CN2406070Y

CN2406070Y - Engine for motor vehicle

Info

Publication number: CN2406070Y
Application number: CN 99238423
Authority: CN
Inventors: 白凯军
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-28
Filing date: 1999-08-28
Publication date: 2000-11-15
Anticipated expiration: 2009-08-28

Abstract

The utility model discloses an engine for a motor vehicle, which comprises a gas cylinder and a piston, wherein the gas cylinder is additionally provided with an upper gas cylinder mechanism which is arranged in a supporting frame and comprises an upper gas cylinder body fixedly connected to the top of the gas cylinder, an upper piston is arranged in the upper gas cylinder body and is provided with a gas charging and discharging cavity body communicated with a cavity chamber of the upper gas cylinder body, and the supporting frame is provided with a control device which is connected with a crankshaft of the gas cylinder and is used for controlling a linking rod to downwards move. The utility model has the advantages of increasing engine power, reducing oil consumption under the same condition and saving energy, and meanwhile, because of the sufficient combustion of fuel, the environmental pollution is reduced.

Description

Motor car engine

The utility model relates to a kind of motor car engine, is reciprocating engine, is the motor of fuel with gasoline, diesel oil.

The motor car engine of the various models of using always now both at home and abroad as piston engines such as petrol engine, diesel engines, all is that piston runs to the top dead center position igniting at present, at this moment, and in-engine spatial volume unit minimum.The space of combuster, though engine interior has maximum pressure and pressure at this moment, this moment, bent axle was on the position of plumbness with connecting rod, pressure also can only be delivered on the bent axle frame in the front, can not produce any power and export.Effect of inertia along with engine flywheel, piston also moves downward thereupon, bent axle and connecting rod have progressively produced the angle and the moment of outputting power, but, when bent axle runs to preferable outputting power position, piston has moved displacement downwards about 1/7th, the engine air cylinder interior is also because moving down of piston increased the space, because of general engine compression ratio all greater than 1: 7, when engine piston operation seven/for the moment downwards, pressure has just descended when lighting a fire, and half is many, has only the pressure below 50% of igniting, engine piston continues operation 2/7ths downwards, the only surplus igniter pressure 25% of pressure in the cylinder, but and the work done pressure in the cylinder in the last seven/four-journey of power stroke, can only igniter pressure 25% and 12.5% between variation, can analyze thus, this is the low main cause of engine thermal efficiency.

The purpose of this utility model, be to provide a kind of motor that can make exactly when producing pressure maximum, avoid not having the state and the position of moment, and its making and settlement is on the preferable position in moment and power output angle, make the power of motor improve, and under equal conditions, but the motor car engine of energy saving.

The purpose of this utility model can realize by following measure:

Design of the present utility model, comprise upper cylinder and upper piston, on cylinder, be equipped with the upper cylinder mechanism that is installed in the support frame, upper cylinder mechanism is included in the upper cylinder body of cylinder head, design and installation has upper piston in the upper cylinder body, for the projection that prevents spark plug and descending upper piston are collided, bottom at upper piston offers groove, on upper piston, also be provided with, the intake and exhaust cavity that is connected with the upper cylinder fluid chamber, the intake and exhaust cavity extends upward, pass upper cylinder body roof, be connected with the intake and exhaust control gear on being installed in support frame, in the intake and exhaust cavity, be respectively arranged with the intake and exhaust valve that is connected with the upper cylinder body along the piston motion direction, on the intake and exhaust cavity wall, offer corresponding with the intake and exhaust valve along Normal direction, and the intake and exhaust channel that is connected, the interlock pole socket is installed above the intake and exhaust valve, on the interlock pole socket, along transverse direction linkage rod is installed, described upper piston, intake and exhaust cavity and interlock pole socket are integral structure, on support frame, be equipped with and be connected with the cylinder bent axle, be used to control the time that linkage rod moves down and the control gear of position, under linkage rod, flexible restoring organ be installed.

Intake and exhaust control gear in the utility model, comprise the driven wheel that is installed on the support frame, driving wheel links to each other with the cylinder bent axle by connecting driving mechanism, lower surface at driving wheel, be provided with convex, on support frame, also be provided with driving wheel on convex corresponding, be used to control the control pin of intake and exhaust valve air tube, on the interlock pole socket, offer and control the corresponding notch of pin; Follower is arranged on intake and exhaust valve top, at the follower lower surface, is provided with the convex bar, between follower and air tube, the control piece that is used to control air tube is installed.Be used to control the control gear that linkage rod moves down, comprise being installed on the support frame, with the corresponding cam of linkage rod, cam is connected with the cylinder bent axle by connecting driving mechanism.Flexible restoring organ is by being installed on the support frame, and the Returnning spring that is positioned at the linkage rod below constitutes.

Because what the utility model adopted is: above original cylinder, added the design proposal of upper cylinder and upper piston, made the work done more reasonable structure of motor, power obviously increases, and oil consumption reduces under the equal conditions, has saved the energy; Because fuel combustion is more abundant, reduced environmental pollution simultaneously.

Accompanying drawing drawing of the present utility model is described as follows:

Fig. 1 is a plan view of the present utility model.

