CN201236743Y - Split-type engine with coaxial gas cylinders - Google Patents

Abstract

The utility model provides an air cylinder coaxial dichotomy engine, which is characterized in that the air cylinder unit has a coaxial, split and oppositely arranged two-cylinder structure, wherein, the two cylinders are a working cylinder and a pressure cylinder which are respectively arranged at the two ends of the same connecting rod; the compressed gas output port of the pressure cylinder and the working accommodating chamber are in gas-circuit communication through a circumscribed gas circuit; at least two air cylinder units are in transverse distribution with the mutual parallel between the connecting rods thereof; a rack and pinion drive structure is arranged between the connecting rods which are parallel to each other; the rack and pinion drive structure which is a multi-cylinder ganged structure has the characteristics that the connecting rods are designed to be toothed rack type connecting rods; a transmission shaft is designed to be a gear shaft; the toothed rack type connecting rods of two adjacent air cylinder units are meshed with the gear of the transmission shaft together; and the gear of the transmission shaft and the two adjacent air cylinder units are in H-shaped distribution. The dichotomy engine has the advantages of good dynamic property, high power per liter, small density, large low-speed running torque, economical efficiency, oil-saving effect, and good tail gas emission quality.

Description

Cylinder coaxial two fraction motors

Technical field

The utility model relates to motor, the explosive motor of more specifically saying so.

Background technique

Be made of the reciprocating-piston engine of power transmission mechanism has used for a long time connecting rod, bent axle etc.Along with demands of social development, consider from energy shortage, environmental pollution and ecological balance aspect that particularly the problem that the crankshaft-link rod power transmission mechanism exists is outstanding day by day.The utilization of first heating power is poor, and mechanical efficiency is low.As everyone knows, the power that size and Orientation is determined depends on the position of this line of action of force to the effect that object produced.In bent axle, connecting rod transfer mechanism, by the combustion expansion pressure that piston spreads out of, its line of action is by the gyration center of bent axle, rather than acts on the solid of rotation tangent line.Well imagine that this is irrational, uneconomic for requiring for the motor of moment of torsion output.Especially expand the initial stage, by the thermal procession requirement, this moment, the speed of piston should be fast as far as possible, and bent axle is done circular motion near being positioned at top dead center, causing the swelling pressure 80% to become destructive mechanical load acts on casing wall and the bent axle, not only transmission efficiency is low, but also seriously influences the life-span and the use of motor.Its two, thermal procession exists the contradiction that is difficult to overcome to the requirement of mechanism and the compactedness of configuration, should adopt the little firing chamber of surface to volume ratio, and enough compression ratios are arranged again, then must have thin and tall cavity volume to realize.And in crankshaft-link rod transmitting set motor, piston moves in thin and tall cavity volume, if the distance between bent axle and the cylinder is very near, connecting rod swing is restricted, and then motor can not turn round.Will realize running undoubtedly, then bent axle must be away from cylinder block, and so not only big but also stupid structure was not suitable for automotive field.Its three because the reciprocation mass reciprocal inertia force and the moment that cause can not obtain balance completely.When rotating speed increased, unbalanced force and moment sharply increased, thereby the bearing of motor and the stress of other parts are significantly increased, and the vibration and the noise of motor further worsen, and the raising of engine speed and power is very restricted.

The model utility content

The utility model is for avoiding above-mentioned existing in prior technology deficiency, provides a kind of good dynamic property, power per liter is big, specific mass is little, low speed torque is big, economy is fuel-efficient, the cylinder coaxial of exhaust emissions quality better two fraction motors.

The utility model technical solution problem adopts following technological scheme:

The structural feature of the utility model cylinder coaxial two fraction motors is:

The two cylinder structure that a piston-cylinder unit is set is coaxial, split and be oppositely arranged, described two cylinders are for dividing clutch release slave cylinder and the pressurized cylinder that is in same connecting rod two ends; Forming gas circuit by external gas circuit between the pressurized gas output port of described pressurized cylinder and the work cavity volume of clutch release slave cylinder communicates;

At least two piston-cylinder units are transversely arranged with being parallel to each other between its connecting rod;

Between the described connecting rod that is parallel to each other, the gear rack drive mechanism is set, described gear rack drive mechanism is that described connecting rod is set is the rack-type connecting rod, transmission shaft is a gear shaft, the rack-type connecting rod of adjacent two piston-cylinder units is meshed with shaft gear jointly, with described shaft gear and two adjacent multi-cylinder linkage structures that piston-cylinder units formation " H " shape is arranged.

Compared with the prior art, the utility model beneficial effect is embodied in:

1, the utility model is by changing the pressure line of action position of combustion gas, making the swelling pressure that burning produces directly with the mode work done of moment, and to keep the gyration center of swelling pressure line of action of force and output shaft that a value is arranged be the constant arm of force of constant.Thereby the moment of torsion of motor is big, acceleration good, efficiency of transmission is high.

2, the utility model adopts the multi-cylinder interlock, and rack and pinion no impact load in the commutation motion is produced.

