CN201696142U

CN201696142U - Rotor engine system

Info

Publication number: CN201696142U
Application number: CN2009201808547U
Authority: CN
Inventors: 袁涛; 曾令鹏; 法德强; 张其燕
Original assignee: SAIC Chery Automobile Co Ltd
Current assignee: Chery New Energy Automobile Technology Co Ltd
Priority date: 2009-11-27
Filing date: 2009-11-27
Publication date: 2011-01-05
Anticipated expiration: 2019-11-27

Abstract

The utility model belongs to the technical field of automobile engines, in particular to a rotor engine system. An engine in the rotor engine system is a rotor engine, and the rotor engine is coaxially connected with a main shaft of the engine. Through the technical scheme, the utility model adopts the rotor engine. Compared with the traditional reciprocating engine, the rotor engine omits a piston and a crank link mechanism, so the rotor engine with the same power has smaller size, fewer parts, lighter weight, smaller vibration, lower noise and better noise, vibration and harshness (NVH) performance of a whole vehicle. Thereby, the rotor engine system in the utility model has compact structure and good motive power performance.

Description

A kind of rotary engine system

Technical field

The utility model belongs to technical field of automobile engine, is specifically related to a kind of rotary engine system.

Background technique

At present, motor car engine adopts Reciprocating engine usually, Reciprocating engine piston when work is done linear reciprocating motion in cylinder, and rotatablely move for the straight line motion of piston is converted into, usually the downside at piston is provided with connecting rod, thereby make that the structure of traditional reciprocating-piston engine system is comparatively complicated, compact inadequately, and volume and weight is also all bigger.

The model utility content

The purpose of this utility model provides a kind of rotary engine system, and its compact structure and power performance are good, has met the light-weighted development trend of mixed power/pure electric automobile simultaneously.

For achieving the above object, the utility model has adopted following technological scheme: a kind of rotary engine system, described motor are rotary engine, and rotary engine links to each other with the main shaft of generator is coaxial.

As shown from the above technical solution, the utility model has adopted rotary engine, compare with traditional Reciprocating engine, rotary engine has been cancelled piston and connecting rod, thereby the rotary engine size of same power is less, component are less, weight is lighter, and vibration and noise are also relatively low, car load noise, vibration and sound vibration roughness NVH (Noise, Vibration, Harshness) performance is more excellent, so rotary engine system compact structure in the utility model and power performance are good.

Description of drawings

Fig. 1 is the structural representation of rotary engine;

Fig. 2 A is the intake process contrast schematic representation of rotary engine and Reciprocating engine;

Fig. 2 B is the compression process contrast schematic representation of rotary engine and Reciprocating engine;

Fig. 2 C is the work done process contrast schematic representation of rotary engine and Reciprocating engine;

Fig. 2 D is the exhaust process contrast schematic representation of rotary engine and Reciprocating engine;

Fig. 3 is rotor generator group system figure;

Fig. 4 is the mixed power/pure electric automobile illustraton of model that installs rotary engine additional.

Embodiment

Shown in Fig. 1～4, a kind of rotary engine system, described motor 10 is a rotary engine, rotary engine links to each other with the main shaft of generator 20 is coaxial.

Further described motor 10 is a rotary polygonal piston engine.

Figure 1 shows that the structural representation of rotary engine.Reciprocating-piston engine and rotary engine all rely on the swelling pressure of air mixing gas firing generation to obtain rotatory force, mechanism's difference of two kinds of motors is to use the mode of the swelling pressure: in reciprocating-piston engine, the swelling pressure that are created in the piston head surface promote piston downwards, then mechanical force is passed to linkage mechanism, and drives the bent axle rotation; And for rotary engine, the PG that makes a concerted effort that the swelling pressure form acts on rotor side surface, thereby one of three faces of triangular rotor are pushed to the center of eccentric shaft, this motion is formed by two component effects, one of them component is the centripetal force Pb that points to the center of output shaft, and another is the tangential force Ft that output shaft is rotated.

