Motorboat power engine modified by using K14B engine and modification method

Abstract

The invention discloses a motorboat power engine modified by using a K14B engine and a modification method. The motorboat power engine comprises an engine body, a crank-link mechanism, a valve actuating mechanism, a lubricating mechanism, a fuel supply mechanism, a cooling mechanism, a starting mechanism, an ignition mechanism and a silencer, wherein a distance between the shaft centre of the crank-link mechanism and the bottom of an oil sump, namely, an output shaft centre distance, is shorter than 140mm; and an engine oil filter of the lubricating mechanism faces a part behind flywheels. As the height of the oil sump is reduced, the mounting direction of the engine oil filter is changed, horizontal intake manifolds are adopted to reduce the height of transverse intake manifolds, a water-cooled exhaust pipe is adopted and is in water-cooled flexible connection with the silencer, and speed drive is changed into direct drive, the K14B engine can be well arranged on a motorboat. The motorboat power engine can serve as a floating power device of the motorboat.

Description

technical field [0001] The invention relates to a piston type internal combustion engine, in particular to a motorboat power engine refitted from a K14B engine and a refitting method thereof. Background technique [0002] The current engine consists of the following components: [0003] 1. Body - cylinder block, cylinder head, oil pan and various end covers. [0004] Function: It is the installation basis of various mechanisms and systems of the engine, and many parts of itself are components of various mechanisms and systems. [0005] 2. Crank and connecting rod mechanism - crankshaft, connecting rod, copper sleeve of connecting rod, piston, piston ring, connecting rod bearing, crankshaft bearing, flywheel, crankshaft timing gear, damping pulley. [0006] Function: The pressure generated by the combustion of fuel in the cylinder pushes the piston, converts heat energy into kinetic energy, and converts the linear reciprocating motion of the piston into the rotational motio...

AI Technical Summary

Problems solved by technology

[0022] 3. The exhaust pipe of the K14B engine in the sealed cabin may cause the motorboat to spontaneously ignite due to the high-temperature gas discharged.

[0023] 4. Since the K14B engine has a variable speed drive, when driving, it first changes from slow speed to fast speed, so that the engine cannot directly increase the speed on the motorboat

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