Abstract:
Systems and methods are provided for remotely monitoring liquid lubricant levels for pump equipment. A system includes a reservoir to store lubricant and a lubrication gland to expose a shaft seal of the pump equipment to the lubricant. A feed line and a return line circulate the lubricant between the reservoir and the lubrication gland. A level sensor is configured to measure a fluid level in the reservoir. The level sensor uses a communication interface to transmit fluid level data a monitoring device mounted to the pump equipment. The monitoring device is configured to compare the fluid level data against stored alert thresholds and send, to a provider network, an alert signal when the fluid level data is below an alert threshold. If the fluid level data is not below an alert threshold, the monitoring device stores the fluid level data for periodic reporting.
Abstract:
The lubrication system (150) includes a drive fluid valve member (156; 224) and a detune valve member (166; 260). The drive fluid valve member (156; 224) is movable from a first to a second position in response to drive fluid pressure to reduce the volume of a variable volume lubricant charge chamber (230). The detune valve member (166; 260) is movable from a first to a second position in response to lubricant pressure within the lubricant charge chamber (230), and is adapted to permit fluid communication between inlet and fluid bypass passages (146, 164) in its first position and to disengage the fluid connection in its second position.
Abstract:
A rotating system (1), such as a gear system or a bearing supporting system, for a wind turbine is disclosed. The rotating system (1) comprises a housing (2) arranged to substantially enclose the rotating system (1), said housing (2) defining a lubricant drain (5) towards the exterior of the housing (2), and a rotating part (3) accommodated in an interior part of the housing (2) in a manner which allows rotational movements of the rotating part (3) relative to the housing (2), and in such a manner that lubricant can be contained between the housing (2) and the rotating part (3). The housing (2) and/or the rotating part (3) is/are arranged to provide a pumping action forcing lubricant arranged in an interior part of the housing (2) towards the lubricant drain (5) during rotational movements of the rotating part (3) relative to the housing (2). Excess lubricant is quickly and efficiently removed from the rotating part (3) and led to the lubricant drain (5). Thereby a slip stream of lubricant is reduced. Accordingly, the friction occurring in the rotating system (1) is considerably reduced, and the efficiency of the rotating system (1) is therefore increased. Simultaneously, the outer dimensions of the rotating system (1) can be minimised because it is not necessary to generally increase the distance between the rotating part (3) and the housing (2) in order to avoid a lubricant slip stream. Furthermore, a method for operating such a rotating system (1) is disclosed.
Abstract:
A lubricant supply tube for attachment to a drive shaft of a sealed reciprocating compressor comprising an elongated first portion adapted for extending downwardly from the drive shaft and inclined with respect to a rotational axis of the drive shaft for immersion into a lubricant in a lubricant sump of the compressor, and terminating in a substantially elliptical inlet orifice defining a first plane; and wherein the first plane is inclined with respect to a second plane extending perpendicular to a longitudinal axis of the elongated first portion.
Abstract:
A positive-displacement reciprocating compressor comprising a "non-conventional" crank mechanism which eliminates the amount of frictional force between the wall of the piston and the wall of the cylinder, whose characteristic feature is to have a planet (20) made of sintered material, with self-lubrication properties, allowing to eliminate bushings or similar additional elements. An economical and structurally simple lubrication system, which preferably comprises a classical link rod/crank mechanism, utilises the mechanical energy provided by the drive shaft of the compressor and sends the lubricant (oil) in a precise manner to the surfaces that need to be lubricated. This oil is easily retained by the very small grains of the sintered material. Moreover, a valve system based on a single plate simplifies the structure of the cylinder unit (30).
Abstract:
The invention relates to a hand-tool, in particular, a right-angle grinder comprising a housing (11) that has a motor (15) and a gear (16) with a crown wheel (18) for driving a working spindle (19), by means of which a tool (28) can be driven. The gear (16) comprises a return device (40) for the lubricant of the gear (16), in particular the grease thereof. Said device has at least one transport element (41), which rotates with the crown wheel (18), said element having an oblique front face (43) for returning the lubricant centrifugally and creating a lubricant circuit in the vicinity of the teeth of the crown wheel (18).
Abstract:
The invention refers to a device for the supply of lubrication oil for centrifugal separator. The device includes a spindle (3), which is arranged to carry a centrifuge rotor of said centrifugal separator and is rotatably journalled in at least one bearing member (5) about a centre axis (Z), and an oil container (8), which is arranged to contain a quantity of oil. The spindle extends from the centrifuge rotor to the oil container in such a manner that at least an end portion of the spindle is located in said quantity of oil. The spindle forms a longitudinal channel (29), which has an orifice in said end portion and which is arranged to transport an oil flow through the channel (29). The channel includes a distribution member (31), which is arranged to divide a first selected amount of said oil flow for further transport to said bearing member (5) and to convey the remaining amount of said oil flow out of the channel (29) for being returned to the oil container (8).
Abstract:
A rotary machine (10) comprises: - an internal body (11) which extends about a main rotation axis (X) of the rotary machine and which is fixed with respect thereto, - an external body (12) which is rotatably supported outside internal body (11) and which is rotated about the main rotation axis (X), - a lubrication system (18) which is provided to lubricate at least one component (15, 16, 17) of the internal body or the external body. The lubrication system (18) comprises: - an inlet conduit (19) for a lubricant which is formed in the internal body (11) to conduct the lubricant inside the rotary machine (10), - at least one distribution conduit (20) for the lubricant, a collection chamber (21) for the lubricant which is defined between the external body (12) and the internal body (11) and - an outlet conduit (22) which communicates with the collection chamber (21) and which is formed in the internal body (11) to conduct the lubricant outside the rotary machine (10).
Abstract:
Die Erfindung betrifft eine Antriebseinrichtung für eine Schlitzwandfräse (1), mit einem Hydraulikmotor (8), einem Getriebe (9), an das ausgangsseitig zumindest ein Fräsrad (3) der Schlitzwandfräse anschließbar ist, sowie einer Antriebswelle (12), die den Hydraulikmotor mit dem Getriebe verbindet, wobei die Antriebswelle durch zumindest ein Antriebswellenlager (25) gelagert ist, das zwischen dem Hydraulikmotor und dem Getriebe angeordnet ist, wobei das Antriebswellenlager einen Schmiermittelzulauf (14) aufweist, der an einen Leckage-Ablauf des Hydraulikmotors und/oder den Hydraulikkreis zum Betreiben des Hydraulikmotors angeschlossen und zum Schmieren des Antriebswellenlagers mit Hydrauliköl ausgebildet ist.