CN204003108U - The oil-limiter that a kind of single cylinder diesel is used - Google Patents
The oil-limiter that a kind of single cylinder diesel is used Download PDFInfo
- Publication number
- CN204003108U CN204003108U CN201420377390.XU CN201420377390U CN204003108U CN 204003108 U CN204003108 U CN 204003108U CN 201420377390 U CN201420377390 U CN 201420377390U CN 204003108 U CN204003108 U CN 204003108U
- Authority
- CN
- China
- Prior art keywords
- oil
- correction
- limiter
- screw bolt
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
Abstract
The utility model relates to the oil-limiter that a kind of single cylinder diesel is used, comprise push rod, oil-limiter body, correcting spring, spring seat and primer spring, described push rod, correcting spring is assemblied in spring seat successively, what between described spring seat and oil-limiter body, lay is primer spring, the right-hand member ecto-entad of described oil-limiter body is equipped with large correction double-screw bolt and little correction double-screw bolt successively, the big nut that described large correction double-screw bolt is provided with by right-hand member is locked, the primary nut that described little correction double-screw bolt is provided with by right-hand member is locked, the left end gap of described push rod right-hand member and little correction double-screw bolt is the oil quantity correction stroke Δ X that torque correction is used, described spring seat is starting upgraded correction stroke Δ Y with large gap of proofreading and correct double-screw bolt, one end in contact of adjustable stem front end and governor lever, described governor lever is stirred Injection Pump oil mass shift fork and is changed fuel delivery.
Description
Technical field
The utility model relates to the oil-limiter that a kind of single cylinder diesel is used, and is specifically related to most of conventional general oil-limiter of single-cylinder air-cooled diesel engine.
Background technique
Present status in China state single-cylinder air-cooled diesel engine oil-limiter, be actually a speed stabilization machine, diesel engine plays and reduces hypervelocity amount while suddenling change load operation higher than rated engine speed, the effect of diesel engine improved stability, because oil-limiter starting oil mass stroke is larger, when load increases, oil mass shift fork moves by governor control characteristics under the effect of governor spring power, reach full load even load can continue to move by governor control characteristics, fuel delivery increase can make diesel engine from exhausting black smoke, until fuel delivery increases too much rear black smoke, billow and stop working, diesel engine can not meet the diesel engine check requirements of NBS to mobile purposes.
And the < < that the patent No. is 201010521350.4 single cylinder diesel has proposed a kind of oil-limiter with oil-limiter and manufacture method > > thereof with oil quantity correction, correcting spring seat is the required oil quantity correction stroke Δ Y of starting with the gap of proofreading and correct nut, the gap of adjustable stem right-hand member and correcting spring seat bottom is the oil quantity correction stroke Δ X that torque correction is used, can adjust diesel engine from exhausting black smoke situation, but adjustment range is accurate not, versatility is not strong, has relatively high expectations.
The utility model is effectively adjusted correction stroke and starting upgraded stroke by big or small double-screw bolt, the effectively easy starting of assurance diesel engine and not over-emitting black exhaust, prevent diesel engine over-emitting black exhaust when overload, meet NBS to the torsional moment of diesel engine deposit of mobile purposes and the check requirements of speed adaptive coefficient, can be satisfied with most of conventional single-cylinder air-cooled diesel engine, as 170F, 177F, 186F, 188F serial diesel engine.
Summary of the invention
The oil-limiter that provides a kind of single cylinder diesel to use is provided the purpose of this utility model, by big or small double-screw bolt, effectively adjusts correction stroke and starting upgraded stroke, and the effectively easy starting of assurance diesel engine and not over-emitting black exhaust prevent diesel engine over-emitting black exhaust when overload.
