33results about How to "Reduce reciprocating inertia force" patented technology

A vibration damping structure for motorcycle engine is provided. A piston is connected with a small end of a connecting rod through a piston pin, the big end of the connecting rod is arranged between a left crank and a right crank through a crack pin, a left crack shaft bearing is arranged on the left crank, a right crank shaft bearing and a balancing driving gear are sequentially arranged on theright crank, the balancing driving gear is engaged with an balancing driven gear disposed at the right end of a balancing shaft, a second balancing block is equipped in the middle (deviation to the right) position of a first balancing block, the opposite faces of the shank portion of the left and right crank are symmetrically opened with two notches, and when the balancing shaft rotates, the second balancing block can pass through between the two notches of the shank portion of the left and right crank. The invention can effectively balance the reciprocating inertial force generated when the large-discharge amount motorcycle engine running, so as to essentially improve the engine vibration, improve the usage comfort, service life and reliability of the motorcycle. The invention can be arranged with no need to change the structure of crank shaft case, so as to effectively reduce the manufacturing cost of the entire motorcycle.

The invention discloses a pressurizing oil-saving type piston of a diesel engine, which comprises a piston pin boss, a skirt portion and a head portion, wherein the head portion is composed of a piston top end and a ring groove, the ratio of the total height of the piston to the cylinder diameter is from 1.024 to 1.028, the ratio of the height of a piston junk to the cylinder diameter is from 12.6% to 12.8%, and the largest point gap between the head portion of the piston and the inner diameter of the cylinder is 2.2mm. A top end combustion chamber in a shape of a w-shaped pit is arranged at the head portion of the piston, a cooling oil cavity composed of a cooling oil channel, an oil inlet hole and an oil outlet hole is arranged in the head portion of the piston below the top end combustion chamber, and the oil inlet hole and the oil outlet hole are located at two ends of the cooling oil channel and communicated with a cavity inside the piston. The skirt portion is a variable elliptic type surface with the middle portion protruding outwards and both the ellipticity and the diameter variable. The pressurizing oil-saving type piston of the diesel engine can reduce inertia force of reciprocating movement, friction contact area and invalid friction work loss and can reduce clearance of cylinder matching by means of optimizing piston structure, and achieve the purposes of improving valid power and reducing consumption of fuel oil and lubricating oil and environment pollution.

The invention discloses a rotary type compressor which comprises a shell (1), a cylinder body (2), a rotor (3), a sliding plate (4) and an exhaust valve (7), wherein an air suction hole (6) and an exhaust hole (8) are arranged on the shell (1), rotating central axes of the cylinder body (2) and the rotor (3) are offset into a state that the outer circumferential surface of the rotor (3) is tangential with the inner circumferential surface of the cylinder body (2), the head of the sliding plate (4) is embedded into a cylinder of the cylinder body (2), the main body of the sliding plate (4) extends into a sliding plate groove of the rotor (3), the exhaust valve (7) is arranged on the outer circumference of the rotor (3) and the front of the rotating direction of the sliding plate (4), a cylinder body air inlet (12) which is positioned at the rear of the rotating direction of the sliding plate (4) is arranged on the cylinder body (2), and the sliding plate (4) and an internally tangent point are used for dividing crescent working volume between the inner circumferential surface of the cylinder body (2) and the outer circumferential surface of the rotor (3) into an air inlet cavity and an exhaust cavity.

The present invention provides a variable compression ratio mechanism, which includes sliding a piston disposed in the engine block, rotating a crankshaft disposed in the engine block and an eccentric shaft with an eccentric wheel, and rotating a crankpin disposed in the crankshaft the adjusting connecting rod, and the executing connecting rod and the driving connecting rod hinged at both ends of the adjusting connecting rod and respectively hinged with the piston and the eccentric wheel; The swing angle of the actuator link is set to be lower than 30°, and the swing angle of the drive link is set to be less than 27° with the eccentric wheel as the swing center. The variable compression ratio mechanism of the present invention can reduce the friction loss and reciprocating inertial force of the connecting rod by limiting the swing angle of the connecting rod during operation, thereby reducing the wear of the connecting rod.

