CN207554184U - A kind of engine pack - Google Patents

Abstract

The utility model is related to a kind of engine packs, including reciprocating engine and rotary engine, the reciprocating engine is three cylinder four-stroke engines, and the inlet manifold for air inlet is equipped on the reciprocating engine, and the exhaust outlet of the rotary engine is connected with the inlet manifold.The utility model adds rotary engine to promote the thermal efficiency on the basis of reciprocating engine, and can solve the problems, such as that rotary engine discharge is not up to standard.

Description

A kind of engine pack

Technical field

The utility model is related to the dynamical systems of vehicle, and in particular to a kind of engine pack.

Background technology

It is reciprocating engine in the most common engine of the dynamical system of vehicle, reciprocating engine is also referred to as piston type Engine, piston does linear reciprocating motion to reciprocating engine in cylinder at work, in order to which the linear motion of piston is turned It is changed to rotary motion, it is necessary to use toggle.Therefore, the motion of reciprocating engine is very complicated, manufactures cost It is high.And the running speed of reciprocating engine is limited by mechanical strength, is in line as rotating speed increases mechanical friction loss Property increase, cooling jacket takes away a large amount of thermal energy, relatively low so as to cause the thermal efficiency of reciprocating engine, especially burns gasoline The thermal efficiency of reciprocating engine can not break through 40%.

Rotary engine is then different, and flammable burning expansion power is directly converted into driving torque by it, is eliminated useless Linear motion, the highest thermal efficiency can reach 53%.Therefore the rotary engine of similary power is heavy compared with reciprocating engine Amount and volume reduce 2/3rds, and vibration and noise are reduced far below reciprocating engine.But the compression of rotary engine Than relatively low, there is the problem of burning is insufficient, cause discharge not up to standard.

Invention content

The purpose of this utility model is to propose a kind of engine pack, and rotor hair is added on the basis of reciprocating engine Motivation promotes the thermal efficiency, and can solve the problems, such as that rotary engine discharge is not up to standard.

A kind of engine pack described in the utility model, it is described reciprocal including reciprocating engine and rotary engine Formula engine is three cylinder four-stroke engines, is equipped with the inlet manifold for air inlet on the reciprocating engine, described turn The exhaust outlet of sub- engine is connected with the inlet manifold.

Further, the rotary engine is fixedly mounted on the reciprocating engine.

Further, charge air cooler, the charge air cooler are equipped between the exhaust outlet of the rotary engine and the inlet manifold Air inlet be connected with the exhaust outlet of the engine, the gas outlet of the charge air cooler is connected with the inlet manifold.

Further, there is the first output shaft for exporting power, the rotary engine on the reciprocating engine Upper the second output shaft with for exporting power；It further includes externally to export the total output shaft of power, defeated described first First drive mechanism of passing power and in second output shaft and total output between shaft and the total output shaft Second drive mechanism of passing power between axis；The speed of second drive mechanism is than 1.5 of the fast ratio for the first drive mechanism Times.

Further, first drive mechanism and second drive mechanism are gear train.

The utility model adds rotary engine to promote the thermal efficiency on the basis of reciprocating engine, and rotor is started The exhaust gas that machine is discharged is delivered in reciprocating engine to burn again, can solve rotary engine and discharge not up to standard ask Topic；Coordinated using three cylinder four-stroke engines and rotary engine so that the exhaust process and reciprocating engine that rotor starts Breathing process can coincide, external output speed and torque can be made more steady, but also the operation of engine pack is more Steadily.

Description of the drawings

Fig. 1 is the principle schematic of the utility model；

Fig. 2 is the operation principle schematic diagram of rotary engine.

In figure：1-reciprocating engine；2-rotary engine；3-inlet manifold；4-exhaust manifold；5-the first into Air pipe；6-first exhaust pipeline；7-the second air inlet pipeline；8-second exhaust pipeline；9-charge air cooler；10-the first output Axis；11-the first drive mechanism；12-the second output shaft；13-the second drive mechanism；14-total output shaft；15-cylinder body； 16-three-apexed rotor；17-spark plug；18-air inlet；19-exhaust outlet；20-eccentric shaft.

Specific embodiment

The utility model is described in further detail below in conjunction with the accompanying drawings.

A kind of engine pack as shown in Figure 1, including reciprocating engine 1 and rotary engine 2, reciprocating engine 1 is three cylinder four-stroke engines, and the inlet manifold 3 for air inlet, the row of rotary engine 2 are equipped on reciprocating engine 1 Gas port 19 is connected with inlet manifold 3.Rotary engine 2 is added on the basis of reciprocating engine 1 to promote the thermal efficiency, it will The exhaust gas that rotary engine 2 is discharged is delivered in reciprocating engine 1 to burn again, can solve rotary engine 2 and discharge The problem of not up to standard.It is used cooperatively simultaneously using three cylinder four-stroke engines with rotary engine 2 so that rotary engine 2 Exhaust process can match with the breathing process of reciprocating engine 1.

Reciprocating engine 1 and rotary engine 2 are engine structure commonly used in the prior art.Reciprocating engine 1 is three cylinder four-stroke engines, and for three cylinder four-stroke engines tool there are three cylinder, the ignition order of three cylinders is generally 1-3- 2 or 1-2-3, the bent axle of three cylinder four-stroke engines rotate 720 degree for a working cycles, three cylinders in a working cycles Acting, exhaust, air-breathing and compression, therefore three cylinder four-stroke engines have air-breathing mistake three times in a working cycles successively Journey.

