CN104121050A - Internal combustion engine with rotating speed regulator - Google Patents
Internal combustion engine with rotating speed regulator Download PDFInfo
- Publication number
- CN104121050A CN104121050A CN201410160743.5A CN201410160743A CN104121050A CN 104121050 A CN104121050 A CN 104121050A CN 201410160743 A CN201410160743 A CN 201410160743A CN 104121050 A CN104121050 A CN 104121050A
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- Prior art keywords
- camshaft
- driven gear
- internal
- combustion engine
- rod
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- High-Pressure Fuel Injection Pump Control (AREA)
Abstract
The invention relates to an internal combustion engine having a crank (6) and a cam shaft (7). A driving gear (15) is arranged at one side of the crank (6), and a driven gear (17) is arranged at the same side of the cam shaft (7). For obtaining a simple and effective centrifugal regulator, making required installation space minimized, and being beneficial for an execution mechanism as much as possible, the cam shaft (7) is hollow throughout the whole length, and a centrifugal blocks (30) arranged on the driven gear acts upon a rod body (31) penetrating through the cam shaft (7). The end part of the rod body (31) is effectively connected with a regulating or executing mechanism (37) at one end of the cam shaft, and is particularly effectively connected with an oil injection pump (5).
Description
Technical field
The present invention relates to a kind of internal-combustion engine with bent axle and camshaft, the both sides of bent axle and camshaft are all placed in motor shell wall and the two is parallel, wherein in a side of bent axle, actuation gear is installed, at the homonymy of camshaft, driven gear, wherein integrated governor weight piece in driven gear is installed.To this, first consider the simple engine with a few cylinder for compact car and working machine.
Background technique
By the known a kind of single-cylinder engine of DE4327128A1 patent documentation, wherein before cylinder, be provided with extremely short camshaft.This single-cylinder engine only has a cam and a driven gear, is provided with governor weight piece on driven gear.Governor weight piece acts on the sliding sleeve that can move on camshaft, and the overlength lever that leads to actuator's (being Carburetor in literary composition) that in housing, pivotable is installed is engaged in this sliding sleeve.The contact points of lever rubs on the sliding sleeve of rotation.This motor is to specify for portable working appliance, and its reason that meets this object is especially that bent axle suspends and installs and arranged extremely short camshaft before cylinder.
A kind of conventional setting and the bent axle of bearing structure and the motor of camshaft that have described in EP425899A1 patent documentation.In this motor, in a side of camshaft driven gear, centrifugal governor is set, this centrifugal governor acts on the sleeve that can move on camshaft.In literary composition and not mentioned or set forth actuator or sleeve therewith as actuator be connected.In the centrifugal governor so arranging, it must complex structure and easily breaks down.In addition, in this class (and above-mentioned) prior art, can find out, the sleeve that can move on camshaft occupies considerable installing space, and this can be an impediment to the front of motor.Its defect is as a rule arranged at outside the bearing structure of camshaft and suspends particularly in, driven gear.
Summary of the invention
The object of the invention is to, overcome described defect and propose a kind of simple and effective centrifugal governor, the required installing space of this centrifugal governor minimizes, and makes utilizing optimization and being beneficial to the setting of actuator as far as possible of available installing space.
According to the present invention, can realize, camshaft continuous hollow and the governor weight piece being placed on driven gear act on the body of rod that runs through hollow camshaft, and one end (directly or indirectly) that this body of rod is in reverse to driven gear acts on controlling mechanism or actuator at the other end of camshaft.In simple motor, only relate to Yi Ge actuator.Owing to saving movably sleeve, can reduce the required space of centrifugal governor, and the side also more easily contacting thus with the on-fixed that is transferred to camshaft being connected of actuator.The length of the body of rod can not cause negative effect, and therefore this structure is equally applicable to have the motor of a plurality of cylinders.The quality of the body of rod even can play cushioning effect.Be generally used for guiding the camshaft of lubricant oil at least on its partial-length, to there is coaxial longitudinal hole, so this scheme also can not cause additionally and expend.Definite, simplify thus the connection of Liao Yu actuator, thereby holistic cost decreases.
Preferably, governor weight piece is at least two both arms toggle links that pivot in driven gear and install, its first arm is the lever arm that acts on the body of rod, and its second arm is the governor weight piece that approximately meets at right angles (being greater than or less than right angle) and extend internally from axle with the first arm.The second arm pushes the body of rod along with the cumulative of rotating speed.Because governor weight piece is arranged at gear inside, so it does not need installing space, neither between driven gear and camshaft bearing, not outside driven gear yet.
