Engine room

Abstract: In a cooling control system for controlling cooling of an engine room of an engine, a water pump and/or cooling fans are arranged within the engine room to cool same, and electric motors electrically drive the water pump and cooling fans. A control unit compares a temperature of the engine detected by a temperature sensor with a plurality of different predetermined values, and based upon results of the comparison, controls the electric motors for driving the cooling fans in such a manner that as the detected temperature is higher, the flow rate of cooling air flowing in the engine room is larger. The control unit is operable when abnormality occurs in sensors for sensing operating conditions of the engine, for operating the electric motors to drive the water pump and cooling fans. Alternatively, an analog circuit is operable when abnormality occurs in the control unit, for operating the electric motors to drive the water pump and the cooling fans.

Abstract: PROBLEM TO BE SOLVED: To improve the assembling workability of an air conditioner to a vehicle by connecting the outlet of a receiver dryer and the inlet of a compressor to the inlet of an expansion valve and the outlet of an evaporator, respectively. SOLUTION: A sub-assembly is composed by assembling a compressor 15, capacitor 17, receiver dryer 18, discharge hose 22 and receiver outlet hose 24 to an engine 10. An expansion valve 19 and an evaporator 20 are attached to a dash panel 8 in a car body side, and the inlet 19a of the expansion valve 19 and the outlet 20a of the evaporator 20 are protruded in an engine room 9. A suction hose 25 is connected to the outlet 20a of the evaporator 20, and fixed to a strut tower 14 via a clamp 38. When the engine 10 as the sub-assembly is mounted in an engine room 9, the receiver exit hose 24 and the entrance of the compressor 15 in the engine side are respectively connected to the inlet 19a of the expansion valve 19a and the suction hose 25 in a car body side. Work in the engine room 9 is facilitated, and assembling workability is improved.

Abstract: Finding the optimum route of ship pipes is a complicated and time-consuming process. Experience of designers is the main tool in this process. To reduce design man-hours and human errors an expert system shell and a geometric modeling kernel are integrated to automate the design process. Existing algorithms for routing problems have been analyzed - most of them are to solve 2-D circuit routing problems. Design of the ship piping system, especially within the engine room, is a complicated, large-scale 3-D routing problem. Methods of expert systems have been implemented to find the routes of ship pipes on the main deck of a bulk carrier. A framework of the intelligent CAD system for pipe auto-routing is suggested The CADDS 5 of Computervision is used as the overall CAD environment, the Nexpert Object of Neuron Data is used as the expert system shell, and the CADDS 5 ISSM is used to build user interface through which geometric models of pipes are created and modified.