3, the utility model is divided into two the thin and tall cavity volume of the required setting of motor, has solved configuration compactedness and the thermal procession contradiction to existing between mechanism's requirement, and whole motor volume is little, in light weight, power per liter is big, oil consumption is low thereby make.

4, the utility model can adopt the form of two valves, one gas port at gas distribution system, and in exhaust, fresh air enters cylinder from the gas port spiral and carries out scavenging, and what drain in the scavenging process is pure air; Etc. after the exhaust valve closure again by pressurized cylinder to work in-cylinder injection mixed gas, this structure has been saved fuel oil, has prevented the pollution of mixed gas scavenging cause to atmosphere simultaneously.

5, simple in structure, the symmetrical arrangement of the utility model, vibration is little, the component manufacturing is simple, manufacture cost also reduces greatly.

Description of drawings

Fig. 1 the utility model structural representation.

Fig. 2 is the utility model driving mechanism structural representation.

Number in the figure: 11 left clutch release slave cylinders, 12 right clutch release slave cylinders, 21 left pressurized cylinders, 22 right pressurized cylinders, 31 left connecting rods, 32 right connecting rods, 4 shaft gears, 5 another shaft gears, 61 one-way clutch gears, 62 another one-way clutch gears, 7 output gears.

Below by embodiment, the utility model is described in further detail in conjunction with the accompanying drawings.

Embodiment

Referring to Fig. 1, Fig. 2, the two cylinder structure that a piston-cylinder unit is set is coaxial, split and be oppositely arranged, two cylinders are for dividing clutch release slave cylinder and the pressurized cylinder that is in same connecting rod two ends; Forming gas circuit by external gas circuit between the pressurized gas output port of pressurized cylinder and the work cavity volume of clutch release slave cylinder communicates;

Shown in Figure 1, in the present embodiment, two piston-cylinder units about being provided with are transversely arranged with being parallel to each other of 32 of its left connecting rod 31 and right connecting rods;

The gear rack drive mechanism is set between the connecting rod that is parallel to each other, the gear rack drive mechanism is left connecting rod 31 and right connecting rod 32 to be set be the rack-type connecting rod, transmission shaft is a gear shaft, the left connecting rod 31 that is parallel to each other of two piston-cylinder units and right connecting rod 32 are meshed with shaft gear 4 jointly, with shaft gear 4 and two adjacent two cylinder linkage structures that piston-cylinder units formation " H " shape is arranged;

When combusted gas generant pressure promotes the descent of piston of left clutch release slave cylinder 11, left connecting rod 31 drives left pressurized cylinder 21 and calms the anger, and drives shaft gear 4 respectively and rotate, and at this moment, shaft gear 4 drives unidirectional output shaft and rotates; It is up that shaft gear 4 drives right connecting rod 32 simultaneously, and the right clutch release slave cylinder 12 of enforcement is made drawback movement on the right connecting rod 32, right pressurized cylinder is air-breathing.This process moves in circles, and makes unidirectional output shaft realize power output by driving mechanism.

As shown in Figure 1 and Figure 2, in concrete the enforcement, setting by left connecting rod 31 drive, with another shaft gears 5 of shaft gear 4 direction of rotation, shaft gear 4 and another shaft gear 5 are positive gear, axle head at shaft gear 4 and another shaft gear 5 is provided with one-way clutch gear 61 and another one-way clutch gear 62 respectively, output gear 7 forms one-way rotation output between two one-way clutch gears 6.

When shaft gear 4 rotated counterclockwise, another shaft gear 5 clockwise rotated, and clockwise rotated output by one-way clutch gear 61 unidirectional drive output gears 7, and another one-way clutch gear 62 is with output gear 7 idle running; When shaft gear 4 clockwise rotates, another shaft gear 5 rotates counterclockwise, by another one-way clutch gear 62 unidirectional drive output gears 7 equally by clockwise rotating, one-way clutch gear 61 dallies with output gear 7 because of its one-way clutch, realizes one-way rotation output of output gear 7 with this.

Claims (1)

1, cylinder coaxial two fraction motors is characterized in that:

The two cylinder structure that a piston-cylinder unit is set is coaxial, split and be oppositely arranged, described two cylinders are for dividing clutch release slave cylinder and the pressurized cylinder that is in same connecting rod two ends; Forming gas circuit by external gas circuit between the pressurized gas output port of described pressurized cylinder and the work cavity volume of clutch release slave cylinder communicates;

At least two piston-cylinder units are transversely arranged with being parallel to each other between its connecting rod;

Between the described connecting rod that is parallel to each other, the gear rack drive mechanism is set, described gear rack drive mechanism is that described connecting rod is set is the rack-type connecting rod, transmission shaft is a gear shaft, the rack-type connecting rod of adjacent two piston-cylinder units is meshed with shaft gear jointly, with described shaft gear and two adjacent multi-cylinder linkage structures that piston-cylinder units formation " H " shape is arranged.

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