Alternatively, governor weight piece can be spheroid, can vertically move the ball cage inclined-plane synergy of guiding in this spheroid and driven gear, and the masterpiece that wherein ball cage is arranged at a side (its inner side) that driven gear is intended for camshaft subtend Compress Spring is for the body of rod.Its rear ball cage is connected or is integrally formed with the briquetting that is arranged at driven gear center, and wherein briquetting acts on the body of rod.Thus, the required mass distribution of governor weight piece becomes a plurality of spheroids, and length of installation is minimum and the guiding of briquetting in gear hub is splendid.
In this improved preferred version, the wheel hub of driven gear has flange section, and for being removably connected with camshaft, ball cage has the through hole for flange section.Can be easy to thus assembling.
In better embodiment of the present invention, pivotable lever is provided for effective connection the between one end that the body of rod is in reverse to driven gear and adjusting or actuator, and this lever is resisted against this one end of the body of rod at point of contact.Because the diameter of the body of rod is less and point of contact joins in the running shaft of camshaft, actual not friction between the fixing point of contact in the body of rod of rotation and position.Preferably, lever can be around change the turning point deflection of position in body of rod direction with respect to engine shell.By the change of turning point position, can expect regulating rotating speed to be kept in simple mode.
Lever can directly act on the throttle valve of Carburetor.In diesel engine, the particularly preferred embodiment of extending according to inventive concept is, injection cam is placed in the side that camshaft is in reverse to driven gear, and this injection cam acts synergistically with Injection Pump.Therefore, Injection Pump no longer needs independent driver and Injection Pump to be positioned near lever, and so lever can directly be connected with regulating the adjustable lever of fuel injection quantity.
Thus, Injection Pump can directly be arranged on the cam in engine shell, thereby injection cam can directly act on Injection Pump without intermediate connecting rod.This can further be down to minimum by manufacturing composition and requisite space.
In improvement project of the present invention, can be by bent axle by least one intermediate gear drives camshaft.It is farther apart from bent axle that this can make camshaft be arranged to, more close cylinder head for example, or shorten being connected between Injection Pump and oil nozzle.
Accompanying drawing explanation
Below with reference to accompanying drawings and specific embodiments set forth the present invention.Wherein:
Fig. 1 represents the cross section according to motor of the present invention;
Fig. 2 represents along the section of Fig. 1 center line A-A;
The isometric views of Fig. 3 presentation graphs 2;
The section of the change programme of Fig. 4 presentation graphs 2.
Embodiment
In Fig. 1 and Fig. 2, can find out, the whole engine cylinder-body of single-cylinder engine is to consist of crankcase 1 and cylinder or cylinder block 2.The two (1 and 2) can one form, and cylinder block 2 can be set to not have disassembly-type cylinder head.On cylinder block 2, whole scavenging air valve and oil nozzle 4 with 3 expressions is set.This oil nozzle 4 is connected with Injection Pump 5 by spray bar 10, and this Injection Pump 5 is arranged at the camshaft case 12 being configured on crankcase 1.Camshaft case 12 is the projection of crankcase 1 in this case, can be also the add-on parts with bolton.Bent axle 6 is installed in crankcase 1, in Fig. 2, only can finds out its driven end being stretched out by crankcase 1 14.
Actuation gear 15 is placed on one end (being in this case in reverse to the end of driven end 14) of bent axle 6, and this actuation gear 15 is by intermediate gear 16 drive cam shaft 7.To this, intermediate gear 16 and driven gear 17 engagements that are placed on camshaft 7.Also can not have intermediate gear 16 or by a plurality of breast wheels, Quality Initiative or cingulum, realize the driving of camshaft 7, the latter is for such as being set at camshaft apart from situations such as bent axle 6 are farther.In reality, camshaft 7 is parallel to all the time bent axle 6 and substantially extends to same length.
Bent axle 6 and camshaft are installed in front bulkhead 25 and aft bulkhead 26, and camshaft 7 is installed in fore bearing 27 and rear bearing 28.Bearing can be respectively sliding bearing or rolling bearing.Therefore, for simplicity, only the respective cylinder face on camshaft is expressed as to bearing 27 and 28.Outside bearing 27, driven gear 17 is positioned on camshaft 7 subsequently.Camshaft 7 has valve cam 40, and this valve cam is controlled scavenging air valve 3 by push rod 29, at this, also has another cam 41(injection cam).This cam 41 is arranged at position the acting in conjunction direct with it that Injection Pump 5 is assemblied in camshaft case, and this cam 41 directly acts on the pump piston (not shown) of Injection Pump 5.
