Abstract: The present disclosure relates to a tumble dryer 1 with a rotatable drum 11 and a heat pump for drying process air that enters the drum, the heat pump comprising a condenser 19, a compressor 17, and an evaporator 15. In order to improve energy efficiency, the rotatable drum comprises a circular rear wall with air inlet openings and a radial cylindrical wall with air outlet openings, the compressor 17 is adapted to be run by an inverter 29, allowing the compressor output to be varied, and the expansion 16 is controllable. This allows the heat pump arrangement to be controlled to an optimum heat pump cycle envelope.

Abstract: The present disclosure relates to a tumble dryer (1) with a rotatable drum (11) and a heat pump for drying process air that enters the drum, the heat pump comprising a condenser (19), a compressor (17), and an evaporator (15). In order to improve energy efficiency, the compressor (17) is located in the flow (21) of process air, between the evaporator (15) and the condenser (19). Thereby, heat dissipated from the compressor is used to pre-heat the process air flow before entering the condenser (19).

Abstract: The present disclosure relates to a tumble dryer (1) comprising a housing (2), a rotatable drum (11) in the housing being accessible from a front side (3) of the housing, and a fan arrangement (13) for producing a flow of process air through the drum. A heat pump is used for drying the process air before it enters the drum, the heat pump comprising a condenser (19), a compressor (17), and an evaporator (15). The condenser 19 the compressor (17), and the evaporator (15) are arranged as components in a heat pump unit (43), wherein the heat pump unit is removable from the remainder of the tumble dryer (1) through an opening in the rear side of the tumble dryer housing without separating the components. This facilitates for instance service of the tumble dryer.

Abstract: A tumble dryer (1) comprising: a rotatable drying drum (21), adapted to receive laundry to be dried, said drum (21) comprising a cylindric outer periphery (27) provided with a plurality of openings (25); at least one particle separation filter (29) arranged below the drying drum (21), said filter (29) having a width corresponding to at least 50% of the cylindrical diameter of the drum (21); a fan (39) and a funnel shaped interface (45) adapted for formation of a tapering transmission channel between the at least one filter and the fan (39). The fan (39) being a radial fan, having an axis (47) arranged with an inclination (a) of 0-25° from a vertical direction (V), such that an air stream that is introduced into the drum (21) leaves the drum (21) through the periphery (27) thereof, is led through the at least one filter (29), is collected by the funnel shaped interface (45), and directed towards a rear part of the tumble dryer (1) by the fan (39).

Abstract: The present disclosure relates to a tumble dryer (1) with a rotatable drum (11) and a heat pump for drying process air that enters the drum, the heat pump comprising a condenser (19), a compressor (17), and an evaporator (15). In order to improve energy efficiency, the compressor (17) is located in the flow (21) of process air, between the evaporator (15) and the condenser (19). Thereby, heat dissipated from the compressor is used to pre-heat the process air flow before entering the condenser (19).

Abstract: The present disclosure relates to a tumble dryer (1) with a filter arrangement (12) located in a tumble dryer process air flow (21) for removing lint from process air leaving tumble dryer drum. The filter arrangement comprises a first coarse-mesh filter (25) and a second fine filter (27). A first sensor (41) detects a correct positioning of the first filter in the tumble dryer, and a second sensor (33) detects a pressure drop over a process air flow path comprising the second filter. A control arrangement (45) is configured to initiate a disabling operation which disables the fan arrangement (12), if the first filter is not correctly positioned in the tumble dryer or if the pressure drop over the second filter exceeds a predetermined threshold value.

Abstract: The present disclosure relates to a tumble dryer 1 with a rotatable drum 11 and a heat pump for drying process air that enters the drum, the heat pump comprising a condenser 19, a compressor 17, and an evaporator 15. In order to improve energy efficiency, the rotatable drum comprises a circular rear wall with air inlet openings and a radial cylindrical wall with air outlet openings, the compressor 17 is adapted to be run by an inverter 29, allowing the compressor output to be varied, and the expansion 16 is controllable. This allows the heat pump arrangement to be controlled to an optimum heat pump cycle envelope.

Abstract: The present disclosure relates to a tumble dryer (1) comprising a housing (2), a rotatable drum (11) in the housing being accessible from a front side (3) of the housing, and a fan arrangement (13) for producing a flow of process air through the drum. A heat pump is used for drying the process air before it enters the drum, the heat pump comprising a condenser (19), a compressor (17), and an evaporator (15). The condenser 19 the compressor (17), and the evaporator (15) are arranged as components in a heat pump unit (43), wherein the heat pump unit is removable from the remainder of the tumble dryer (1) through an opening in the rear side of the tumble dryer housing without separating the components. This facilitates for instance service of the tumble dryer.

Abstract: A tumble dryer (1) comprising a heat pump system (22) and an air flow circuit (21) for circulation of an air flow. The air flow circuit (21) comprises a condenser (19), a drying drum (11), a fan arrangement (13), an air flow duct (18) and an evaporator (15). The air flow duct (18) comprises a constriction (16), arranged upstream the evaporator (15). The constriction (16) is provided with a plurality of openings (23), distributed across a cross section of the air flow duct (18), wherein the constriction (16) is adapted to create a pressure drop in the air flow that is circulated in the air flow duct (18), when the air flow flows from a first side A of the constriction (16) to a second side B of the constriction (16). The openings (23) in the constriction (16) are adapted to distribute the air flow across the cross section of the air flow duct (18).

