摘要:
A cooling system of an internal combustion engine of a motor vehicle has a cooling circuit, including a coolant/air radiator for cooling the engine, and a heating circuit, including a coolant/air heat exchanger for heating the passenger compartment. The cooling system includes an additional or secondary heater integrally associated with a coolant/air radiator to increase the heating capacity. The problem encountered with modern engines, particularly diesel engines, is that too little heat is available for heating the passenger compartment. Consequently, a secondary heater is needed. The secondary heater, which can be a fuel heater with a burner part and a heat exchanger part, is integrated into the radiator. This arrangement is advantageous in that the burner, with its fuel and exhaust gas line, is located outside the passenger compartment.
摘要:
A heat exchanger, produced by the insertion of welded pipes into a rib pack, has a good connection between the rib pack and the pipes after expansion of the pipes. An optimal contact of the pipes against the passages in the cooling fins of the rib pack is achieved because the weld base of the welded pipe lies in a recess. The recess is formed by reduction of the wall thickness of a strip material from which the welded pipe is produced.
摘要:
A method of making high performance friction materials with tailored levels of a ceramic hard phase to achieve optimum thermal conductivity, friction coefficient and wear performance of composite brake materials. In accordance with one method of the invention specific end-use application friction requirements are satisfied by tailoring the level of carbon in a selected carbon/carbon preform, heat treating the carbon/carbon composite preform, thereby affecting thermal conductivity so as to optimize overall braking performance prior to ceramic processing and by selecting an optimum level of ceramic hard phase to achieve satisfactory friction disc wear life and friction characteristics of the braking material.
摘要:
A cargo loading crane (10) comprises a crane bridge (16) having two hoist units (26, 28) with hoisting gear (26b, 28b) and assigned cargo pick-up devices (26c, 28c), a transfer unit (32) with at least one cargo pick-up region (32o, 32u) and a conveyor unit (64). Division of the horizontal transport path between the transfer unit (32) on the one hand and the conveyor unit (64) on the other shortens the duration of the operating cycle for loading and unloading a cargo carrier (18).
摘要:
Diphenylamine is made by heating aniline under pressure and temperatures of 250.degree.-400.degree. C in the presence of a boron/fluorine compound and water.
摘要:
A transporter for red hot steel ingots has two pairs of jaws horizontally movable relative to each other along a carrier bar. A hanger pivotally mounted on one jaw and carrying a gripper pad may be swung toward the other jaw by a separate clamping drive. The momentum exerted on the jaws by the engaged ingot causes sufficient angular displacement of the jaws to tilt them into jamming engagement with the carrier bar, thereby blocking longitudinal jaw movement on the bar.
摘要:
The invention pertains to a lightweight board with two thin-walled top layers and at least one core layer located between the top layers and connected to these, and a process to manufacture this. The process to manufacture the invented lightweight board is characterised by a first process stage in which a groove is made in at least one longitudinal side of the lightweight board, a profile strip is inserted in a second process stage into the groove in the lightweight board and a further profile strip is attached in a third stage on the previously attached profile strip. The process to manufacture another invented lightweight board is characterised by a first process stage in which a groove is made in at least one longitudinal side of the lightweight board, a profile strip is inserted in a second process stage into the groove in the lightweight board, the profile strip projecting over the groove in the lightweight board is removed in a third process stage and a further profile strip is attached to the previously trimmed profile strip in a fourth process stage.
摘要:
A folding top for a convertible has a folding top linkage and a folding top covering carried by the folding top linkage. The folding top covering comprises at least one folding top material segment. For reducing or saving the connecting seams and the sealing measures, at least one folding top material segment is shaped by thermal deformation to a three-dimensional shape adapted to the contour of the folding top.
摘要:
For the positional correction of a load carrier (34) suspended on a trolley (22) a cable member (50′) of the lifting cable system interposed between the trolley (22) and the load carrier (34) is displaced in a horizontal direction at a location near the trolley (22) relative to the trolley (22) by imparting a movement onto a cable course influencing member (56) which is adjustably guided on the trolley in a horizontal direction and is subjected to the action of movement means (60) which again are supported on the trolley (22).
摘要:
A latch for a top of an automobile has a housing mounted on the top with a movable latching hook cooperating with a link mounted on the windshield frame. The latching hook is displaceable by an actuating device from a closed position into an open position. To produce a latch which forms a compact module, takes up little space in the transverse vehicle direction, and whose latching hook is movable by a motor, the motorized actuating device for the latching hook has a drive motor aligned approximately parallel to the lengthwise direction of the latching hook. The motor is in an operating relationship through a transverse transmission element and a downstream transmission with a drive lever to move the latching hook.