초록 ▼

A supercharged multi-cylinder piston engine includes an elongate air inlet manifold and multiple heat transfer elements located in the interior space of the air inlet manifold. The heat transfer elements extend individually over different respective length segments of the interior space of the manif

A supercharged multi-cylinder piston engine includes an elongate air inlet manifold and multiple heat transfer elements located in the interior space of the air inlet manifold. The heat transfer elements extend individually over different respective length segments of the interior space of the manifold and extend collectively over substantially the entire length of the interior space of the manifold.

대표청구항 ▼

1. A multi-cylinder piston engine comprising:a supercharger apparatus, an elongate air inlet manifold having first and second longitudinally opposite ends and defining an elongate interior space, an elongate guide structure located within the air inlet manifold, a feed air duct connecting the superc

1. A multi-cylinder piston engine comprising:a supercharger apparatus, an elongate air inlet manifold having first and second longitudinally opposite ends and defining an elongate interior space, an elongate guide structure located within the air inlet manifold, a feed air duct connecting the supercharger apparatus with the air inlet manifold at the first longitudinal end thereof, connecting ducts connecting the air inlet manifold to the cylinders respectively, at least two heat transfer elements located in the interior space of the air inlet manifold and supported by the elongate guide structure in a manner allowing movement of the heat transfer elements longitudinally of the air inlet manifold, the heat transfer elements extending individually over different respective length segments of said interior space and extending colletively over substantially the entire length of said interior space, ducting defining a heat transfer circuit, and fittings connected to the ducting and releasably engaged with at least one heat transfer element for connecting said one heat transfer element to the heat transfer circuit. 2. A multi-cylinder piston engine according to claim 1, wherein the multiple cylinders are arranged inline, the air inlet manifold extends over substantially the entire length of the cylinder line, and the heat transfer elements divide the air inlet manifold into an upstream part connected to the feed air duct and a downstream part connected to the connecting ducts.3. A multi-cylinder piston engine according to claim 1, wherein the heat transfer elements include heat transfer elements that are located at opposite respective ends of the air inlet manifold and of different heat transfer efficiency.4. A multi-cylinder piston engine according to claim 1, wherein the heat transfer elements include heat transfer elements that are located at opposite respective ends of the air inlet manifold and are of different air side flow resistance.5. A multi-cylinder piston engine according to claim 1, wherein the heat transfer elements include heat transfer elements that are located at opposite respective ends of the air inlet manifold and are of different heat transfer efficiency and of different air side flow resistance.6. A multi-cylinder piston engine according to claim 1, wherein the elongate guide structure extends over substantially the entire length of the air inlet manifold, and wherein the heat transfer elements are engaged with the guide structure in a manner allowing controlled and guided movement of the heat transfer elements lengthwise of the air inlet manifold.7. A multi-cylinder piston engine according to claim 6, wherein the air inlet manifold has a removable end cap at one end allowing access to the heat transfer elements, whereby a heat transfer element insertable is into the air inlet manifold by way of said one end thereof and moved along the air inlet manifold, guided by the guide structure, to an operating position.8. A multi-cylinder piston engine according to claim 6, wherein the guide structure comprises two guide members extending lengthwise of the air inlet manifold and each heat transfer element comprises two counter members for engaging the guide members respectively, whereby cooperation of the counter members and the guide members allows guided movement of the heat transfer element lengthwise of the air inlet manifold.9. A multi-cylinder piston engine according to claim 1, wherein each heat transfer element is composed of a first part that bounds an upstream part of said interior space and a second part that bounds a downstream part of said interior space, and wherein the first and second parts of the heat transfer element include two duct segments for connection to respective heat transfer circuits.10. A multi-cylinder piston engine according to claim 1, wherein each heat transfer element comprises flow circuit fittings which are detachable from the heat transfer element to allow movement thereof lengthwise of the air inlet manifold.11. A multi-cylinder piston engine according to claim 1, wherein the ducting defines first and second heat transfer circuits, each heat transfer element is composed of a first part that bounds an upstream part of said interior space and a second part that bounds a downstream part of said interior space, and the first and second parts of the heat transfer element include two duct segments connected to the first and second heat transfer circuits respectively.12. A multi-cylinder piston engine according to claim 11, wherein the first and second heat transfer circuits each include a flow duct and a return duct, and the fittings include at least two fittings connected to the flow and return ducts respectively of the first heat transfer circuit and releasably engaged with the first part of the heat transfer element and at least two fittings connected to the flow and return ducts respectively of the second heat transfer circuit and releasably engaged with the second part of the heat transfer element.13. A multi-cylinder piston engine according to claim 1, wherein the ducting includes a flow duct and a return duct, and the fittings include at least two fittings connected to the flow duct and releasably engaged with the heat transfer elements respectively and at least two fittings connected to the return duct and releasably engaged with the heat transfer elements respectively, whereby the heat transfer elements are connected in parallel between the flow duct and the return duct.14. A multi-cylinder piston engine according to claim 1, wherein the heat transfer elements divide the air inlet manifold into an upstream part connected to the feed air duct and a downstream part connected to the connecting ducts and the connecting ducts are spaced apart lengthwise of the air inlet manifold.15. A multi-cylinder piston engine according to claim 1, wherein each heat transfer element has two opposite ends and the heat transfer elements are located in the interior space of the air inlet manifold in end-to-end relationship.