Nacka, Sweden
Nacka, Sweden

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Device for compressing and expanding gases, characterised in that the device (1) comprises an apparatus (2) that can be driven in two directions, whereby in one direction the apparatus (2) operates to compress a gas and in the other direction the apparatus (2) operates to expand a gas.


Patent
Atlas Copco | Date: 2017-03-15

Method for cool drying gas by guiding gas through the secondary section (9) of a heat exchanger (2) whose primary section forms the evaporator (3) of a closed cooling circuit (4) in which a coolant can circulate by means of a compressor (5) that is followed by a condenser (6) and expansion means (7) through which the coolant can circulate, whereby use is made of an air-cooled condenser (6) with a frequency controlled fan (19), and the method comprises the step of controlling the speed of the aforementioned fan (19) so that the condenser pressure (pc) is kept equal to a target value.


Patent
Atlas Copco | Date: 2017-04-05

A pneumatic torque impulse delivering power tool (10) with an automatic power shut-off mechanism, the power tool (10) comprising a pneumatic motor (11); a drive member (16) which is driven to rotate by said pneumatic motor (11); an air supply channel (14) for providing the motor (11) with pressurized air; a shut-off valve (15) arranged in said air supply channel; and a valve control device (17) arranged to shut said shut-off valve (15) and stop the air flow to the pneumatic motor (11) when the drive member (16) is exposed to a retardation magnitude above a certain threshold level. The valve control device (17) comprises an inertia responsive member (18), which is arranged to rotate along with the drive member (16), and which is pivotally arranged with respect to the drive member (16) between an initial position in which it does not interfere with the shut-off valve (15) and a shut-off position in which it allows the shut-off valve (15) to close. The valve control device (17) further comprises an air damped movement restrictor (29) arranged to counteract the movement of the inertia responsive member (18) towards its shut-off position, such that the shut-off valve (15) is only shut when the drive member (16) is exposed to a retardation magnitude above a certain threshold level corresponding to a dampening force of the air damped movement restrictor (29). A spring (35) may be arranged inside the air damped movement restrictor (29).


Patent
Atlas Copco | Date: 2017-03-22

Compressor device with at least two compressor elements (2) connected in series and at least two coolers (12) of which there at least two split coolers that are split in separate successive stages (16, 16), respectively a hot stage (16) and a cold stage (16), that are connected together in one or more separate cooling circuits (20) such that the compressed gas is cooled sufficiently between the compressor elements (2) with a minimum coolant flow rate to keep the temperature of the cooled gas at the outlet (15) of each cooler (12) below a maximum permissible value and thereby to realise a desired temperature increase of the coolant in at least one of the aforementioned cooling circuits (20).


Method for cool drying gas, whereby the cool dryer is characterised by curves that show the setpoint for the evaporator temperature (Tevaporator) or evaporator pressure (pevaporator) for a load ( C ) as a function of the lowest gas temperature (LATset), whereby the method comprises the following steps: - the determination of a curve and Ts et or pset as a function of the load (C) that is required to cool the gas to LATset; - the control of a supply of coolant from the compressor (6) to an injection point (P) downstream from the expansion means (8) and upstream from the compressor (6) in order to make the evaporator temperature (Tevaporator) or evaporator pressure (pevaporator) equal to Tset or pset.


Patent
Atlas Copco | Date: 2017-01-25

A drill module (1) for extraction drilling starting from a gallery (12) below ground, wherein the drill module has two sideward directions (S1, S2), and wherein the drill module includes: a body (4), a drill unit (5) having rotation and drive means for a drill string (27) with a drill bit (6), a first set of spanning means (13) for action downwards towards a ground support for the drill module, a second set of spanning means (31, 31, 32), which are positioned directed sideways. A third set of spanning means (36, 36) is attached to the drill unit (5) and directed at angle to the drilling direction (0) for application against roof portions of said gallery for obtaining direct stabilization of the drill unit (5) relative to these roof portions. The invention also concerns a method.