Abstract: A device for internally cladding an outer tube with an inner tube by means of an explosion process. The device includes an outer tubular fixture (1) in which a workpiece in the form of the outer (2) and the inner (3) tubes can be placed; at least one end of the tubular fixture (1) is connected to an expansion chamber (7, 10); and a sealing cap (6) of easily destructed material is located between a respective expansion chamber (7, 10) and the workpiece. The sealing cap or caps (6) is/are intended to retain a liquid pressure-transmitting medium (5), preferably water, in the inner tube (3) prior to detonating an explosive substance (4) placed within the inner tube (3).

Abstract: A method of cladding an outer tube (1) with an inner tube (2), wherein the inner tube is made of a corrosion-resistant material, for instance. The inventive is characterized by placing a number of explosive charges (3) in mutually spaced arrangement in the inner tube (2), in contact with or essentially in contact with the inner surface of the inner tube; filling the inner tube with a pressure-transmitting medium (4), preferably water; and detonating all explosive charges (3) simultaneously, so as to obtain a local metallurgical bond (6) at the regions of the explosive charges and so as to cause the inner tube (2) to expand into abutment with the outer tube (1).

Abstract: Adjustment device for tiltable sitting furniture with a stand (1) and a seat board (9) pivoting at the front side of the stand, as well as a driving device (16) arranged to convey the seat board (9) its tilt motion, where the seat board (9) at the front is pivotally arranged at the front edge of a fork (7) articulatedly suspended via arms (5) at the front part of the stand, which fork is in rear the part of the stand and at the rear is guided slidably against a slide rail (10), and the driving device (16) of which via a pressure arm (12) pivotally arranged at the stand transfers motion to the seat board, in addition to the pressure arm (12) is pivotally connected a control bar (19) between its pivot point and its end with the seat board, which control bar during work of the driving device (16) with its front part first is brought to bearing on a position adjustable backing roller (21) connected to the arms (5) of the fork (7) and subsequently with its rear part (23) in different positions adjustable against a

Abstract: An explosive composition comprises one or several self-detonating explosives, such as PETN, HMX, TNT or RDX, desensitized by wax or water and one or several inert materials. The invention is characterized in that the inert material or a part thereof consists of a rubber of the type silicone rubber or latex rubber, which inert material constitutes matrix or binding agent. The components after being mixed together constitute a composition, which can be cast, extruded or rolled-out.

Abstract: A method of explosion welding magnesium-alloyed aluminium to high strength material.

Abstract: A charging system for seam welding two or more workpieces by means of explosion welding, comprising an explosive charge and an inert impulse-transmitting body located between the explosive charge and the workpiece nearest the charge. The invention is characterized in that the surface (11) of the inert body (2) facing the workpiece is so configured in a plane extending at right angles to the longitudinal extension of the ultimate weld seam that the angle .alpha. between the surface (11) and the workpiece (3) varies from the center line (C--C) of the inert body (2) perpendicularly to the surface of the workpiece and outwardly from the center line.

Abstract: The invention relates to a method for welding different materials. An adapted quantity of additive material in the form of particles (3) is accelerated with the aid of an explosive charge (1) and a propulsion element (2) to a high velocity down into a joint space (8), where the particles collide with the workpieces (4, 5) and bond thereto and to themselves.

Abstract: A damping device in a bogie of a railbound freight car has good ride properties independent of the load carried by the car by making the damping device with friction wedges of triangular cross-section, an upper surface of which confronts an adjoining load-supporting bolster beam and is joined thereto through a tertiary spring element of high stiffness in the vertical direction and of relatively low stiffness in the lateral direction. A lower surface of each friction wedge adjoins the upper side of the respective bogie suspension unit.

Abstract: Compressed refrigerant from a heat pump compressor flows through a first of three heat exchanger passages that are in mutual heat transfer relationship. Radiator water from a reservoir flows through a second of those passages and back to the reservoir in a heat exchange circuit. A radiator circuit that has at least one radiator is connected with the reservoir in parallel with the heat exchange circuit. Through the third passage a source of unheated tap water is communicated with a tap system from which heated tap water can be drawn, flow through that third passage being counter to refrigerant flow in the first passage. In the heat exchange circuit radiator water can be pumped through the second passage counter to refrigerant flow to be heated or counter to tap water flow for tap water heating. A separate pump in the radiator circuit circulates radiator water through it as needed to meet heat demands at the radiator.

Abstract: A tertiary heat exchanger having three sets of adjacent ducting, two stacked within the third, all of which carrying heat exchange mediums so that the heat carried by one medium in any set of a ducting is efficiently transferred to the other two. Two of the three sets of ducting are tubing and this tubing is spirally coiled in a container within the third set of ducting. The two sets of tubing are in alternating layers and the fluid flow of the heat exchange mediums are in opposite directions in each adjacent layer of the tubing. Outlet channels are provided at various points along the helical path of a ducting so as to alter the effective length of a ducting.

Abstract: A method of bonding powdered material to a surface comprising placing at least one layer of powdered material onto a support of ductile material, positioning a surface to be coated by the powdered material in facing spaced relation with the powdered material and placing an explosive charge on the support on the surface thereof opposite the powdered material. The explosive charge is then detonated to produce acceleration of the support and the powdered material thereon towards the surface to be coated to cause impact of the powdered material with the surface to be coated and welding thereof. The detonation of the explosive charge proceeds along the length of the charge to progressively bring the powdered material into impact contact with the surface to be coated. The speed of detonation of the explosive charge is less than the speed of sound in the powdered material or support.