In Fig. 2 and Fig. 3, can specifically find out the camshaft 7 with centrifugal governor.Camshaft 7 passes through slotting its whole length in longitudinal hollow and the concentric body of rod 31.On the right side of Fig. 2, the outstanding bearing 27 of camshaft 7 also stretches out, the antitorque connection of flange 47 at this place with driven gear 17.The governor weight piece 30 of qcr controller is placed in driven gear 17.Flange 47 has two opposed through holes 46 at this, and being wherein separately installed with can be around the governor weight piece 30 of axle 45 rotations.At this, there are two governor weight pieces 30, also can there are a plurality of governor weight pieces 30.In view of required installing space minimum, so all or part of inside that is configured in gear 17 of governor weight piece 30.
Governor weight piece 30 is both arms toggle link in this case, and its second arm forms actual governor weight piece, and its first arm 43 inwardly extends the running shaft 48 of camshaft and extends thus the end of the body of rod 31 and easily contact this end.Along with the increase of rotating speed, the first arm 43 pushing bodies of rod 31.In the longitudinal hole of camshaft, the body of rod 31 leads in sliding bearing 42, and this sliding bearing 42 also, as sealing gasket, can be used as vibration damper if desired.Its reason that can be used as sealing gasket is, by not shown in the figures pipeline is hollow camshaft 7 supplying lubricating oils by bearing 27 in a conventional manner, and be cam 40 and 41 supplying lubricating oils thus.
At camshaft 7, be in reverse to one end of driven gear 17, the body of rod 31 acts on lever 32.Lever 32 in this case can be around the double-arm lever of turning point 33 pivotables, and one arm forms point of contact 34, and this point of contact 34 is close to the contacted free end of the body of rod 31, and its another arm connects by joint 38Yu actuator 37 and the power of subtend Compress Spring 49 moves.
Actuator 37 is the controlling rod of Injection Pump 5 in this case.Injection Pump 5 itself is not part of the present invention.It can have multiple structure.In general Injection Pump, controlling rod can comprise the sleeve rotating of pumping cylinder thus at its longitudinally-moving, regulates whereby the rotating speed of fuel injection quantity and bent axle 6.Have in the petrolic situation of Carburetor, actuator will act on the throttle valve of Carburetor.
The turning point 33 of lever 32 can arrange for regulating rotating speed to be kept on the regulating lever 35 being represented by dotted lines, and this regulating lever 35 can be by handle 35 around being fixed on 39 rotations of housing Shang center.
In the change programme of Fig. 4, governor weight piece is divided into spheroid 123 on circumference, spheroid 123 be arranged in a side by the gear ring of gear 117 and gear disk, opposite side by the formed space of ball cage 121.Spheroid 123 is also placed in the inside of driven gear 117.Gear 117 has wheel hub 118, and this wheel hub 118 is connected with camshaft 7 by bolt 120 by flange section 119.Ball cage 121 has interior inclined-plane 122, thereby its active force along with the increase subtend Compress Spring 126 of rotating speed is pressed to the right.Ball cage 121 is connected with briquetting 127 or is one-body molded and have a through hole 125 for the passage of flange section 119.Briquetting 127 is depressed on the end 128 of the body of rod 31 these sides.
The present invention is not limited to described mode of execution, does not depart from the scope of the claims in the present invention book in every case, and all equivalent variations, modification and the combining form of its each feature all still belongs to technological scheme of the present invention.Especially, the present invention is not limited to diesel engine or single-cylinder engine, as long as governor weight piece is arranged in driven gear or on driven gear and acts on the motion bar that runs through hollow camshaft, can be set as any configuration.
Label list
Claims (12)
1. an internal-combustion engine with a bent axle (6) and a camshaft (7), the both sides of described bent axle (6) and described camshaft (7) are all installed on the wall portion (25 of engine cylinder-body (1), 26) in and described bent axle (6) parallel with described camshaft (7), wherein the side at described bent axle (6) arranges an actuation gear (15), homonymy at camshaft (7) arranges a driven gear (17), governor weight piece is wherein installed on described driven gear, it is characterized in that: described camshaft (7) hollow and be placed in the described governor weight piece (30 on described driven gear in its whole length, 123) act on a body of rod (31) that runs through described hollow camshaft (7), and one end that the described body of rod (31) is in reverse to described driven gear (17) is effectively connected with an adjusting or actuator (37) at the other end of described camshaft (7).
2. internal-combustion engine according to claim 1, it is characterized in that: described governor weight piece (30) is the both arms toggle link of installing around axle (45) rotation in described driven gear, its first arm (43) is the lever arm that acts on the described body of rod (31), its second arm forms described governor weight piece (30), and this governor weight piece (30) approximately meets at right angles and extends internally from described axle (45) with described the first arm (43).
3. internal-combustion engine according to claim 1, it is characterized in that: described governor weight piece (123) is spheroid, inclined-plane (122) synergy that can vertically move the ball cage (121) of guiding in described spheroid and described driven gear (17), wherein said ball cage (121) is arranged at described driven gear (17) and is intended for a side of described camshaft (7) the masterpiece of subtend one Compress Spring (126) for the described body of rod (31).