Patent
Atlas Copco | Date: 2017-03-15

Method for cool drying gas, making use of a heat exchanger (2) whose primary section forms the evaporator (3) of a cooling circuit (4) with a compressor (6), an expansion valve (8) and a bypass pipe (16) across the compressor (6) with a hot gas bypass valve (18), whereby the method makes use of a formula that makes the link between the state of the expansion valve (8) and hot gas bypass valve (18), whereby on the basis of this formula: - either the state of the expansion valve (8) is adjusted as a function of the state of the hot gas bypass valve (18); or - adjusting the state of the hot gas bypass valve (18) as a function of the state of the expansion valve (8) or vice versa; or - the states of both valves (8, 18) are controlled with respect to one another.


Patent
Atlas Copco | Date: 2017-03-22

A joint for joining together drill string components (6, 7) of a drill string for percussion drilling, the joint including a male part (8) and a female part (9) f wherein a first impact surface (10) is arranged to co-operate with a second impact surface (11). When the drill string is in operation, relative axial movement is allowed, between the male (8) and the female (9) parts when the first and the second impact surfaces (10,11) are adjacent to each other. The invention also concerns a male joint part, a female joint part, a drill rod, a shank adapter, a drill head, a drill bit and a drill string component.


The invention relates first of all to a method for putting together a down-the-hole drilling apparatus for plastic pipe drilling. The down-the-hole drilling apparatus has a drilling device for carrying out drilling by using a drilling unit (3) with a plastic pipe (2), which drilling unit includes in its drilling head a drilling arrangement, such as first drilling means (4) for drilling a center hole and second drilling means (5) for reaming the center hole for the plastic pipe (2). The plastic pipe (2) is arranged to be pulled into the hole to be drilled by a power influence directed thereto from the drilling unit (3), such as the second drilling means (5) or a casing shoe (8), being coupled with the second drilling means in a manner transmitting power at least in the longitudinal direction (s) of the drilling device. The drilling unit (3) and the plastic pipe (2) are being coupled with each other by a skirt part (z) that exists at an opposite end (II) of the drilling arrangement, such as the second drilling means (5) or the casing shoe (8), with respect to the drilling surface (P) of the drilling unit (3), which skirt part has an internal protrusion assembly (x) in radial direction (r), wherein by pressing the skirt part (z) together in the radial direction (r) a contact surface (K) is being achieved that is formed in the longitudinal direction (s) along outer surface of the end (I) of the plastic pipe, in order to pull the plastic pipe (2) into the hole to be drilled by a power influence being transmitted from the contact surface. The invention relates on the other hand also to a down-the-hole drilling apparatus to be put together according to the method.


Grant
Agency: European Commission | Branch: H2020 | Program: ECSEL-RIA | Phase: ECSEL-01-2014 | Award Amount: 30.14M | Year: 2015

The overall concept of MANTIS is to provide a proactive maintenance service platform architecture based on Cyber Physical Systems that allows to estimate future performance, to predict and prevent imminent failures and to schedule proactive maintenance. Maintenance is no longer a necessary evil that costs what it costs, but an important function that creates additional value in the business process as well as new business models with a stronger service orientation. Physical systems (e.g. industrial machines, vehicles, renewable energy assets) and the environment they operate in, are monitored continuously by a broad and diverse range of intelligent sensors, resulting in massive amounts of data that characterise the usage history, operational condition, location, movement and other physical properties of those systems. These systems form part of a larger network of heterogeneous and collaborative systems (e.g. vehicle fleets or photovoltaic and windmill parks) connected via robust communication mechanisms able to operate in challenging environments. MANTIS consists of distributed processing chains that efficiently transform raw data into knowledge while minimising the need for bandwidth. Sophisticated distributed sensing and decision making functions are performed at different levels in a collaborative way, ranging from local nodes to locally optimise performance, bandwidth and maintenance; to cloud-based platforms that integrate information from diverse systems and execute distributed processing and analytics algorithms for global decision making. The research addressed in MANTIS will contribute to companies assets availability, competitiveness, growth and sustainability. Use cases will be the testing ground for the innovative functionalities of the proactive maintenance service platform architecture and for its future exploitation in the industrial world. Results of MANTIS can be utilised directly in several industry areas and different fields of maintenanance.

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