Refrigeration – Processes – Compressing – condensing and evaporating
Patent
1994-11-15
1996-12-17
Tapolcai, William E.
Refrigeration
Processes
Compressing, condensing and evaporating
623231, 62295, F25D 1900
Patent
active
055841856
DESCRIPTION:
BRIEF SUMMARY
This invention relates to internal combustion engine powered energy providing assemblies.
This invention has particular reference to an energy providing assembly for supplying electrical power and/or coolant in such manner that electrical energy or coolant may be readily utilised for useful purposes such as in marine vessels and for illustrative purposes particular reference will be made to such application. Of course energy providing assemblies of the present invention could also be adapted to supply hydraulic fluid or mechanical energy and in regions where main power is not available, such as on islands and in remote areas.
Although many marine vessels are powered by diesel engines, it is often inappropriate to use relatively large propulsion engines to supply power for electrical appliances, refrigeration and air conditioning and the like when such vessels are at anchor. Such power requirements have traditionally been met by the use of diesel-powered generators to supply electricity to power the air-conditioning and refrigeration equipment. Such generators are typified as being bulky, heavy, and noisy and it is relatively inefficient to operate air conditioning and refrigeration from them.
Furthermore in recent years, the demand for sophisticated electrical appliances and comfortable living conditions on board vessels has extended progressively to smaller craft. However there is considerable difficulty in making such installations practical in terms of maintaining low vibration and noise on small vessels in particular. Such requirements are particularly difficult to meet where the further energy requirements are required as an aftermarket addition.
This invention aims to alleviate at least one of the above disadvantages and to provide internal combustion engine powered energy providing assemblies which will be reliable and efficient in use.
With the foregoing in view, this invention in one aspect resides broadly in an internal combustion engine powered energy providing assembly including: said internal combustion engine; energising a utility, and means.
The utility may be, for example, an electrical appliance, air conditioning or cooling means or propulsion apparatus.
Preferably the energy providing means includes generating apparatus for generating electrical power, suitably alternating current at mains specification, and/or refrigeration apparatus for providing a coolant which may be a compressed refrigerant or a chilled liquid. Mains specification power shall be understood to be electrical power at the voltage and frequency specification, where applicable, of a selected location.
Alternatively the energy providing means could be a hydraulic pump or a coupling shaft for transferring mechanical power. It is also preferred that the internal combustion engine is a water cooled diesel engine but of course petrol powered and air cooled engines may be used if appropriate.
In a preferred embodiment of the invention the coolant apparatus includes a refrigeration compressor, a water-cooled condenser, a chiller/evaporator and a positive displacement circulating pump which may be mechanically driven from the engine and/or powered from an electric generator driven by the engine. It is also preferred that the suspension means includes compliant springs which suspend the engine and its associated driven equipment within the supporting frame assembly. The latter suitably includes an enclosure adapted to minimise radiated mechanical noise. In order to minimise complexity it is preferred that at least three compliant suspension springs depend within or from the supporting frame assembly in a convergent manner to laterally and longitudinally spaced spring mountings on the engine whereby the springs provide effective location of the engine and its associated driven equipment. It is also preferred that the suspension springs are length adjustable. The suspension means may also include snubbing means for limiting movement of the engine relative to the enclosure. For applications requiring particularly low noise levels, an
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Archibald Robert C.
Grigg Frank W.
Rumble Ronald H.
Smith Kenneth B.
Mishport Pty Ltd
Tapolcai William E.
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