Continuation is referring to shown in Fig. 2 A, 2B, 2C, the 2D, and the inner space of rotary piston engine housing (or being called the roulette chamber) always is divided into three working rooms.In the movement process of rotor, the change that the volume of these three working rooms does not stop, in the cycloidal cylinder body, continue to finish air inlet, compression, burning and four processes of exhaust, each process all diverse location in the cycloidal cylinder body is carried out, this obviously is different from reciprocating-piston engine, and four processes of reciprocating-piston engine are all carried out in a cylinder.

By the variation of rotary engine swept volume as can be seen among Fig. 2 A, 2B, 2C, the 2D, and the difference of rotary engine and four-stroke reciprocating-piston engine.Although in rotary engine and reciprocating-piston engine, swept volume of a single chamber all becomes wavy steady change, but exist tangible difference between the two: the rotation angle difference that at first is each process, reciprocating-piston engine rotates 180 degree, and rotary engine is rotated 270 degree, is 1.5 times of reciprocating-piston engine.From another angle, in reciprocating-piston engine, bent axle (output shaft) in four working procedure, take two turns (promptly 720 degree); And in rotary engine, eccentric shaft changes three circles (also being 1080 degree), and rotor turns around.Therefore rotary engine can obtain long process time, and forms the less fluctuation of reversing, thereby makes running more steadily smooth.Secondly, in running up, the rotating speed of rotor is also quite slow, thereby looser air inlet and period of exhaust are arranged, and fresh working medium is mixed more even, for those operations that can obtain the system of higher power performance are provided convenience.

With respect to reciprocating-piston engine, rotary engine has following advantage:

1) little, the in light weight and compact structure of volume

Rotary engine has greatly reduced the volume and weight of motor.Because the swelling pressure that rotary engine is produced the burning of air and fuel mixture are converted into the rotatory force of triangular rotor and eccentric shaft, so do not need to be provided with bar linkage structure, the suction port of rotary engine and relief opening rely on the motion of rotor itself to open and close, therefore do not need distribution device yet, and traditional distribution device comprises the timing cingulum, camshaft; rocking arm; valve; component such as valve spring; and the distribution device configuration that in reciprocating-piston engine, is absolutely necessary; so the volume of rotary engine dwindles significantly, it is very favourable to the power transmission system spatial arrangement of mixed power/pure electric automobile; Under the prerequisite that guarantees identical output power, the design weight of rotary engine is 2/3rds of a reciprocating-piston engine, has met the light-weighted requirement of mixed power/pure electric automobile preferably simultaneously.

2) twisting characteristic is even

According to result of study, rotary engine is quite uniform torque curve in whole speed range, even in the design of two rotors, operating torque ripple also has identical level with the six-in-line reciprocating-piston engine, and the torque ripple of triple-spool then is less than V-type eight cylinder reciprocating piston engines.

3) operation is quieter and noise is littler

For reciprocating-piston engine, piston motion itself is exactly a vibration source, and distribution device also can produce tedious mechanicalness noise simultaneously.The vibration that rotary engine rotational motion is stably produced is quite little, and does not have distribution device, therefore can more steady more quiet operation.

4) reliability height and good endurance

Therefore as previously mentioned, the rotating speed of rotor is 1/3rd of an engine speed, and in rotary engine during with the rotation speed operation of 9000rpm, the rotating speed of rotor only is 3000rpm; In addition because rotary engine high rotary speed movement parts as rocking arm and connecting rod not, therefore in the high load motion, rotary engine reliability height, and more durable when moving.

As preferred version of the present utility model, described generator 20 is a rare earth permanent-magnetic generator.

As shown in Figure 3, described generator 20 by the adverse current transducer be electrically connected with electrical load.

