Piston reciprocating double-cylinder engine

Abstract

The invention discloses a piston reciprocating double-cylinder engine which is formed by paralleling L-shaped engine double cylinders, and the declared speeds of a left crankshaft (1) and a right crankshaft (2) are the same and equal to the declared speed of an existing engine; the declared speed of an output shaft (2) is the declared speed output by the engine to the outside and can be equal to, smaller than or larger than the declared speeds of the crankshafts according to the requirements of the outside; thus, the working property is optimized, the application range of the engine is enlarged, auxiliary devices additionally arranged among devices are omitted or simplified, and the cost of occupied by the auxiliary devices and the device bearing and assembly spaces are saved; meanwhile, the piston reciprocating double-cylinder engine has the advantages that the structures of the L-shaped engine double cylinders and the crankshafts are simple, the manufacturing cost is low, stability is high, the low-speed torque characteristic is good, and the total length of the V-shaped engine is small, so that the space is saved, and arrangement is facilitated; and the disadvantages that a V-shaped engine is complex in structure, high in manufacturing cost and difficult to maintain and repair, and an L-shaped engine is long, so that arrangement is difficult are overcome.

Description

technical field [0001] The invention belongs to the field of internal combustion engines, in particular to a piston reciprocating twin-cylinder engine. Background technique [0002] The existing V-type twin-cylinder parallel engine, with parallel twin-cylinders as a row, can reduce the engine length, compact size, save space and facilitate layout when the number of cylinders needs to be increased, compared with the L-type engine. Cylinder and crankshaft have complex structure and high cost, which is not conducive to maintenance and repair, especially the V10 needs to invest a lot of energy and money to ensure its stability. In addition, the rated speed of the engine is single, which makes it difficult to achieve the requirements of low speed and high torque, so it is necessary to add auxiliary devices To overcome it, so the expenditure of funds is increased, and the load and space of the equipment are taken up, which increases its complexity. Contents of the invention [...

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Problems solved by technology

[0002] The existing V-type twin-cylinder parallel engine, with parallel twin-cylinders as a row, can reduce the engine length, compact size, save space and facilitate layout when the number of cylinders needs to be increased, compared with the L-type engine. Cylinder and crankshaft have complex structure and high cost, which is not conducive to maintenance and repair, especially the V10 needs to invest a lot of energy and money to ensure its stability. In addition, the rated speed of the engine is single, which makes it difficult to achieve the requirements of low speed and high torque, so it is necessary to add auxiliary devices To overcome, it increases the expenditure of funds, and takes up the load and space of the equipment, increasing its complexity

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