摘要:
The invention is based on a multi-chamber flat tube (V1-V17) having at least two chambers (1, 2) for holding the flow of a fluid, produced by deforming a sheet-metal strip, in particular produced in a bending and/or folding and/or crimping process, in which a closed profile is formed by: opposite wide walls (4, 6) which are connected to one another by means of opposite narrow walls (5, 7) which form in each case one deformed region, with the wide and narrow walls forming outer sides of the profile, with a first wide wall (4) being formed by an inner section of the sheet-metal strip which is situated between side sections of the sheet-metal strip, and with a second wide wall (6) being formed by side sections, which are arranged to the sides of the inner section, of the sheet-metal strip, with the first and second wide walls (4, 6) being connected by means of a web (3) which separates at least two chambers and which forms an inner side of the profile and which is formed by an edge section (3A, 3B) of at least one of the side sections, with only one of the side sections having an edge section (3A, 3B) which runs continuously, in particular from an inner side, of the second wide wall (6) to, in particular an inner side, of the first wide wall (4) and is connected there in a cohesive manner, in particular by means of soldering, at a contact point (8), with the continuous edge section having at least two deformed sections (3B.1, 3B.2, 3B.3, 3B.4, 3B.5) and at least one of the deformed sections forming a contact surface (9) for an edge section (3A) of the other side section. To improve a multi-chamber flat tube of said type, the invention provides the following possible measures, if appropriate in combination. In a first variant, that deformed section of the continuously running edge section (3B) which forms the contact surface (9) may run obliquely or at right angles with respect to the second wide wall (6), and at least one further deformed section of the continuously running edge section (3B) may run obliquely or at right angles with respect to that deformed section of the continuously running edge section (3B) which forms the contact surface (9). In a second variant, that deformed section of the continuously running edge section (3B) which forms the contact surface (9) may be one of a plurality of deformed sections which are arranged in a v-shape, s-shape, u-shape or o-shape or so as to be wound or folded. In a third variant, it is possible for the edge section (3A) of the other side section not to have a deformed section and to be part, in particular of the first or second region, of the second wide wall (6). In a fourth alternative, the edge section (3A) of the other side section may have only deformed sections (V11-V14) which run at right angles or parallel to the second wide wall, in particular only deformed sections which are arranged in an i-shape or l-shape. The invention also encompasses a multi-chamber flat tube in which at least one of the chambers (1, 2) is formed by a plurality of walls, in particular two walls, and the web (3) has at least two of said walls, and at least one edge section (3A) of the side sections is fixed to the web (3). The invention also encompasses a corresponding heat exchanger and a corresponding use of the heat exchanger.
摘要:
The invention relates to a heat exchanger provided for heating purposes, particularly for a motor vehicle, comprising: a number of parallel pipes, at least one electric heating device (4), which is mounted each time between two adjacent pipes, and comprising a number of fin elements (5) situated between each pair of adjacent pipes and between each heating device (4) and the pipes adjacent thereto. In order to be able to better control the power absorption of the heating devices (4), each heating device (4) comprises two separately controllable heating sections (6, 7). One heating section (6) is placed on one side (8) of the heating device (4) facing one adjacent pipe, whereas the other heating section (7) is placed on an opposite side (9) of the heating device (4) facing the other adjacent pipe.
摘要:
A device which is used to replace heat, for a motor vehicle, includes at least one first collecting and/or distribution device for at least one fluidic medium. The collecting and/or distribution device is fluidically connected to a plurality of through-flow devices, through which the medium flows at least in parts. The collecting and/or distribution device includes at least one base device, a covering device and a separating device, which divides the collecting and/or distribution device into at least two partial areas. The base device includes at least one projection which protrudes in an inward manner from a predetermined plane of the base device in relation to the collecting and/or distribution device and at least one section of the separating device is in contact with at least one lateral side of the projection, and at least one section of the plane of the base device is in indirect contact.
摘要:
The invention relates to a device which is used to replace heat, in particular for a motor vehicle, comprising at least one first collecting and/or distribution device for at least one fluidic medium. The collecting and/or distribution device is fluidically connected to a plurality of through-flow devices, through which the medium flows at least in parts and the collecting and/or distribution device comprises at least one base device, a covering device and a separating device, which divides the collecting and/or distribution device into at least two partial areas. The base device comprises at least one projection which protrudes in an inward manner from a predetermined plane of the base device in relation to the collecting and/or distribution device and at least one section of the separating device is in contact with at least one lateral side of the projection, and at least one section of the plane of the base device is in indirect contact.
摘要:
The invention relates to a heat exchanger, in particular an evaporator (1), with a plurality of refrigerant-carrying pipes (6, 7) which are arranged next to one another and end in at least one collecting vessel (9), and with at least one cold accumulator (4), in which a cold accumulating medium is provided, wherein the evaporator (1) has two regions arranged parallel to each other, a first region (1′) and a second region (1′), and the cold accumulator (4) is arranged in the second region (1′). In this case, the refrigerant-carrying pipes (6, 7) of the first and second regions (1′,1′) are arranged in line with one another and have a width corresponding to one another (b1, b2, b3), and the first and second regions (1′, 1′) have common, continuous corrugated rib.
摘要:
The invention relates to a heat exchanger, in particular, an evaporator (1), in particular for a motor vehicle air-conditioner, with a number of closely arranged refrigerant tubes and at least one cold reservoir (4), in which a refrigerant medium is provided. The evaporator (1) comprises two parallel regions (1′ and 1″) running across the total width, the first region (V) corresponding to a conventional evaporator in design, the cold reservoir (4) being arranged in a separate second region (1″), through which at least a partial flow of refrigerant can flow which also flows through at least a part of the first region (1′) and the first and the second region are connected to each other by at least one overflow opening (13).
摘要:
The invention relates to a heat exchanger, in particular a flat pipe evaporator (1) for a motor vehicle air conditioning system, comprising at least one collecting tank (2) made of sheet steel which is divided in the longitudinal direction into at least two chambers and the ends of the pipe, in particular, flat pipes, are introduced in the base thereof. Said collecting tank (2) comprises a tunnel-shaped part (5), an essentially flat part (4) which forms the base, and covers (6) which are arranged on the front side thereof. At least one cover (6) is embodied in a flat manner in at least the outer edge area thereof and is positioned in a positive fit in the collecting tank.
摘要:
The invention relates to a heat exchanger (1), in particular for a motor vehicle, comprising a heat exchange assembly with a primary side, through which a first medium flows and a secondary side, through which a second medium flows and a housing sleeve with an inlet and an outlet for a second medium.
摘要:
The present invention relates to a method and a device for crushing glass bodies, in which the glass body 18 is arranged in a microwave field 4, so that the said glass body 18 is crushed on account of the resulting thermal stresses. In addition, a local plasma 20, which results in further thermal stresses, is produced on the surface of the glass body 18. Since the glass body 18 to be crushed does not come into contact with crushing means, for example rollers or the like, the pieces of broken glass 22 cannot be contaminated by abrasion particles of the crushing means. The plasma 20 permits a rapid and economic crushing of the glass bodies.
摘要:
A high-frequency device for melting and refining inorganic compounds having a high-frequency oscillation system and a crucible. The high-frequency system includes an induction coil looping around the crucible and at least two oscillator circuits connectable in parallel to the induction coil and providing redundant high frequency energy. Each self-exciting oscillator includes one of the capacitors and the induction coil. The device may further include a power supply, a control cabinet having operating units, and a process control system.