Abstract:
Automatic fluid sampling and monitoring apparatus provided as a unitary structure (1, 2), and capable of collecting samples at selected intervals, monitoring the level of a condition of the fluid at selected intervals, and collecting (20) and storing sampling and fluid condition data for later retrieval. Sampling operations may be controlled on the basis of time and/or levels of condition being monitored (20). Where the apparatus also incorporates an internal flow measuring assembly, or is connected with an external flow meter, sampling operations may also be controlled on the basis of flow rate. The apparatus includes a self-contained microprocessor control section (15) for automatically controlling sampling operations, calculating fluid condition levels on the basis of signals from a sensor, and storing data relating to sample collection and the condition. Stored data can be called up on a display (18) of the apparatus, or transferred (16) via a portable transfer unit to an external output device, such as a printer, for producing a hard copy of the data.
Abstract:
Bei einem Kraftstoffsystem (1), insbesondere zum Einspritzen von Kraftstoff in den Brennraum (3) einer Brennkraftmaschine (4), mit einem Kraftstofftank (2) und weiteren Komponenten (5, 6, 7, 8, 8", 9, 10, 12) ist erfindungsgemäß vorgesehen, dass der Kraftstofftank (2) und/oder die, insbesondere im Kraftstofftank (2) vorgesehenen, Komponenten (8, 8", 9, 10) zumindest in denjenigen Bereichen, in denen sie mit Kraftstoff in Berührung kommen, aus einem für den Kraftstoff nicht katalytisch wirkenden Material gebildet sind.
Abstract:
For measuring an interface between two fluids, a device (10, 75, 90) having an electrical circuit comprising transmitting means, a detector, a first antenna (14, 18, 78, 82, 92) and a second electrically grounded antenna (15, 18, 79, 83, 93), the transmitting means being arranged to transmit electrical impulses between the first and second antennas through one of the two fluids so as to be absorbed thereby, and the detector being arranged to detect a change in either an impedance or a rate of absorption of energy which occurs at the interface. The device includes a housing (11, 91) for placing in the fluids so as to contact the interface along a periphery of the housing towards a first end thereof, the first antenna (14, 18, 78, 82, 92) projects from the housing at said periphery, and the electrical circuit includes a coupling means (28) for coupling thereto a remote monitoring means whereby the interface may be measured remotely. Also disclosed are several preferred systems and methods employing such a device.
Abstract:
Vapor-emitting devices according to various embodiments of the invention include active end of use indicators to warn users that it is nearing the time and/or time to replace the vapor-emitting device or a refill for the device. Some embodiments of the vapor-emitting devices include intrusive actuation of the end of use indicator, while other embodiments include non-intrusive actuation of the end of use indicator. The indicators may be visual and/or auditory cues for notifying users it is nearing the time and/or time to replace the vapor-emitting device or a refill for the device.
Abstract:
A continuous manufacturing method for hygroscopic resin powder capable of continuously manufacturing, at a high productivity, surface−reformed hygroscopic resin powder in the state of narrow grain size distribution and high physical properties and a powder level detector desirably used for the method, the method comprising a polymerization process, a drying process, a pulverizing process, a classifying process, a surface reforming process, and transfer processes for linking these processes with each other, the transfer processes further comprising at least two hoppers for storing the hygroscopic resin powder, the powder level detector desirably used for the method comprising a float suspended with a suspending wire.
Abstract:
The invention encompasses an electromechanical fill level measurement unit, comprising a float or displacement element which is connected by means of a wire at least to an outer drum such that the wire can be unwound, an outer drum with an outer magnet ring, an inner drum with an inner magnet ring, and electromagnetic measurement elements which determine magnetic field displacement between the inner and outer magnet rings and output a measurement value, a measurement shaft to which the inner drum is mechanically fixedly connected; a servo motor is provided which has a drive shaft which is coupled via a gearing to the measurement shaft, which servo motor imparts a follow-up movement to the measurement shaft as a function of a control signal determined from the differential value of the measurement elements, such that, as a result of the relative movement between the outer and inner drum generated by a change in the liquid level to be measured, the differential value is returned to zero and, from a follow-up movement, the present fill level measurement value is determined. The invention provides that sensor electronics are arranged on the measurement shaft within the inner drum, and that a radial rotary transformer is formed on the measurement shaft, which rotary transformer transmits at least the control signals from the sensor electronics to the main electronics and supplies at least the sensor electronics with the required energy.
Abstract:
A level gauge for a tank, of the driven sensor type, comprises essentially: a drum (200) around which is wound a thread on the end of which is suspended a driven level sensor; a reversible servomotor (150) driving the said drum; means (350, 351) for driving the drum in both directions; means for recording drum rotation; means (310, 301, 302) for detecting a variation in the force in the thread, said force being directly related to the relative position of the sensor with respect to the level being measured. According to the invention, the said means for detecting a variation in the force in the thread comprise an element (310) rotatably mounted about a horizontal axis. Its oscillation is limited by damping means (305 to 311) and movement of the element (310) enables the force exerted on the thread to be measured.
Abstract:
The invention relates to a method for evaluating an effective component content (C) of a reducing agent for engine exhaust gas processing arranged in a container (205) in which a heat transfer provision arrangement (240) is provided, comprising the steps of: - determining (s410; s420) a prevailing volume (V) and temperature (T1) of said reducing agent in said container (205); - determining (s430) a prevailing temperature (T2) of said heat transfer provision arrangement (240); - determining (s440) a prevailing temperature (T3) of a medium surrounding said container (205); - for a predetermined time period, determining (s450) a mean temperature change rate (Tprim) for said reducing agent; and - determining (s460) said effective component content (C) of said reducing agent on the basis of the above determined parameters.