Fig. 2 is the plan view of the utility model Fig. 1.

Fig. 3 is the plan view of the driven wheel in the intake and exhaust control gear in the utility model.

Fig. 4 is the plan view when drain tap is closed in the utility model.

Fig. 5 is the plan view of control pin in the utility model.

Fig. 6 is the plan view when drain tap is opened in the utility model.

Fig. 7 is the plan view when air intake valve is closed in the utility model.

Fig. 8 is the plan view when air intake valve is opened in the utility model.

Fig. 9 is the plan view of the follower in the intake and exhaust control gear in the utility model.

The utility model is done explanation in further detail below in conjunction with drawings and Examples:

As shown in the figure: the utility model comprises upper cylinder 1 and upper piston 2, on cylinder, be equipped with the upper cylinder train of mechanism that is installed in the support frame 3, the upper cylinder train of mechanism, comprise the upper cylinder body that is cemented in cylinder head, upper piston 2 is installed in the upper cylinder body, for the projection that prevents spark plug and descending upper piston are collided, offer groove 4 in the bottom of upper piston 3, concrete at petrol engine or diesel engine, be to offer in the bottom of upper piston and petrol engine spark plug 24 corresponding grooves 4 respectively just, or the corresponding groove of diesel injector profile, on upper piston 2, also be provided with the intake and exhaust cavity (label 7 that is connected with the upper cylinder fluid chamber, the spatial position of 8 tops).Upper cylinder mechanism extends upward, pass upper cylinder body roof, be connected with the intake and exhaust control gear system on being installed in support frame 3, in the intake and exhaust cavity, be provided with the intake and exhaust valve 7 that is connected with the upper cylinder body along the piston motion direction, 8, on the intake and exhaust cavity wall, offer porting 9 along its Normal direction, on supporting frame 3, be provided with the passway 10 of corresponding porting, and be communicated to intake and exhaust channel 11,12, (upper piston is when initial position, relief opening, passway and channel connection, overlapping, only behind descending location, just draw the porting 10 that is provided with on the intake and exhaust cavity), the interlock pole socket is installed above the intake and exhaust valve, on the interlock pole socket, linkage rod 13 is installed along transverse direction.Described upper piston 2, intake and exhaust cavity and interlock pole socket are integral structure, on support frame 3, also be equipped with, be connected with the cylinder bent axle, be used to control linkage rod 13, and the control gear that moves down of the overall structure that driven of linkage rod 13, below linkage rod, flexible restoring organ 14 is installed.(for keeping balance, two tops of linkage rod are equipped with resetting-mechanism and locating slot) Intaker controller system 5, exhaust control device system 6, be installed in the driving wheel 16 on the support frame 3, the follower 17 on the upper piston body, driving wheel is connected with the cylinder bent axle by connecting driving mechanism, at the lower surface of driving wheel, is provided with convex 18, also be provided with on the support frame 3 with driving wheel 16 on convex 18 corresponding, be used to control the control pin 20 of intake and exhaust valve air tube.On the interlock pole socket, offer and control pin 20 corresponding notches; Follower 17 is arranged on intake and exhaust valve top, at the lower surface of follower 17, also is provided with convex bar 19, and the control spring 14 that is used to control air tube is installed between follower and air tube.Be used to control the control gear that linkage rod 13 moves down, comprise being installed on the support frame 3 and linkage rod 13 corresponding cams 22, cam is connected with the cylinder bent axle by connecting driving mechanism 23.Flexible restoring organ is by being installed on the support frame 3, and is positioned at the Returnning spring 14 of linkage rod 13 belows and location poor 15 that the restriction continuous motion stem waves is formed.Belt pulley 23 is accepted the transmission of bent axle, drive camshaft assembly 25, camshaft assembly drives cam 22 and rotates, cam pressurization linkage rod 13, upper piston 2 is moved up and down, and the medium position of linkage rod 13 is provided with needle bearing 26, and the linkage rod two ends downwards, locating slot 15 is set, be provided with Returnning spring 14 below the interior continuous motion stem of locating slot, the camshaft end is provided with main driving wheel 27, and it drives attached drive wheel 28, attached drive wheel 28 drives umbrella gear 29, umbrella gear 29 drives driving wheel 16, again by driving wheel drive chain 30, power is passed to driving wheel 16 step by step, and driving follower 17, the lower surface of driving wheel is provided with the control convex 18 of control air discharge cook.The upper piston body is provided with follower 17, framework 3 is provided with exhaust control switch pin assembly 6, upper cylinder mechanism is by upper piston 3, and Fig. 7, Fig. 8, Fig. 4, Fig. 5, Fig. 6, constitute one overall, be provided with IO Intake Valve Opens wheel 31 among Fig. 7, IO Intake Valve Opens fixture 32 and spring, Fig. 4, Fig. 6 is a vent systems, if control spring 14, Fig. 5 is an air discharge cook control system 6, be provided with locating stud 21, be provided with O-ring 33 among upper piston is overall, to guarantee intake and exhaust channel 11, the sealing of the porting 9 on the passway 10 on 12 tops and the piston, it is identical that other work in former machine.

