摘要:
Enhanced tools and techniques are disclosed for performing post-lubrication fluid operations and other fluid maintenance operations on the fluid system of a machine. A control module may be provided for initiating post-lubrication fluid operations for regulating temperature of engine components.
摘要:
Gegenstand der Erfindung ist ein Vakuumpumpstand mit einem Pumpenaggregat (2) mit einer Pumpe (2'), mit einer Steuereinrichtung (3) am Pumpenaggregat (2) zur Steuerung von dessen Betriebsablauf und mit einer Bedieneinheit (5) mit Bedien- und Anzeigeelementen (6, 7), wobei die Steuereinrichtung (3) und die Bedieneinheit (5) über jeweilige Sende- und/oder Empfangseinrichtungen (8, 9) steuerungstechnisch drahtlos miteinander verbindbar sind. Dieser ist dadurch gekennzeichnet, dass die Bedieneinheit (5) vom Pumpenaggregat (2) räumlich trennbar und transportabel ausgebildet und mit einem wiederaufladbaren Akkumulator (10) und einem Akku-Ladeanschluss (11) versehen ist, dass am Pumpenaggregat (2) eine Andockstelle (12) vorgesehen ist, an der die Bedieneinheit (5) vorübergehend anbringbar ist, dass die Andockstelle (12) am Pumpenaggregat (2) und der Akku-Ladeanschluss (11) an der Bedieneinheit (5) als zueinander korrespondierende kontaktlose Energieversorgungs-Schnittstellen ausgebildet sind und dass bei an der Andockstelle (12) angebrachter Bedieneinheit (5) über die miteinander zusammenwirkenden kontaktlosen Energieversorgungs-Schnittstellen elektrische Energie für den Akkumulator (10) von dem Pumpenaggregat (2) an die Bedieneinheit (5) übertragbar ist.
摘要:
A method for operating a work attachment of a work machine with a single input is disclosed. In one step of the method, an indication is received that operation of a work circuit in a hydraulic system is to be activated. Upon this indication, the hydraulic system may be placed in a work circuit primary mode in which a pump is placed in fluid communication with the work circuit. The method also includes receiving a lifting lever position and correlating the lifting lever position to a required lifting speed. The method further includes automatically controlling at least two of an engine speed, a pump displacement, and a lifting control valve to satisfy the required lifting speed. Additionally, the operation of the engine speed, pump displacement and lifting control valve may be sequentially staged in pre-defined zones of operation.
摘要:
A peristaltic pump (1) for pumping a liquid comprises a flexible tube (2) for guiding the liquid to be pumped, a compression means (5) being actuatable for compressing the flexible tube (2), an upstream valve means (3) arranged in an upstream direction with respect to the compression means (5) and being actuatable to selectively open or close the flexible tube (2) upstream of the compression means (5), and a downstream valve means (4) arranged in a downstream direction with respect to the compression means (5) and being actuatable to selectively open or close the flexible tube (2) downstream of the compression means (5). A drive shaft (6) is provided which is rotatable for periodically actuating the compression means (5), the upstream valve means (3) and the downstream valve means (4). In addition, the peristaltic pump comprises a position detection means (8) for detecting the rotational position of the drive shaft (6) during actuation of the compression means (5), the upstream valve means (3) and the downstream valve means (4), a pressure sensor (7) being arranged between the upstream valve means (3) and the downstream valve means (4) for measuring a pressure signal (P) in the flexible tube (2) at a location between the upstream valve means (3) and the downstream valve means (4), and a control means (9) to control the operation of the peristaltic pump ( 1), the control means (9) being operative to detect a fault condition during the operation of the peristaltic pump (1) from a measured pressure signal (P). In a peristaltic pump ( 1) of this kind the control means (9), for detecting the fault condition, is operative to detect a peak (P1, P1') of the pressure signal (P) in a predefined interval (II) during rotation of the drive shaft (6) and to determine whether the fault condition is present or not by taking the signal value at the peak (P1, P1') and the location (T1, T1') of the peak (P1, P1') in the predefined interval (II) into account. In this way a peristaltic pump is provided allowing for an easy and reliable detection of a fault condition, in particular for detecting an empty-bag condition indicating that a bag supplying liquid to the flexible tube of the peristaltic pump is empty.
摘要:
Disclosed is an infusion pump which may include a native pumping mechanism to drive fluids through a functionally associated conduit, at least one native sensor to sense a physical characteristic of the fluid within the conduit and computing circuitry having a decalibration test mode to determine whether the infusion pump is decalibrated. The computing circuitry may be adapted to receive output from at least one native sensor during the decalibration test mode.
摘要:
An object is to prevent a large quantity of unburned HC components from being released to the outside until a diesel oxidation catalyst reaches an activation temperature after early post-injection. In the present invention, by reducing a throttle opening of a variable throttle mechanism 77 provided in an oil passage 72, or increasing a set value of an oil pressure level detected in an oil pressure sensor 78 provided on the downstream side of the variable throttle mechanism 77, power of an oil circulation pump 74 is increased before a start point t 1 of the early post-injection. With this arrangement, by increasing a load of a diesel engine 10 to increase a temperature rise gradient of exhaust gas at the stage of increasing the temperature of the diesel oxidation catalyst, the unburned HC component released until the diesel oxidation catalyst 50 reaches the activation temperature is reduced.
摘要:
The invention relates to a device (1) for monitoring sample-collection carried out using a piston pump (3, 8) such as a syringe, characterised in that said device includes a pressure sensor (11) close to the suction and/or delivery opening (6). Said device is in particular suited for use in an analysis automaton, in particular for analysing a blood sample. Such a sensor guarantees that the liquid to be analysed is properly sucked up, in particular that no air is sucked up and that neither the suction or delivery sides are blocked.