摘要:
A fuel feed system for an internal combustion engine includes a fuel tank for accumulating fuel, a fuel/air switchable pump for sucking and discharging accumulated fuel and air outside the fuel tank, a first device that allows accumulated fuel to be discharged to the engine, a second device that allows outside air to be sucked into the fuel tank, and an ECU for controlling the switchable pump.
摘要:
A liquid remaining-amount detecting system includes a displacement transmitting part for transmitting displacement of a float to a rotation-angle sensor and including a bracket mounted to the bottom of a tank, an arm having a base end mounted to the bracket and a front end mounted to the float, and a link mechanism for coupling the rotation-angle sensor and the base end of the arm. The link mechanism serves to cancel displacement of the float resulting from vertical displacement of the bottom of the tank.
摘要:
In a gas-tightness diagnosing apparatus for a fuel tank with an evaporative emission purge system, the gas-tightness diagnosing apparatus includes a pressurizing device, such as an air pump, which is applied to the gas-tightness diagnosing operation. The air pump itself is mounted in the fuel tank. In this construction, the layout space for the air pump can be easily allocated by applying space of the fuel tank. The whole assembly of the apparatus can be also formed compact and easily mounted on vehicles.
摘要:
A fuel supply system for a vehicle, the fuel supply system being comprised of a fuel tank, a fuel pump installed in the fuel tank, a fuel level detection unit which is comprised of a float and a sensor member which detects a vertical displacement of the float, and a pressing member which presses with elasticity the sensor member against the inside bottom of the fuel tank.
摘要:
A drilled hole end adjusting arrangement for a drilling machine or the like mounted on a boom structure in which the positions of the drilling machine are located such that ends of drilled holes are in a predetermined plane by positioning the boom structure in a rectangular coordinate plane established immediately in front of a working face. The depths to which the holes are drilled are caused to be such that the ends are in a plane parallel to the rectangular coordinate plane by supplying numerical instructions to the boom structure so that the positioning is carried out with high accuracy and the controls for the boom structure can be quickly programmed.
摘要:
To provide a fuel sealing structure capable of preventing the leakage of not only liquid fuel but also gasified fuel, an annular packing 30 is interposed between an annular sealing surface 15 on an opening part 11 of a container 20 and an annular sealing surface 25 of a closure 20. The distance between the second regions 15b, 25b of the sealing surfaces 15, 25 is shorter than that between the first regions 15a, 25a. The packing 30 includes a first sealing part 31 sandwiched between the first regions 15a,25a and a second sealing part 32 sandwiched between the 15b, 25b. The second sealing part 32 is smaller in thickness than the first sealing part 31 and the difference of the thicknesses is larger than the difference of distances between the above-mentioned regions. With the closure 20 attached, the compression ratio of the second sealing part 32 is smaller than that of the first sealing part 31.
摘要:
A rock drill having a tunnel profile control system comprising a boom assembly, a converting unit for converting the position of one of positioning points on an orthogonal coordinate system representative of the transverse section of a tunnel to be driven, into a respective value on a boom coordinate system, a positioning control for positioning the boom means according to a value from the converter unit, an ultrasonic distance measuring instrument mounted on the boom assembly for determining the distance between the position point and a point on the peripheral wall defining the tunnel, and an arithmetic unit which utilizes the distance measured between the positioning point and the point on the peripheral wall defining the tunnel, the direction of travel of ultrasonic waves, and the value of the positioning point to calculate, in terms of a value in the orthogonal coordinate system, a value of a measuring point on the transverse section of the tunnel.
摘要:
A fuel supply unit, includes: 1) a fuel pump including; i) a motor section, and ii) a pump section driven by the motor section, the pump section pumping a fuel; and 2) a fuel tank provided with; i) a including; a) an inner section for housing therein one of the following: α) the motor section, and β) a first part of the motor section, b) an outer section provided with one of the following: α) the pump section, with the motor section housed in the inner section, and β) the pump section and a second part of the motor section, with the first part of the motor section housed in the inner section. The inner section of the motor housing bulkhead is substantially sealably separated from the outer section of the motor housing bulkhead, in such a manner as to bring about an oil tightness.
摘要:
A positioning arrangement for a drilling machine or the like in which the desired position of a bit of the drilling machine mounted on a boom structure is indicated based on rectangular coordinates for facilitation of automatic positioning programming for the boom structure, with the position of a particular boom end being designated by numerical values for quick and accurate positioning of the boom structure at the required positions.
摘要:
A centering arrangement for a drilling machine or the like mounted on a boom or jib on a truck or the like for drilling rock, for example, and in which, for centering the drilling machine, the machine is moved from a reference point on a drilling pattern plane to a reference point on a working plane, and the amount of shifting for achieving the centering is supplied to a unit for adjusting the working distance and direction values for the desired drilling point in the drilling pattern plane to achieve the working distance and direction values of the actual drilling point on the working plane. These are used for moving the boom structure of the drilling machine to the actual drilling point for quick and accurate.