Working principle of the present utility model is as follows:

(1), upper piston gives up the throne, locatees.Upper piston is controlled by cam, when lower piston runs to last 1/14th expansion space stroke, because the effect of the non-jut of cam, the compacting dispensing that upper piston is suffered, under the pressure in cylinder and the acting in conjunction of Returnning spring, upper piston returns to initial position, and at this moment bent axle is being made uniform motion, lower piston is subjected to moving the control of angle, and operation slows down.Upper piston is return the home position, reduced inner cylinder pressure relatively, the volume when also just reducing exhaust.The location: upper piston is as there being positioning rod location, under the acting in conjunction of the backpressure that is had in the down pressure of cam and cylinder, deflection can occur, causes the displacement of porting, influences Throughput.The positioning rod and the continuous motion stem of design are one, and when the pressure handle masterpiece was used linkage rod under the cam, linkage rod drove upper piston and moves downwards, in the design linkage rod is extended, respectively add a locating slot in both sides, and made Returnning spring, linkage rod also can be used as positioning rod usefulness during week like this.Linkage rod links to each other with bearing with piston, to reduce kinetic friction.(2), the solution of inlet and outlet door, because of former cylinder head is static, inlet and exhaust valve can be fixed on the support frame, and newly-designed upper piston moves, inlet and exhaust valve has only head it off at the volley also along with motion.Below be explained with regard to the working procedure of inlet and outlet door: A, exhaust valve: the exhaust valve design in upper piston, when designing new relief opening, establish a movable switch in the relief opening position, when descent of piston when static, movable switch pins exhaust air tube top, during the piston return, the exhaust air tube is lockable motionless, can not be up, just opened exhaust valve automatically, finish exhaust, it changes the descending valve of opening of the drain tap of former motor piston stroking upward into and opens exhaust valve.B, intake valve: in design during piston, the gear (follower) that has the convex bar in one of the upper design of piston, it and another driving gear that is supported on the framework, the gear operation that slides up and down, during its running, the convex bar is by the intake valve pin time, under the suppressing action of convex bar, open intake valve, finish air inlet.The below of driving gear is provided with a cylindricality convex, and it has the exhaust valve on-off action concurrently, utilizes the projection of convex, when turning to exhaust valve, trigger the exhaust valve switch, make exhaust valve closing, then, finish the program of opening intake valve by follower again, finish the operation of intake and exhaust.

Claims

1, a kind of motor car engine, it comprises upper cylinder (1) and upper piston (2), it is characterized in that, on upper cylinder (1), be equipped with the upper cylinder train of mechanism that is installed in the support frame (3), include the upper cylinder body of cylinder head in the upper cylinder train of mechanism, upper piston (2) is installed in the upper cylinder body, bottom in upper piston (2), offer groove (4), on upper piston (2), also be provided with the intake and exhaust cavity that is connected with the upper cylinder fluid chamber, upper cylinder mechanism extends upward, pass upper cylinder body roof and the intake and exhaust control gear system (5 that is installed on the support frame, 6) be connected, in the intake and exhaust cavity, be respectively arranged with along the piston motion direction, the intake and exhaust valve (7 that is connected with the upper cylinder body, 8), on the intake and exhaust cavity wall, offer porting (9) along its Normal direction, on supporting frame, be provided with the passway (10) of corresponding porting, and be communicated to intake and exhaust channel (11,12), the interlock pole socket is installed above the intake and exhaust valve, on the interlock pole socket, along being horizontally installed with linkage rod (13), described upper piston (2), the intake and exhaust cavity, interlock pole socket and linkage rod (13) be integral structure, is equipped with to be connected with the cylinder bent axle on support frame (3), is used to control the control gear that the linkage rod structural entity moves down, flexible restoring organ (14) is installed under linkage rod, and flexible restoring organ (14) two ends are provided with locating slot (15).

2, motor car engine according to claim 1, it is characterized in that: in the described Intaker controller (5), comprise the follower (17) on driving wheel (16) that is installed on the support frame and the upper piston body that is attached thereto, driving wheel is by connecting driving mechanism, be connected with the cylinder bent axle, lower surface at driving wheel, be provided with convex (18), on support frame, also be provided with upper piston mechanism in follower on convex bar (19) institute corresponding, be used for controlling the control pin (20) of the drain tap air tube of venting gas appliance system (6), and control finger setting bolt (21), on upper piston, also be provided with and control the corresponding notch of pin (20), follower (17) is arranged on the top of intake and exhaust valve, lower surface at follower is provided with convex (18), and the control piece that is used to control air tube is installed between follower and air tube.

3, motor car engine according to claim 1, it is characterized in that: describedly be used to control the control gear that linkage rod (13) moves down, comprise and being installed on the support frame (3), with the corresponding cam of linkage rod (13) (22), for guaranteeing the balance pressurization, cam design is the binary form, and cam is connected with the cylinder bent axle by the drive wheel (23) that connects driving mechanism.

4, motor car engine according to claim 1 is characterized in that: described flexible restoring organ (14) is by being installed on the support frame (3), and is positioned at the Returnning spring of linkage rod below and the integral body that locating slot constitutes.