As shown in Fig. 2, rotary engine 2 includes cylinder body 15, the three-apexed rotor 16 being arranged in cylinder body 15 and is arranged on cylinder Spark plug 17 on body 15, the eccentric shaft 20 for exporting power is equipped on cylinder body 15, and three-apexed rotor 16 drives eccentric shaft 20 Rotation is additionally provided with air inlet 18 and exhaust outlet 19,15 inner cavity of cylinder body is divided into three by three-apexed rotor 16 to export power on cylinder body 15 Air-breathing, compression, igniting, acting and exhaust are respectively successively completed in a separate space, three spaces, a, b, c, d and e in Fig. 2 according to Secondary is the breathing process in a space in rotary engine 2, compression process, ignition process, acting process and exhaust process.Therefore Three-apexed rotor 16 is often rotated by 360 °, rotary engine 2 do work three times, exhaust three times, can by the design feature of rotary engine Know, the rotating speed of eccentric shaft 20 is necessarily 3 times of the rotating speed of three-apexed rotor 16.Therefore it is eccentric when three-apexed rotor 16 is rotated by 360 ° Axis 20 rotates 1080 degree, and rotary engine 2 is vented three times.Under theory state, when rotary engine 2 eccentric shaft 20 rotating speed with The rotating ratio of the bent axle of reciprocating engine 1 is 3:When 2, in a working cycles, the exhaust process three times of rotary engine 2 with The breathing process three times of reciprocating engine 1 matches one by one so that the exhaust process of rotary engine 2 can be with reciprocating engine The breathing process of machine 1 matches.

As shown in Figure 1, in actual disposition, reciprocating engine 1 is additionally provided with the exhaust manifold 4 for exhaust, with being vented The first exhaust pipeline 6 that manifold 4 is connected and the first air inlet pipeline 5 being connected with inlet manifold 3.Rotary engine 2 Air inlet 18 is equipped with the second air inlet pipeline 7, and the exhaust outlet 19 of rotary engine 2 is equipped with second exhaust pipeline 8.

In order to reduce the exhaust outlet 19 of rotary engine 2 discharge exhaust gas temperature, the exhaust outlet 19 of rotary engine 2 with Charge air cooler 9 is equipped between inlet manifold 3, the air inlet of charge air cooler 9 is connected with the exhaust outlet 19 of rotary engine 2, charge air cooler 9 Gas outlet be connected with inlet manifold 3, exhaust outlet 19 discharge exhaust gas by charge air cooler 9 cooling after enter inlet manifold 3 in. As a preferred embodiment, connected between the exhaust outlet 19 of rotary engine 2 and the air inlet of charge air cooler 9 by second exhaust pipeline 8, The gas outlet of charge air cooler 9 is with inlet manifold 3 also by pipeline connection.

There is the first output shaft for exporting power for the power of output engine component, on reciprocating engine 1 10, there is in rotary engine 2 the second output shaft 12 for exporting power；Further include total output for externally exporting power Axis 14, first drive mechanism 11 of passing power and in the second output shaft 12 between the first output shaft 10 and total output shaft 14 Second drive mechanism 13 of passing power between total output shaft 14；The speed of second drive mechanism 13 is than being the first drive mechanism 11 1.5 times of fast ratio, due to 1.5 times for the rotating speed of the first output shaft 10 of rotating speed of the second output shaft 12, the second drive mechanism When 13 speed is than 1.5 times for the fast ratio of the first drive mechanism 11, the first output shaft 10 and the second output shaft 12 pass to always defeated The rotating speed of shaft 14 is identical.As a preferred embodiment, the first drive mechanism 11 and the second drive mechanism 13 are gear train, pass through number A gear being meshed comes passing power and speed change.In a kind of specific embodiment, the first output shaft 10 is reciprocating hair The bent axle of motivation 1, the second output shaft 12 are the eccentric shaft 20 of rotary engine 2.

As a preferred embodiment, rotary engine 2 is fixedly mounted on reciprocating engine 1.

Engine pack is using the common externally output power of reciprocating engine 1 and rotary engine 2, relative to reciprocating Engine, in a state that body volume and weight increase less than 1/3rd, engine pack, which externally exports power, increases by one Times.The breathing process of reciprocating engine 1 and the exhaust process of rotary engine 2 match, and reduce pumping loss so that do Work(and compression fit can make the rotating speed externally exported and torque more steady, can mitigate flywheel mass, can under most preferably identical state Cancel flywheel, further reduce the dead weight of automobile dynamic system, improve power-weight ratio.In order to ensure reciprocating engine 1 The exhaust process of breathing process and rotary engine 2 matches degree, in adjustment reciprocating engine 1 and rotary engine 2 It needs to consider run duration and inertia of the gas in pipeline during operating status.

Claims (5)

1. a kind of engine pack, it is characterised in that：Including reciprocating engine and rotary engine, the reciprocating engine For three cylinder four-stroke engines, the inlet manifold for air inlet, the rotary engine are equipped on the reciprocating engine Exhaust outlet be connected with the inlet manifold.

2. engine pack according to claim 1, it is characterised in that：The rotary engine is fixedly mounted on described past On compound engine.

3. engine pack according to claim 1, it is characterised in that：The exhaust outlet of the rotary engine with it is described into Charge air cooler is equipped between gas manifold, the air inlet of the charge air cooler is connected with the exhaust outlet of the engine, the charge air cooler Gas outlet be connected with the inlet manifold.

4. engine pack according to claim 1, it is characterised in that：Have to export on the reciprocating engine First output shaft of power has the second output shaft for exporting power in the rotary engine；It further includes for external Export power total output shaft, between first output shaft and the total output shaft passing power the first drive mechanism with And between second output shaft and the total output shaft passing power the second drive mechanism；Second drive mechanism Speed is than 1.5 times of the fast ratio for the first drive mechanism.

5. engine pack according to claim 4, it is characterised in that：First drive mechanism and second transmission Structure is gear train.