4. internal-combustion engine according to claim 3, it is characterized in that: the briquetting (127) that described ball cage (121) and is arranged at the running shaft (48) of described driven gear (17) is connected or is integrally formed, and wherein said briquetting (127) acts on the described body of rod (31).
5. internal-combustion engine according to claim 4, is characterized in that: described driven gear (17) has a wheel hub (118), and this wheel hub (118) has the flange section (119) being connected with described camshaft (7) for removably; Described ball cage (121) has the through hole (125) for described flange section (119).
6. internal-combustion engine according to claim 1, it is characterized in that: a pivotable lever (32) is provided for effective connection the between one end that the described body of rod (31) is in reverse to described driven gear (17) and described adjusting or actuator (37), and described lever (32) is resisted against this one end of the described body of rod (31) at a point of contact (34).
7. internal-combustion engine according to claim 6, is characterized in that: described lever (32) around one can be in the described body of rod (31) direction with respect to turning point (33) pivotable of described engine cylinder-body (1) dislocation.
8. internal-combustion engine according to claim 6, is characterized in that: described lever (32) acts on the throttle valve of a Carburetor.
9. internal-combustion engine according to claim 6, is characterized in that: described lever (32) acts on the fuel delivery regulator of an Injection Pump (5).
10. internal-combustion engine according to claim 9, is characterized in that: an injection cam (41) is placed in the side that described camshaft (7) is in reverse to described driven gear (17), this injection cam (41) and described Injection Pump (5) synergy.
11. internal-combustion engines according to claim 9, is characterized in that: described Injection Pump (5) is directly arranged on the interior described cam (41) of described engine cylinder-body (1), and described injection cam (41) directly acts on described Injection Pump (5).
12. internal-combustion engines according to claim 1, is characterized in that: by described bent axle (6), by an intermediate gear (16), drive described camshaft (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT3372013A AT513151B1 (en) | 2013-04-23 | 2013-04-23 | Internal combustion engine with speed controller |
| ATA337/2013 | 2013-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104121050A true CN104121050A (en) | 2014-10-29 |
Family
ID=50064859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410160743.5A Pending CN104121050A (en) | 2013-04-23 | 2014-04-21 | Internal combustion engine with rotating speed regulator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104121050A (en) |
| AT (1) | AT513151B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725131A (en) * | 2017-11-07 | 2018-02-23 | 重庆润通科技有限公司 | Adjustable type cam drive mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2257859Y (en) * | 1996-04-03 | 1997-07-16 | 李�荣 | Variable distributing timing device of automobile engine |
| CN1238422A (en) * | 1998-06-09 | 1999-12-15 | 锦江油泵油咀厂 | Centrifugal speed controller |
| CN101067387A (en) * | 2006-12-15 | 2007-11-07 | 郭书申 | Method for raising diesel engine performance and setting structure of its method |
| CN200978691Y (en) * | 2006-11-14 | 2007-11-21 | 冯政杰 | Cam device for controlling engine valve rocking arm |
| CN102061999A (en) * | 2010-04-19 | 2011-05-18 | 重庆润通动力有限公司 | Engine with automatic carburetor throttle control device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0425899B1 (en) * | 1989-11-02 | 1994-01-26 | Kubota Corporation | Engine with mechanical governor and decompression device |
| JPH0618638U (en) * | 1992-08-12 | 1994-03-11 | リョービ株式会社 | Engine for portable work machine |
-
2013
- 2013-04-23 AT AT3372013A patent/AT513151B1/en not_active IP Right Cessation
-
2014
- 2014-04-21 CN CN201410160743.5A patent/CN104121050A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2257859Y (en) * | 1996-04-03 | 1997-07-16 | 李�荣 | Variable distributing timing device of automobile engine |
| CN1238422A (en) * | 1998-06-09 | 1999-12-15 | 锦江油泵油咀厂 | Centrifugal speed controller |
| CN200978691Y (en) * | 2006-11-14 | 2007-11-21 | 冯政杰 | Cam device for controlling engine valve rocking arm |
| CN101067387A (en) * | 2006-12-15 | 2007-11-07 | 郭书申 | Method for raising diesel engine performance and setting structure of its method |
| CN102061999A (en) * | 2010-04-19 | 2011-05-18 | 重庆润通动力有限公司 | Engine with automatic carburetor throttle control device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725131A (en) * | 2017-11-07 | 2018-02-23 | 重庆润通科技有限公司 | Adjustable type cam drive mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| AT513151B1 (en) | 2014-02-15 |
| AT513151A4 (en) | 2014-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141029 |
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| WD01 | Invention patent application deemed withdrawn after publication |