For achieving the above object, the oil-limiter that the utility model provides a kind of single cylinder diesel to use, comprise push rod, oil-limiter body, correcting spring, spring seat and primer spring, described push rod, correcting spring is assemblied in spring seat successively, what between described spring seat and oil-limiter body, lay is primer spring, the right-hand member ecto-entad of described oil-limiter body is equipped with large correction double-screw bolt and little correction double-screw bolt successively, the big nut that described large correction double-screw bolt is provided with by right-hand member is locked, the primary nut that described little correction double-screw bolt is provided with by right-hand member is locked, the left end gap of described push rod right-hand member and little correction double-screw bolt is the oil quantity correction stroke Δ X that torque correction is used, described spring seat is starting upgraded correction stroke Δ Y with large gap of proofreading and correct double-screw bolt, one end in contact of adjustable stem front end and governor lever, described governor lever is stirred Injection Pump oil mass shift fork and is changed fuel delivery.Guarantee can meet torque reserve requirement in diesel engine full load, can prevent that again fuel delivery from continue increasing and causing black smoke, meet NBS to the check requirements of the torsional moment of diesel engine deposit of mobile purposes and speed adaptive coefficient and discharge, smoke intensity requirement; When starting, meet starting upgraded requirement, diesel engine starting is easy.
Further improvement of the utility model is: the oil quantity correction stroke Δ X that described torque correction is used is 0.8mm-1.1mm.Diesel engine starting oil mass is generally 1.3～1.5 times of declared working condition point fuel injection quantity, required actual cycle fuel feeding value while drawing diesel engine starting accordingly, and this oil-limiter is accomplished general.
Further improvement of the utility model is: the primer spring pretightening force of oil-limiter is greater than the active force of speed control system suffered on the push rod of oil-limiter when Full Load Characteristics of Diesel Engines minimum operating speed.Meeting NBS must be the requirement below 55% of rated engine speed by the minimum speed of non-road way Full Load Characteristics of Diesel Engines.
The beneficial effects of the utility model are: effectively prevent diesel engine from exhausting black smoke, control the smoke intensity of diesel engine, can make the torque reserve on Full Load Characteristics of Diesel Engines reach 12-20%, reduce the oil consumption of diesel engine, can be satisfied with most of conventional single-cylinder air-cooled diesel engine.
Accompanying drawing explanation
Fig. 1 represents that master of the present utility model is depending on partly cuing open figure;
Fig. 2 represents that 186FA diesel engine installs performance chart after the utility model;
Drawing reference numeral: 1-push rod, 2-oil-limiter body, 3-correcting spring, 4-spring seat, 5-primer spring, 6-big nut, 7-primary nut, the large correction double-screw bolt of 8-, the little correction double-screw bolt of 9-.
Embodiment
In order to deepen, to understanding of the present utility model, below in conjunction with drawings and Examples, the utility model to be described in further detail.
Referring to accompanying drawing 1, the utility model proposes the oil-limiter that a kind of single cylinder diesel is used, comprise push rod 1, oil-limiter body 2, correcting spring 3, spring seat 4 and primer spring 5, described push rod 1, correcting spring 3 is assemblied in spring seat 4 successively, what between described spring seat 4 and oil-limiter body 2, lay is primer spring 5, the right-hand member ecto-entad of described oil-limiter body 2 is equipped with large correction double-screw bolt 8 and little correction double-screw bolt 9 successively, the big nut 6 that described large correction double-screw bolt 8 is provided with by right-hand member is locked, the primary nut 7 that described little correction double-screw bolt 9 is provided with by right-hand member is locked, the left end gap of described push rod 1 right-hand member and little correction double-screw bolt 9 is the oil quantity correction stroke Δ X that torque correction is used, described spring seat 4 is starting upgraded correction stroke Δ Y with large gap of proofreading and correct double-screw bolt 8, one end in contact of adjustable stem 1 front end and governor lever, described governor lever is stirred Injection Pump oil mass shift fork and is changed fuel delivery.
Oil-limiter correction stroke Δ X, to start required oil quantity correction stroke Δ Y and three parameters of primer spring pretightening force are keys that oil-limiter is manufactured, numerical values recited and diesel engine Maximum Torque, diesel engine smoke intensity and discharge have direct relation, and the utility model is mainly used in traditional vertical diesel engine 170F, 177F, 186F, 188F serial diesel engine.
