CN1066238C - Reciprocating intermittent piston engine - Google Patents

Abstract

The present invention relates to a reciprocating intermittent piston engine which comprises an engine body, a crank roller, a piston body provided with a cam slot and a lug boss, a cylinder body, an air ingress and exhaust mechanism, an ignition or oil injection mechanism, etc. The utility model avoids a reciprocating low-velocity zone where sinusoidal reciprocating swivel motion is not suitable for heat expansion by rolling of the crank roller in the cam slot of the piston body. Therefore, reciprocation is intermittent in the low-velocity zone and becomes discontinuous operation, and explosive expansion directly begins from a high-velocity zone. The engine expands and does work in time. The present invention has nondetonating explosion with high energy and can obtain power output with high torque, low heat dissipation and high economy. The present invention is widely used as various power.

Description

Reciprocating intermittent piston engine

The present invention relates to a kind of no bent axle connection rod-free reciprocating and bring back to life piston engine.

Traditional crankshaft-link rod motor is simple and reliable for structure because of having, the slick and sly steady advantage of work, uses till today always.But its reciprocating rotating characteristics of motion is all according to the positive arc regular movement, this makes its extremely thermal expansion work of incompatibility internal-combustion engine, because of internal-combustion engine requires must be transferred to high speed expansion work immediately once outburst, otherwise untimely owing to expand, energy accumulating will bring the pinking of high pressure ratio and thermal radiation, heat leakage.The component loss aspect mechanical switch of sinusoidal regular movement is also bigger simultaneously.During outburst, bent axle is near the dead point, and piston speed is extremely low for this reason, and piston expansion working speed is also extremely low, and outburst can in time utilize for this reason, only just can be utilized behind switching to pressure.Slow owing to expanding again in utilizing process, its elevated temperature heat air pressure thermal radiation, heat leakage is bigger, causes the hurried decline of air pressure, reduces capacity usage ratio.The research worker of motor is seeking new motor always for this reason, to replace the crankshaft-link rod motor.

At present, many kinds of motors have been designed, what have has applied for Chinese patent, as " straight-line motion connecting rod type internal combustion engine " (publication number 1110371A), it is made up of piston, slide block, bent axle, flywheel, cylinder block, crankcase body, gas distribution system etc., piston comes in cylinder body, swivel motion, makes the to-and-fro motion in guide groove of its slide block, rotates along a certain direction to drive bent axle.The main purpose of this application is the lateral force of elimination piston, thereby prolongs the working life of internal-combustion engine, improves the thermal efficiency and mechanism efficiency, reduce vibration and noise, but it can't improve the high temperature speed of expansion when breaking out.

The objective of the invention is the problem that exists at above-mentioned motor, be intended to design a kind of simple and reliable for structure, work is slick and sly steadily, have the no bent axle connection rod-free reciprocating resurrection of the high energy output piston engine of high pressure ratio, high explosive force, high moment of torsion, low heat leakage.

The implementation of the object of the invention is: reciprocating intermittent piston engine comprises body 1, piston, cylinder body 9, intake and exhaust mechanism, igniting or oil spout mechanism.Piston body 12 is loaded in the cylinder body 9.Crank or crank throw roller extend in the cam path 6, along interior line of rabbet joint rolling work, cam path is arranged in the piston body 12, the bearing pin 3 of bent axle is positioned in the cam path 6, and can in cam path, move, cam path two is semi-circle, and radius of arc equals the radius of roller 5, the middle part circular arc is crank or crank throw roller movement locus and roller radius sum, radius R, L is the piston body stroke in the formula, α is the reciprocating start-stop of piston body angle, r is the roller radius, middle part circular arc action h=R-1/2L-r, the line between middle part circular arc two-end-point and semi-circle two-end-point is a diameter, concave circular arc microgap positive stop lug boss 7 in piston body two cam path arm both sides are respectively equipped with.

The present invention is described in detail in detail with reference to the accompanying drawings.

Fig. 1 piston body of the present invention and relevant portion structural representation.

The plan view of Fig. 2 Fig. 1.

Fig. 3 piston body operation dynamic schematic diagram.

With reference to accompanying drawing, the reciprocating rotating mechanism of this motor is made of crank or crank throw roller, piston body, cam path 6 is arranged in the piston body, concave circular arc microgap positive stop lug boss 7 in the two ends arm is provided with, crank or crank throw roller, the piston body cam path the two one of one must be arranged is removable body, be inserted in the cam path to make things convenient for the crank roller, along the rotation of rolling of the interior line of rabbet joint.During engine start, rely on tripping force and drive crank or crank throw roller rotation rolling.When the crank roller is rolled to cam path semi-circle active section, promote the piston body motion of back and forth calming the anger, when compression ratio reaches the setting compression ratio, the crank roller promptly enters into intermittently section of middle part circular arc from the semi-circle active section, promptly back and forth enter into intermittently section by active section, the crank roller this section between moving period the piston body to-and-fro motion stop.The microgap positive stop lug boss 7 that be located at the piston body two ends this moment contacts with the outer rim of crankwheel, the restrained force of piston body boss and crank roller thrust, the two-way microgap locking of common composition has restricted the inertial force that piston body moves, and makes to start the slick and sly smooth running of function.Behind engine flare, the crank roller enters second half circular arc active section, and the piston body cam path is throw crank roller rotation work done, discontinuous operation and so forth again conversely.