The utility model will replace with the rotor generator pack module with the reciprocating internal combustion unit that electricity is done in the new-energy automobile of all or part of driving, solved the electric hybrid vehicle general arrangement difficulty of present stage oil, can not carry out modular design and noise height, problem such as underpower, shortened the duration of charge of electrokinetic cell, increased distance travelled, even under the situation of battery electric quantity deficiency (such as being lower than below 30%), guarantee that automobile continues to travel, make automobile can arrive charging station or family charging place.Dotted line shown in Fig. 3 representative is electrically connected, shown in solid line represent mechanical connection.

Further, described motor 10 directly drives load operation by driving mechanism.

Described load comprises power steering pump 30, air condition compressor 40, cooling waterpump 50, fan 60 and vacuum pump.

Because the high power performance of rotary engine, engine system can drive other loads such as power steering pump 30, air condition compressor 40, cooling waterpump 50, fan 60 and vacuum pump, thereby in fact reduced the consumption of electrokinetic cell energy, increased distance travelled.

Adopt the technical solution of the utility model, then mixed power/pure electric automobile in the process of moving, when the electrokinetic cell electric weight is not enough, to start working by the distance increasing unit that rotary engine and permanent magnet generator are combined, drive power steering pump, air condition compressor, cooling waterpump, vacuum pump and fan by the electron electric power system, reduce the power output demand of car load, thereby improved the continual mileage of car load electrokinetic cell.Certainly rotary engine also can directly drive power steering pump, air condition compressor, cooling waterpump and vacuum pump etc.

As shown in Figure 4, described motor 10 is connected with the pipeline of feed hydrogen fuel or rock gas or methanol fuel or alcohol fuel or biofuel.The mixed power system that is complementary with rotary engine passes through biofuels such as burning Hydrogen Energy, methyl alcohol, ethanol, rock gas, rapidly and efficiently the heat energy that burns is converted into electric energy and drives motor, simultaneously because improving constantly of electric drive continuous advancement in technology and power system energy efficiency also can realize the strong impetus of the linear sense of acceleration that rotary engine and motor provide simultaneously.

As preferred version of the present utility model, designed rotary engine is fuel with hydrogen, and products of combustion is mainly water and minor N Ox, and by EGR technology control rotary engine NOx discharging, so the car load discharging will be lower.Traditional reciprocating piston type hydrogen engine exists pre-ignition and tempering phenomenon, car load power character deficiency; And the hydrogen fuel rotary engine, cylinder profile and combustion-chamber shape that it is unique make intake process and combustion process separate, thereby have avoided the suction tude tempering phenomenon, adopt the in-cylinder direct injection technology can effectively avoid the pre-ignition phenomenon simultaneously.Therefore the hydrogen fuel rotary engine system especially is fit to mixed power/pure electric automobile, can reduce the car load discharging significantly.

In sum, the characteristics such as rotary engine system has that volume is little, in light weight, compact conformation, torque characteristics is even, noise is low, good reliability and durability meet the specification requirement of new-energy automobile lightweight, compact conformation, modularization and high power performance.

Claims

1. rotary engine system is characterized in that: described motor (10) is rotary engine, coaxial the linking to each other of main shaft of rotary engine and generator (20).

2. rotary engine system according to claim 1 is characterized in that: described motor (10) is a rotary polygonal piston engine.

3. rotary engine system according to claim 1 is characterized in that: described generator (20) is a rare earth permanent-magnetic generator.

4. rotary engine system according to claim 1 and 2 is characterized in that: described motor (10) directly drives load operation by driving mechanism.

5. rotary engine system according to claim 1 and 2 is characterized in that: described motor (10) is connected with the pipeline of feed hydrogen fuel or rock gas or methanol fuel or alcohol fuel or biofuel.

6. rotary engine system according to claim 3 is characterized in that: described generator (20) by the adverse current transducer be electrically connected with electrical load.

7. rotary engine system according to claim 4 is characterized in that: described load comprises power steering pump (30), air condition compressor (40), cooling waterpump (50), fan (60) and vacuum pump.