Starting required starting upgraded stroke Δ Y is determined by starting upgraded oil mass, diesel engine starting oil mass is generally 1.3～1.5 times of declared working condition point fuel injection quantity, required actual cycle fuel feeding value while drawing diesel engine starting accordingly, it is general for this oil-limiter is accomplished, while determining again the value of starting upgraded stroke Δ Y, select the 188F serial diesel engine of discharge capacity maximum to make reference, as long as meet the starting upgraded amount of 188F serial diesel engine, can meet the starting upgraded of the following series of 188F, through long Experimental Comparison, finally show that general context value is 0.8mm-1.1mm, oil-limiter dispatch from the factory assembling little correction double-screw bolt 9 is not installed before, compression push rod 1, decrement is controlled in value range, then lock big nut 6.
The pretightening force of primer spring 5 is another extremely important parameters of oil-limiter, according to NBS, by the minimum speed of non-road way Full Load Characteristics of Diesel Engines, must be below 55% of rated engine speed, therefore diesel engine at least before 50% rated engine speed primer spring 5 can not work, now the pretightening force of primer spring 5 must be greater than the stressed of oil-limiter push rod 1.By speed regulator working principle, draw after oil-limiter push rod 1 stressed, provide the requirement that starting upgraded spring rate and pretightening force meet primer spring pretightening force.
The oil mass that oil-limiter correction stroke Δ X need be proofreaied and correct by diesel engine is definite, and the correction oil mass of diesel engine comprises two-part, and a part depends on the combination of the structural parameter of oil jet pump of diesel engine, and parameters combination has determined the oil mass value under each rotating speed of Injection Pump speed characteristics; Another part depends on torque reserve value and the tachometer value requirement that diesel engine is up to state standards and stipulates, the actual performance that Full Load Characteristics of Diesel Engines will reach, the numerical value of torque value and fuel consumption rate.Because the performance of the diesel engine of different series is different, so the value of correction stroke Δ X is all variant, therefore adjust by adjusting little correction double-screw bolt the performance requirement that correction stroke Δ X meets different diesel engines.The 186F serial diesel engine Installation and Debugging of take are below example, and all the other 170F, 177F, 188F serial diesel engine Installation and Debugging step are debugged identical with 186F.
Use the utility model oil-limiter debugging 186F diesel engine step as follows:
By engine tune-up, to calibration point operating mode 3600rpm/6.3kw operation after 15 minutes, then hand throttle slightly, makes engine speed higher than rated engine speed 20～30r/min.On the tapped hole of body, be screwed into oil-limiter body 2, engine speed is pushed back to calibration point again, then fastening lock jack panel locking oil-limiter position.
By reference to the accompanying drawings 2, loading on dynamometer, engine speed constantly declines, moment of torsion increases, along speed characteristics operations, look for speed at maximum torque, require: maximum torque (>=12～20% reserve factor that meets the requirements, D-12 hydrodynamometer reading is that 19.6～21.0N(calculates to demarcate 6.3kW/3600r/min)), maximum torque point rotating speed is between 2500 r/min-2880r/min.If speed at maximum torque when 2880r/min is above, is adjusted little correction double-screw bolt 9, reduce correction stroke Δ X spacing, if speed at maximum torque is adjusted little correction double-screw bolt 9 when following at 2500 r/min, increase correction stroke Δ X spacing, until reach commissioning requirements.
By big or small double-screw bolt, adjust respectively starting upgraded stroke Δ Y and correction stroke Δ X, more accurate compared with the single nut adjustment on market, guarantee diesel engine over-emitting black exhaust not when overload, more meet NBS to the torsional moment of diesel engine deposit of mobile purposes and the check requirements of speed adaptive coefficient.
Claims (3)
1. the oil-limiter that single cylinder diesel is used, comprise push rod (1), oil-limiter body (2), correcting spring (3), spring seat (4) and primer spring (5), described push rod (1), correcting spring (3) is assemblied in spring seat (4) successively, what between described spring seat (4) and oil-limiter body (2), lay is primer spring (5), it is characterized in that: the right-hand member ecto-entad of described oil-limiter body (2) is equipped with large correction double-screw bolt (8) and little correction double-screw bolt (9) successively, the big nut (6) that described large correction double-screw bolt (8) is provided with by right-hand member is locked, the primary nut (7) that described little correction double-screw bolt (9) is provided with by right-hand member is locked, the left end gap of described push rod (1) right-hand member and little correction double-screw bolt (9) is the oil quantity correction stroke Δ X that torque correction is used, described spring seat (4) is starting upgraded correction stroke Δ Y with large gap of proofreading and correct double-screw bolt (8), one end in contact of adjustable stem (1) front end and governor lever, described governor lever is stirred Injection Pump oil mass shift fork and is changed fuel delivery.
