be provided with which fuel pressure pulsation in the common rail caused by fuel injection can be suppressed by extremely simple means with a low cost system without using an electronic control device and so on. The accumulator fuel injection system having a common rail for supplying high pressure fuel accumulated in an accumulating room of said common rail through high pressure fuel outlets provided equally spaced along the longitudinal direction of said common rail to the fuel injection valve of each cylinder at predetermined injection timing is composed such that the distance from an end of the accumulating room where a pressure wave generated therein is reflected from to a high pressure fuel outlet adjacent to said end (L1 or L2) is determined in a range of (N+0.25) times to (N+0.375) times the pitch length L of said equally spaced high pressure fuel outlets each corresponding to each cylinder, N being a nonnegative integer.
摘要:
The invention provides an electromagnetic controlled fuel injection apparatus with a poppet valve of which the beginning and end of fuel injection is controlled by the reciprocation of the poppet valve, in which inertia force and friction force arising from the reciprocating motion of the poppet valve are utilized effectively to suppress the bounce of the poppet valve. The injection apparatus is composed such that the poppet valve has a sealed inside space, and a plurality of mass objects are received in the inside space so that the mass objects can move axially while contacting with each other in the inside space due to inertia force generated by the reciprocating motion of the poppet valve.
摘要:
An intravascular obstruction removing wire includes an elongate wire body, at least two non-branched wire portions having distal ends and proximal ends which are connected to a distal end of the wire main body, and a plurality of filament portions extending across the wire portions. The non-branched wire portions and the filament portions form a trapping portion. The trapping portion is deformable from a large-diameter state in which the non-branched portions branch to the distal end of the wire body forward in different directions and the filament portions are separated from each other, so that a space surrounded by the non-branched wire portions and the filament portions is formed to trap therein an obstruction in a blood vessel, to a small-diameter state in which the non-branched wire portions are positioned so that a distance between the wire portions is smaller than that of the wire portions in the large-diameter state.
摘要:
A fuel injection system for an internal combustion engine is provided with a lubricity improver supply means for adding a lubricity improver to low-viscosity fuel supplied to a fuel injection apparatus of the engine, and a controller for controlling said lubricity improver supply means so that the amount of the lubricity improver added to fuel at the inlet too the fuel injection apparatus is increased as engine rotation speed, engine load, or injection pressure is increased. With the system, wear or sticking of the plunger can be prevented even when low-viscosity fuel is used by providing a means for improving lubrication condition to secure necessary lubrication condition for the sliding part in accordance with engine operation conditions, fuel temperature and viscosity.
摘要:
Epoxy resin compositions comprising (a) an epoxy resin, (b) a latent curing agent with curing power at 100° C. or below and (c) an aromatic amine-based curing agent and/or an alicyclic amine-based curing agent, which are curable in two stages, or epoxy resin compositions further comprising (d) a curing accelerator, as well as a prepregs comprising reinforcing fiber materials impregnated with the epoxy resin compositions. The compositions give die-releasable cured products by primary curing at low temperature, give highly heat-resistant cured products by secondary curing, and exhibit satisfactory stability at room temperature.
摘要:
An image analyzing apparatus includes an image data memory for storing image data, a display for displaying an image based on image data selected from the image data stored in the image data memory and processed in a predetermined manner, a graphic data memory for storing graphic data corresponding to a plurality of patterns to be displayed on the display, a quantitative processing section for quantitatively processing image data corresponding to the images contained in regions of interest defined by the patterns, a quantitative data memory for storing quantitative data produced by the quantitative processing section, and a background management section for producing and storing background data relating to background values corresponding to noise components for each of the patterns. According to the thus constituted image analyzing apparatus, it is possible to accurately and smoothly quantitatively process and analyze an image contained in a region of interest defined by a pattern.
摘要:
A controller for electric vehicles comprising a vector control inverter for controlling motors, which drive wheels of the electric vehicles, by dividing the primary current of the motors into an exciting current component and a torque current component, and controlling respective of the current components based on a respectively designated command, characterized in further comprising a dectector for detecting a wheel velocity (including a rotor frequency of the motor proportional to the wheel velocity), a detector for detecting slipping and skidding of the wheel based on a differential value (a changing rate with time) of the detected wheel velocity, a dectector for detecting re-adhesion of the wheel based on the differential value and a twice differential value of the detected wheel velocity, and an adjuster for adjusting the designated command for the torque current component in response to the detectors.
摘要:
A fuel additive which comprises an amide compound of the formula ##STR1## wherein R.sup.1 is hydrogen or a C.sub.1 -C.sub.30 hydrocarbon group, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each are selected from the group consisting of hydrogen, a C.sub.1 -C.sub.10 hydrocarbon group and a group of formula (II), provided that at least one of R.sup.2, R.sup.3, R.sup.4 and R.sup.5 group of formula (II) R.sup.6 is a C.sub.2 -C.sub.6 alkylene group, R.sup.7 is a C.sub.1 -C.sub.6 alkylene group, a is an integer of 1-100, b is an integer of 0-100, the sum of a and b being equal to 1-200, c is an integer of 1-3, d is an integer of 0-2, the sum of c and d being equal to 3, and X is selected from the group consisting of hydrogen, a C.sub.1 -C.sub.30 hydrocarbon group, a group of formula (III), and a group of formula (IV), wherein formulas (II), (III) and (IV) are defined in the disclosure.