摘要:
A heat exchanger in which refrigerant flows has a first core portion disposed in a first air passage for exchanging heat with inside air and a second core portion for exchanging heat with outside air. The second core portion is disposed at a downstream side of the first core portion in a refrigerant flow direction. Accordingly, refrigerant exchanges heat with inside air, first, and then exchanges heat with outside air, a temperature of which is lower than that of inside air. Further, refrigerant flows to form an opposed flow with respect to an air flow direction in the respective first and second core portions. As a result, heating performance of the heat exchanger is improved.
摘要:
A radiator includes a plurality of flat tubes in which refrigerant flows, corrugated fins each of which is disposed between adjacent the flat tubes, and a header tank disposed at both end sides of each flat tube in a longitudinal direction of the flat tubes. A plurality of insertion holes into which the flat tubes are inserted are formed in a tank portion of the header tank, and each of the insertion holes has a hole width approximately equal to a tank width of the header tank in a width direction perpendicular to both of the longitudinal direction of the flat tubes and an extending direction of the header tank. The tank portion of the header tank is integrally formed from extruding or drawing, and the insertion holes are formed by shaving the tank portion after the extruding or drawing. Thus, the insertion holes can be readily provided in the tank portion integrally formed from the extruding or the drawing, and pressure tightness and manufacturing workability of the header tank can be improved.
摘要:
A numerical controlled router is enclosed by a housing mounted on a support structure wherein the housing has an opening formed in front of a router head structure. Bearings are provided outside of the housing.A rotatable shaft is rotatably supported by the bearings and two suction tables are attached to the rotary shaft and the table can be inclined by rotary cylinders.
摘要:
Apparatus and method for operating a numerical control router in which two processing tables are employed such that when a process board on one table is being processed, another process board may be loaded on to the second table and when processing is complete the first and second tables exchange positions.
摘要:
The apparatus for the production of a thin strip core comprises a spool for winding a ribbon-like thin strip, a clamping device for clamping and moving the ribbon-like thin strip, a winding core driving device for causing the ribbon-like thin strip clamped by the clamping device to be wound in a prescribed length around a winding core, a cutting device for cutting the ribbon-like thin strip after the ribbon-like thin strip has been wound in the prescribed length around the winding core, a welding device for welding the trailing end of the wound thin strip cut off, a releasing device for releasing the connected wound thin strip, and a measuring device for taking the weight of wound thin strip released. This invention can produce the thin strip core quickly because all of the works involved in the production of the thin strip core are automatically carried out without requiring any manual operation. Further, it imparts a fixed weight to all of the wound thin strip of product owing to the procedure which comprises weighing each wound thin strip immediately after the wound thin strip is cut off and setting the number of plies of winding for the next wound thin strip in due consideration of the cycle of thickness of thin strip so that the next wound thin strip will assume the prescribed weight.
摘要:
A transversally corrugated multi-luminal flat tube for circulating the refrigerant of an evaporator for an automotive air conditioner in indirect heat exchange relation with air is provided with one laterally marginal portion, being the one which faces inlet air flow in a transverse cross-flow system, that is so thick-walled about its outer perimeter, that inlet air, which is corrosive because it contains moisture and salt, will be prevented for a sufficiently long time from corroding pinholes through that part of the tube, the remaining part of the outer periphery of the flat tube, because it is less subject to corrosive attack being thinner walled, so as to maximize durability and mass flow rate, while minimizing weight and cost.