2. the oil-limiter that a kind of single cylinder diesel according to claim 1 is used, is characterized in that: the oil quantity correction stroke Δ X that described torque correction is used is 0.8mm-1.1mm.
3. the oil-limiter that a kind of single cylinder diesel according to claim 1 is used, is characterized in that: the primer spring pretightening force of oil-limiter is greater than the active force of the upper suffered speed control system of push rod (1) of oil-limiter when Full Load Characteristics of Diesel Engines minimum operating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420377390.XU CN204003108U (en) | 2014-07-09 | 2014-07-09 | The oil-limiter that a kind of single cylinder diesel is used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420377390.XU CN204003108U (en) | 2014-07-09 | 2014-07-09 | The oil-limiter that a kind of single cylinder diesel is used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003108U true CN204003108U (en) | 2014-12-10 |
Family
ID=52043121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420377390.XU Expired - Fee Related CN204003108U (en) | 2014-07-09 | 2014-07-09 | The oil-limiter that a kind of single cylinder diesel is used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895680A (en) * | 2015-06-17 | 2015-09-09 | 潍柴动力股份有限公司 | Oil quantity limiting device and oil quantity limiting method for diesel engine and mechanical oil injection pump thereof |
-
2014
- 2014-07-09 CN CN201420377390.XU patent/CN204003108U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895680A (en) * | 2015-06-17 | 2015-09-09 | 潍柴动力股份有限公司 | Oil quantity limiting device and oil quantity limiting method for diesel engine and mechanical oil injection pump thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4650478B2 (en) | Diesel engine control device | |
| KR100952869B1 (en) | Control apparatus for internal combustion engine | |
| CN1192163C (en) | Method for determining advance ignition angle in internal combustion engine ignition systems | |
| RU2707649C2 (en) | Method (embodiments) and system to control fuel supply to cylinders of engine | |
| JP2009180174A (en) | Fuel property detection device and fuel injection system using same | |
| CN204003108U (en) | The oil-limiter that a kind of single cylinder diesel is used | |
| EP2221471A3 (en) | Control apparatus for internal combustion engine | |
| CN203248259U (en) | Single-cylinder diesel engine oil amount correcting mechanism | |
| JP5880219B2 (en) | Engine fuel property estimation device | |
| DE102010060872A1 (en) | Control device for a diesel engine | |
| CN102859182A (en) | Control device of internal combustion engine | |
| US10648411B2 (en) | Controller and control method for internal combustion engine | |
| US10094315B2 (en) | Engine rotational speed control apparatus | |
| CN104295388A (en) | Engine all-cylinder nonuniformity compensation control method based on indicated torque | |
| CN101949329B (en) | Oil limiter having function of correcting oil mass for single cylinder diesel and manufacturing method thereof | |
| CN201972785U (en) | Oil limiter with oil quantity correction for single cylinder diesel | |
| US20050143900A1 (en) | Method for computing an ignition angle of an internal combustion engine | |
| CN107917003A (en) | A kind of control method of engine smoothness of operation | |
| US20150292785A1 (en) | Engine rotational speed control apparatus | |
| CN203532371U (en) | Control device for improving response speed of hydraulic oil pump | |
| CN112081678B (en) | Smoke intensity control method for small excavator | |
| CN103925086A (en) | Oil pump and speed adjusting mechanism as well as positive-negative correction mechanism thereof | |
| CN103244282B (en) | A kind of single cylinder diesel oil quantity correction mechanism | |
| JP2016522359A (en) | Internal combustion engine starting method, apparatus, and computer program product | |
| KR101786114B1 (en) | Ignition timing control method of engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160709 |