Abstract:
Disclosed is a transport refrigeration unit (TRU) 12, 100 having: an engine 32, 120 configured to power a refrigeration system 10, 130 of the TRU 12, 100, the engine 32, 100 including an air intake 140, the engine 32, 120 within an engine compartment 110 of the TRU 12, 100; an air management valve (AMV) 210 fluidly coupled to the air intake 140; a first duct 150 fluidly coupled to the AMV 210 and including a first inlet 160 within the engine compartment 110; and a second duct 180 fluidly coupled to the AMV 210 and including a second inlet 190 that is exterior to the engine compartment 110 and is configured to receive atmospheric air; wherein: the AMV 210 is configured to modulate air into the engine 32, 120 from the first duct 150 and the second duct 180, when a temperature of air within the AMV 210 is above the first threshold and the temperature of air within the second duct 180 is below the first threshold, to lower the temperature of air entering the engine 32, 120 to below the first threshold.
Abstract:
The present invention relates to a device (1) for the thermal management of the intake air of a combustion engine (3) equipped with a turbocharger (5), said device comprising: a first heat exchanger (7) placed in the air intake circuit (9), a second heat exchanger (10) placed on the main exhaust line (12) and connected to the first heat exchanger (7) to form a heating loop (A), said thermal management device (1) further comprising what is referred to as a low-pressure exhaust gas recuperation system (14) comprising a first branch-off (141) positioned downstream of the turbine (5b), an outlet (142) positioned upstream of the compressor (5a), and a regulating valve (140), the second heat exchanger (10) being positioned between the turbine (5b) and the first branch-off (141), the main exhaust line (12) comprising a bypass (26) between a second branch-off (201) positioned on the main exhaust line (12) upstream of the second heat exchanger (10), a bypass device (200) able to manage the circulation of the exhaust gases, and an outlet (202).
Abstract:
An intake manifold is provided that controls swirl on entry to a combustion chamber. Each intake manifold includes a fin or rib portion positioned to reduce or eliminate swirl induced by the configuration of the intake manifold, particularly when used in a large engine having a left bank and a right bank of combustion chambers. By controlling swirl induced by the intake manifold, swirl consistency is improved between engine cylinders and between the left bank and the right bank, improving the consistency of power output and reducing emissions, particularly particulate emissions, also called smoke.
Abstract:
Intake apparatus for an engine comprising: injection means for injecting fuel into a flow stream of intake gas through the apparatus; and heating means for heating intake gas passing through the apparatus,the apparatus being operable to inject fuel into the flow stream of intake gas by means of the injection means such that when intake gas flows through the apparatus at a first flow rate injected fuel impinges on the heating means; and when intake gas flows through the apparatus at a second flow rate greater than the first a flowpath of injected fuel is deflected by intake gas such that substantially no fuel impinges on the heating means.