Double-acting piston compressor guided by a roller and driven by a gearwheel and racks

Abstract

The double-acting piston compressor (1) according to the present invention includes at least one cylinder (3) in which a double-acting piston (4) moves; said cylinder (3) and said piston (4) together define an upper chamber (5) and a lower chamber (6) each provided with at least one inlet port (7) and one delivery port (8), and each port comprises at least one valve (90, 91), and one link rod (10) connecting the double-acting piston (4) to a transmission member (11) engaging with a guide roller (12), on the one hand, and a gearwheel (15) on the other hand, at least one anchoring member (22) engages with the gearwheel (15); a connecting rod (25), to which the gearwheel (15) is pivotably connected by means of a pin (26) of said connecting rod (25), is connected to the crank (28) of a crankshaft (27) housed in bearings provided in the compressor housing (2).

Description

technical field [0001] The invention relates to a double-acting piston compressor, the piston of which is guided by rollers and driven by a pinion and rack. Background technique [0002] Reciprocating piston compressors generally have single-acting pistons driven by a connecting rod-crank assembly similar to that used in reciprocating internal combustion engines, however, some reciprocating piston compressors will have one or more double-acting pistons . [0003] Such cylinders and pistons together define upper and lower chambers, said piston having a lower rod which transmits its translational motion to the piston and contributes to its orientation, said lower rod itself being connected to a crosshead or A barrel piston that provides translational guidance to the lower rod and connects the lower rod to the linkage via a pivot joint. [0004] Double-acting piston compressors offer excellent, very high efficiency because the gas is sucked in and discharged simultaneously by...

AI Technical Summary

Problems solved by technology

[0010] In contrast, the disadvantages of turbocompressors or turbochargers are the response time which is annoying to the driver, the inability to produce high torque in the whole speed range when several turbochargers are not provided, and the extreme sensitivity to the temperature of the exhaust gases , the temperature should not exceed the limit allowed by the turbine

[0011] Another disadvantage of turbocompressors is the increase in exhaust back pressure, which limits the possibility of eliminating charge in the combustion chamber of the engine and also complicates the design and development of exhaust gas recirculation devices

[0012] In addition, another disadvantage of turbocompressors is the insertion of the turbine and its housing between the engine exhaust and the catalytic converter that after-treats the pollutants generated by the engine, this insertion causes said catalytic converter to heat up slower so that its ignition time grows

[0013] Supercharging a reciprocating internal combustion engine using a double-acting piston compressor would be advantageous in many ways, although no one has done so today

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