The invention discloses a crank-round slider mechanism, which comprises round sliders, a reciprocating component, a crank shaft and a machine frame, wherein the crank shaft comprises cranks positioned at two ends and main journals positioned between the two cranks; the cranks and the main journals have a common rotating shaft which is a crank rotating shaft; two coaxial crank pins extend out fromtwo ends of the main journal respectively to the end faces of the two cranks, which face the main journals; the distance between the axes of the two crank pin and the crank rotating shaft is e; the round slider is provided with an eccentric round hole; two round sliders having a phase difference of 180 degrees and fixed together are sleeved on each crank pin and the two round sliders of adjacent main journals have the same phase; the reciprocating component is arranged in a guide rail on the machine frame; each round slider can be rotationally arranged in a round slider accommodating hole of the reciprocating component; the guide rails of the reciprocating component corresponding to the round sliders with the same phase are arranged in parallel; and the guide rails of the reciprocating component corresponding to the round sliders with the phase difference of 180 degrees are vertical to each other. The mechanism of the invention can improve the bending resistance and deformation resistance of the crank shaft so that the stability of the mechanism is effectively improved. The invention also provides the crank shaft of the crank-round slider mechanism and equipment using the mechanism.

The invention discloses a crankshaft of a gasoline engine, which comprises a main journal and crank arms arranged at intervals in sequence on the main journal, and a connecting rod journal connected with the crank arm is provided with a weight-reducing through hole, and the weight-reducing through hole is smooth in the radial direction Transitional semicircular opening, the semicircular opening is located between the axial level of the connecting rod journal and the top of the connecting rod journal, and the flat bottom of the semicircular opening is close to the axial level of the connecting rod journal and at a distance from it The first wall thickness, the arc top of the semicircular opening is close to the outer edge of the top of the connecting rod journal and has a second wall thickness therefrom. The invention achieves the purpose of reducing the weight of the crankshaft, improving the balance rate of the crankshaft and reducing the oil consumption of the engine by designing the through hole for reducing the weight of the journal of the traditional crankshaft connecting rod.

The invention relates to a gasoline engine, which comprises a piston, a combustion chamber and a fuel-oil supplying system, wherein the piston is formed by a piston top, a head, a pin seat and a skirt, wherein the ratio of the height of the skirt to the total height formed by the head and the skirt is 0.6 to 0.7, and the ratio of the chord length of the projection of the molded line of the skirt on a plane on the piston top to the diameter of a cylinder is 0.5 to 0.6; the combustion chamber is hemispheric and is jointly formed by a cylinder head, the piston top, a cylinder-head gasket and one part of a box body, and the surface-to-volume ratio delta of the combustion chamber is 0.15 to 0.25; the fuel-oil supplying system comprises a gasoline pump, a ventilating pipe and a negative-pressure pipe, wherein a negative-pressure impulse-type gasoline pump is adopted as the gasoline pump, the ventilating pipe is arranged on a cylinder head cover, one end of the negative-pressure pipe is connected with the ventilating pipe of the cylinder head cover, and the other end of the negative-pressure pipe is connected with the negative-pressure impulse-type gasoline pump. Through the improvement on structures, such as the piston, a connecting rod, a rocker and the like, the frictional work is reduced, and therefore the mechanical efficiency of the gasoline engine is greatly enhanced.

The energy-saving piston used for gas engines solves the technical problem of heavy piston weight in the prior art. The technical solution adopted is to include piston top surface, piston combustion chamber, piston head, piston ring groove, piston skirt, and The wedge-shaped pin seat, the piston pin hole with the snap ring groove, and the piston pin set in the inner cavity of the piston, the key is: the ratio of the height to the outer diameter of the piston is (1~1.035): 1, and the The piston pin includes the outer circle of the piston pin, the inner hole of the piston pin, and the tapered surface set in the inner hole of the piston pin. The ratio of the length of the piston pin to the diameter of the outer circle of the piston pin is (1.96~2.05): 1. , especially for the T6114ZLQ gas engine with a working cylinder diameter of 114mm, a cylinder number of 6 cylinders, and a displacement of 8L or 9L. The purpose of consumption, energy saving, pollution and emission reduction.