RU94045601A - Piston machine - Google Patents

Abstract

FIELD: mechanical engineering; piston displacement machines; internal combustion engines, compressors and other machines. SUBSTANCE: power no-connecting rod mechanism of known design has additional spool type distributing device whose shaft is coupled with crank pin by means of carrier. Piston machine operates as follows: working medium is pressure-fed through open slot of hollow shaft of spool along pipeline into working space between cylinder wall and piston, making the piston move to center. Slider, coupled with pistons, acts onto pin which is already set into motion under action of pistons of other pair of cylinders. These motions, being added up, cause rotation of disk and output shaft. During piston stroke, pin turns spool shaft through 180 degrees by means of carrier, pipeline gets overlapped. Other pipeline opens and piston is exposed to pressure of working medium passing along pipeline making slider move backwards following continuous movement of pin over circumference. Other pair of cylinders operates in the similar manner, but with 90 degrees shift to provide passing over dead centers. EFFECT: reduced loads, improved operating conditions of mechanism when used on multicylinder engine owing to synchronization of cylinder operation.

Claims (1)

The invention relates to mechanical engineering, namely to piston volumetric machines, and can be used in internal combustion engines, compressors and other machines. The aim of the invention is to reduce loads and improve the mechanism in its use in a multi-cylinder engine by introducing the synchronization of the cylinders. The essence of the invention is that the known power rodless mechanism further comprises a spool distribution device, the shaft of which is connected by means of a carrier with a crank pin. The piston machine operates as follows. The working fluid through the open groove of the hollow spool shaft through the pipeline under pressure enters the working cavity between the cylinder wall and the piston, forcing the piston to move to the center. The slider associated with the pistons acts on the finger, already in motion under the influence of the pistons of another pair of cylinders. The addition of these movements leads to the rotation of the disk and the output shaft. During the piston stroke, the finger rotates the spool shaft through 180 ^o by means of the carrier, the pipeline is closed, the pipeline opens and the piston already experiences the pressure of the working fluid moving through the pipeline, forcing the slider to move back, continuing to move the finger in a circle. Another pair of cylinders works exactly the same with a shift of 90 ^o , ensuring the passage of blind spots.