A transport refrigeration system (TRS) and method of operating a TRS having a sorption subsystem are disclosed. The TRS includes a refrigeration subsystem and a sorption subsystem. The refrigeration subsystem includes a refrigerant, a compressor, a refrigerant condenser, a refrigerant expansion device, and a refrigerant evaporator in fluid communication such that the refrigerant can flow therethrough. The sorption subsystem includes a heat transfer fluid, a heat source, a boiler, a sorption condenser, a sorption expansion valve, a sorption evaporator, and a pump in fluid communication such that the heat transfer fluid can flow therethrough. The sorption evaporator is in thermal communication with the refrigeration subsystem.

A utility vehicle includes: an air-cooled engine; a cooling fan disposed on one side of the engine with respect to a vehicle widthwise direction and configured to supply a cooling air towards a cylinder unit of the engine; an exhaust pipe disposed on the other side of the engine with respect to the vehicle widthwise direction and connected with an exhaust port of the cylinder unit; an oxygen sensor fitted to the exhaust pipe; and a shield configured to prevent muddy water, which is swirled by the cooling fan, from depending on the exhaust pipe.

A modular system for muffler production and assembly allows various muffler designs to be produced from a common set of components. In particular, modular stamped muffler housing components, including two endcap designs and an intermediate body component design, can be assembled in various ways to produce muffler shells of varying length and configuration, while also ensuring high performance of the finished product. Additional components, such as crossover tubes, baffles and manifold pipes, may be integrated into a particular muffler design upon final assembly.

The disclosed technology relates to features provided on a lawn care vehicle. One of the features relates a spring tension assembly incorporated into a deck lift assembly. The spring tension assembly includes a spring body having a plurality of coils along a longitudinal axis between a first end and a second end. The second end of the spring body is configured to define a female threaded portion, which is threadedly engaged by a threaded fastener. Another feature relates to a lawn care vehicle hood assembly that can be assembled in a substantially tool-less manner. Another feature relates to a muffler assembly including a muffler body and a muffler shield assembly having a first wall positioned adjacent a first side of the muffler body and a second wall positioned adjacent a second side of the muffler body.

An aircraft engine incudes: a catalyst, e.g. platinum, applied to turbine blades (580c, 590c) and/or to a catalytic grid downstream of the engine's combustion chamber. An exhaust fluid additive injection system is incorporated upstream of the catalyst via a line 560, in a stator blade within the engine. The catalyst is used to reduce NOx emissions from the engine by a Selective Catalytic Reduction reaction.

Mufflers with unique configurations which, in certain (but not all) embodiments, improve engine performance. In other embodiments, improved manufacturing processes and methods for making mufflers. In particularly preferred embodiments, methods for making motorcycle mufflers with swaging techniques. In still other preferred embodiments, swaged motorcycle mufflers with improved exhaust flow. In still other embodiments, aftermarket mufflers which can be assembled to a variety of engine exhaust systems utilizing a universal coupler.

A turbocharger and method of controlling the same includes a turbine housing comprising an inlet and an outlet, turbine wheel coupled to a shaft. The turbine housing comprising a first scroll and a second scroll for fluidically coupling the inlet and the turbine wheel. The first scroll has a first end adjacent the inlet and a second end adjacent the turbine wheel. The second scroll has a third end adjacent the inlet and a fourth end adjacent the turbine wheel. An exhaust gas diverter valve is coupled to the turbine housing restricting flow into the first scroll or the second scroll.

A muffler (40) devised particularly for use with an engine of the type used on unmanned aerial vehicles (UAVs), and a UAV (10) having an engine (30) fitted with the muffler (40). The muffler (40) comprises a body (51) having an interior chamber (60). The muffler body (51) has a first end section (53) and a second end section (55). The first end section (51) is adapted for mounting onto the engine (31) by way of a first mount (81), with the interior chamber (60) in communication with an exhaust outlet of the engine (31) to receive exhaust flow therefrom. The second end section (53) is adapted to be mounted by way of a second mount (82) in a manner resisting movement with respect to the engine (31). In one arrangement, the second mount (82) is configured to yieldingly resist movement with respect to the engine (30). In another arrangement, the second mount (82) is configured to mount the second end section (55) under a preload resisting movement of the second end section with respect to the engine (30).

A duct interface system and method includes a duct having a first end and a second end; a first receptacle for the first end of the duct and/or a second receptacle for the second end of the duct; and one or more first seals between the first end of the duct and the first receptacle and/or one or more second seals between the second end of the duct and the second receptacle.

A snowmobile includes a frame, at least one ski, handbars operatively coupled to the at least one ski, and an engine assembly comprising an engine and an exhaust manifold. The exhaust manifold includes at least a first inlet, a first outlet, and a second outlet. The first inlet is configured to connect to a first exhaust port. The first outlet is connected to provide exhaust received from the first inlet to a first exhaust path and the second outlet is connected to provide exhaust received from the first inlet to a second exhaust path.