Adopt the present invention, because the motor to-and-fro motion only is confined to the high speed operation section operation in the groove, and intermittently stop at low speed segment, escaped the low velocity zone of reciprocating rotating, motor just can directly change the high speed expansion working in high velocity once outburst, owing to expand in time, reduced the gathering of energy, greatly reduce the pinking of high pressure ratio.Can get access to the high economic stimuli output of the high moment of torsion of high energy, low heat leakage.

The indent radius of arc of the microgap positive stop lug boss that piston body two cam path arms are set equals the radius of crankwheel 2, and the distance of itself and piston body central position equals crankwheel radius and piston body 1/2 stroke sum.Piston body 12 can be one, also can be divided into symmetrical two-part, each several part by cam path arm 10 and be stuck in the groove arm insert 11, piston 8, wrist pin, card constitute, cam path arm conjunction plane is provided with locating groove, use Bolt Connection between the cam path arm, two constitute cam path 6 between inserting.The crank roller by overlap 4 in crankwheel 2, bearing pin 3, needle roller or the roller, roller 5, passing shaft form, crank pin hole is arranged on the crankwheel, the crank pin hole hole heart and crankwheel core wheel spacing are R-r, the hot pressing of passing shaft axle head is in crankwheel core wheel hole, cover in roller, the roller, be placed on the bearing pin, be pressed in the crank pin hole in the lump again.The crank throw roller by overlap 4 in crank shaft 2, bearing pin 3, needle roller or the roller, roller 5 forms, and the crank throw pin-and-hole is arranged on the crank shaft, the crank throw pin-and-hole hole heart and crank shaft axle center spacing are R-r, are placed on the bearing pin in roller, the roller, are pressed in the lump in the crank throw pin-and-hole again.

This motor is the same with the crankshaft-link rod motor, divides from fuel, can be used as petrol engine, also can be used as diesel engine; Divide from stroke, can be used for two-stroke, also can be used for four-stroke; Count branch from cylinder, can be used for opposed cylinder, also can be used for the 2n cylinder, the work alternate angle between opposed cylinder can be 60 °, 90 ° or 120 ° etc., and its using scope is the same with the crankshaft-link rod internal-combustion engine to be widely used in various power.

Claims (5)

1, reciprocating intermittent piston engine, comprise body (1), piston, cylinder body (9), intake and exhaust mechanism, igniting or oil spout mechanism, piston body (12) is loaded in the cylinder body (9), crank or crank throw roller extend in the cam path (6), along interior line of rabbet joint rolling work, cam path is arranged in the piston body (12), the bearing pin of bent axle (3) is positioned in the cam path (6), and can in cam path, move, it is characterized in that cam path two is semi-circle, radius of arc equals the radius of roller (5), and the middle part radius of arc is crank or crank throw roller movement locus and roller radius sum, radius $R=\frac{1/2L}{\sin \mathrm{\α}/2}+r,$ L is the piston body stroke in the formula, α is the reciprocating start-stop of piston body angle, r is the roller radius, middle part circular arc action h=R-1/2L-r, line between middle part circular arc two-end-point and semi-circle two-end-point is a straight line, piston body two cam path arm both sides are respectively equipped with interior concave circular arc microgap positive stop lug boss (7), crank or crank throw roller, piston body cam path (6) the two one must be arranged is removable body.

2, motor according to claim 1 is characterized in that microgap positive stop lug boss indent radius of arc equals the crankwheel external diameter, and the distance at itself and piston body center equals crankwheel radius and piston body 1/2 stroke (1/2L) sum.

3, motor according to claim 1, it is characterized in that the crank roller is made up of cover (4), roller (5), passing shaft in crankwheel (2), bearing pin (3), needle roller or the roller, crank pin hole is arranged on the crankwheel, the crank pin hole hole heart and crankwheel core wheel spacing are R, the hot pressing of passing shaft axle head is in crankwheel core wheel hole, cover is placed on the bearing pin in roller, the roller, is pressed in the crank pin hole in the lump again.

4, motor according to claim 1, it is characterized in that the crank throw roller is made up of cover (4), roller (5) in crank shaft (2), bearing pin (3), needle roller or the roller, the crank throw pin-and-hole is arranged on the crank shaft, the crank throw pin-and-hole hole heart and crank shaft axle center spacing are R, be placed on the bearing pin in roller, the roller, be pressed in the lump in the crank throw pin-and-hole again.

5, motor according to claim 1, it is characterized in that piston body (12) can be one, also can be divided into symmetrical two-part, each several part is made of cam path arm (10) and insert (11), piston (8), the wrist pin, the card that are stuck in the groove arm, cam path arm face is provided with locating groove, use Bolt Connection between the cam path arm, two constitute cam path (6) between inserting.

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