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Turbocharged compression ignition engineRelated Patent Categories: Power Plants, Fluid Motor Means Driven By Waste Heat Or By Exhaust Energy From Internal Combustion Engine, With Supercharging Means For EngineTurbocharged compression ignition engine description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070062187, Turbocharged compression ignition engine. Brief Patent Description - Full Patent Description - Patent Application Claims
FIELD OF THE INVENTION [0001] This invention relates to a turbocharged compression ignition engine. More particularly, the invention relates to components for a turbocharged compression ignition engine and to a compression ignition engine including such components. BACKGROUND OF THE INVENTION [0002] Mining environments are clearly hazardous environments where extreme safety precautions must always be considered and upgraded. Of particular importance, are the safety measures designed with regard to the combustibility of the material being mined. Any object brought into a mine can either create a spark or simply heat up to temperatures above a critical ignition temperature which can cause explosions. This is a serious problem within coal mines, in particular, since coal dust can spontaneously ignite at temperatures of about 160.degree. C. to 170.degree. C. This means that any object introduced into the mines must not emit flames or sparks and surfaces must remain well below critical temperatures. [0003] Heavy machinery is used throughout the mining industry to move materials around the mines, in particular LHD (Load Haul Dump) machines. These machines require a great deal of power to move heavy loads. Ideally turbocharged engines should be used since they increase the amount of power in comparison with a naturally aspirated engine of similar capacity without suffering a significant fuel consumption disadvantage. [0004] However, turbochargers of compression ignition engines have surface temperatures in excess of 150.degree. C. and as a result temporary measures have been implemented on and around `hot spots` to reduce the surface temperature of the turbochargers and increase safety measures. As a consequence of the unreliable nature of this temporary method, non-turbocharged engines have been traditionally used since their surface temperatures remain below the critical temperatures, although they continue to remain inefficient in light of the present technology. [0005] In addition to the problems associated with the surface temperatures of the turbocharger, flames or sparks emitted from the engines or occurring within the engine itself, also present a potential danger. As a result, flame traps are positioned within the engine system to arrest the transmission of flames. [0006] At present, the arrangement is such that the flame traps are situated at the inlet of the turbocharger so that the aftercooler is situated directly off the turbocharger at a right angle. This arrangement does not optimise the space constraints within the engine and furthermore the arrangement of the flame trap, turbocharger and aftercooler do not optimise fluid flow rates within the system. Thus there is a need for improved methods to increase the efficiency and safety of the turbocharged compression ignition engine. SUMMARY OF THE INVENTION [0007] According to a first aspect of the invention, there is provided a component for a turbocharger, the component including; [0008] a housing defining a chamber for a predetermined part of the turbocharger; and [0009] a jacket surrounding the housing, the jacket being arranged in a spaced relationship relative to an outer surface of the housing to define a fluid path about said outer surface of the housing, the fluid path having a fluid inlet and a fluid outlet. [0010] A preferred embodiment may comprise the fluid path having the fluid outlet situated at a furthermost position from the fluid inlet, so that, in use, the effect of the cooling fluid is maximised since it covers a larger portion of the outer surface of the housing and hence increases the efficiency of the cooling arrangement. [0011] The housing may be a compressor housing of the turbocharger and may have an air inlet for receiving uncompressed air and an air outlet for discharging compressed air to an engine. [0012] The jacket may be of aluminium and may be attached to the housing by welding by appropriate choice of welding techniques. [0013] The invention extends also to a turbocharger having a component as described above. [0014] According to a second aspect of the invention, there is provided a flame trap housing for a flame trap of a compression ignition engine, the housing having an inlet configured to engage an air outlet of a turbocharger and an outlet configured to engage an inlet of an inlet after-cooler, the housing being double skinned, having an inner skin defining a flame trap compartment and an outer skin arranged in a spaced relationship relative to the inner skin, to define a fluid path for the flow of a cooling fluid about the inner skin of the housing. [0015] The housing may define a cooling fluid inlet and a cooling fluid outlet of the fluid path. Further, the cooling fluid outlet may be situated at a furthermost position on the housing relative to the cooling fluid inlet so that, in use, the effect of the cooling fluid is maximised since it traverses a larger portion of the inner skin of the housing and hence increases the efficiency of the cooling arrangement. [0016] According to a third aspect of the invention there is provided a fluid input assembly for a compression ignition engine, the assembly including [0017] a turbocharger; [0018] a flame trap, as described above, connected to an outlet of the turbocharger; and [0019] an inlet after-cooler connected to an outlet of the flame trap. [0020] The turbocharger may include a component as described above. The fluid outlet of the jacket of the compressor housing may be in fluid communication with the cooling fluid inlet of the flame trap housing. [0021] The invention extends still further to a compression ignition engine including a fluid input assembly as described above. Continue reading about Turbocharged compression ignition engine... Full patent description for Turbocharged compression ignition engine Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Turbocharged compression ignition engine patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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