CN201162608Y - Gas starting device of engine - Google Patents
Gas starting device of engine Download PDFInfo
- Publication number
- CN201162608Y CN201162608Y CNU2008200073727U CN200820007372U CN201162608Y CN 201162608 Y CN201162608 Y CN 201162608Y CN U2008200073727 U CNU2008200073727 U CN U2008200073727U CN 200820007372 U CN200820007372 U CN 200820007372U CN 201162608 Y CN201162608 Y CN 201162608Y
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- Prior art keywords
- air
- cylinder
- valve
- engine
- starting device
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Abstract
The utility model discloses an engine gas starting device which comprises a compressed air supply component, a start valve and an air distributor. The compressed air supply component, the start valve and the air distributor are connected in series. The air distributor is respectively communicated with the cylinder of an engine by an air conduit. The compressed air supply component is a set of air input braking system device which comprises an arrester component, a gas bomb, an electromagnetic valve, etc. The engine gas starting device has the advantages of simple structure, being capable of recycling compressed air and reducing the cost and can be widely applied to the engine manufacturing field.
Description
Technical field
The utility model relates to a kind of engine starting gear, relates in particular to the device that a kind of motor utilizes pressurized air to start.
Background technique
At present, air starting during traditional cylinder work done is to utilize compressor to send into the high-pressure air of 1～3.5MPa in cylinder, high-pressure air promotes the startup that descent of piston forces bent axle to rotate to realize diesel engine, not end in piston stroke, run well the same with diesel engine, air is discharged in exhauxt valve opens.Therefore, comperssed air starting utilizes compressed-air actuated energy to replace the fuel combustion expansion working exactly, and the time that pressurized air enters cylinder just should be the working stroke of cylinder.The part but it structurally also comes with some shortcomings:, cause complex structure, and pressurized air can not be recycling, causes cost higher because high-pressure air need use special device.
The model utility content
The technical problems to be solved in the utility model provide a kind of simple in structure, can be recycling the cylinder gas gas starting device of engine that produces pressurized air, reduce cost.
For solving the problems of the technologies described above, the utility model provides a kind of gas starting device of engine, comprise pressurized air feeding assembly, starter gate valve and air distributor, described pressurized air feeding assembly, starter gate valve and air distributor serial connection, described air distributor is connected with the cylinder of motor respectively by air pipe.
Described pressurized air feeding assembly is one to pack into the air braking system device, described air inlet brake system device comprises brake assembly, air cylinder and solenoid valve, described brake assembly is connected with the suction valve of motor, control the opening and closing of described suction valve, the suction port of described air cylinder is external in the suction tude of described cylinder, the air outlet of described air cylinder is connected in series with described starter gate valve and described air distributor, and described solenoid valve is located between the suction port and described suction tude of described air cylinder.
Place, air outlet at described air cylinder also is provided with Auxiliary valves.
In the suction tude of described motor, be provided with one-way valve.
Described brake assembly comprises brake casing, driven plunger assembly and solenoid valve are installed on described brake casing, on described driven plunger assembly, be provided with the draining pin, described brake casing is installed on the pitman arm shaft bearing of motor, is assemblied in cylinder cap with bolt with described pitman arm shaft bearing and tightens.
Owing to adopt above-mentioned technological scheme, the utlity model has following beneficial effect:
1, simple in structure, cost is low;
2, the air cylinder owing to the pressurized air feeding assembly is connected with the gas handling system of cylinder, one-way valve stops gas to flow in the suction tude in the suction tude at this moment, air in the cylinder constantly flows in the air cylinder like this, form pressurized air in the air cylinder, when cylinder is in working stroke, starter gate valve and air distributor control under, pressurized air is transported in the cylinder again, realizes compressed-air actuated recycling.
Description of drawings
Fig. 1 is the structural representation of the utility model gas starting device of engine;
Fig. 2 is an air inlet brake system device structure principle chart of the present utility model;
Fig. 3 is the structural representation of brake assembly of the present utility model;
Fig. 4 is the scheme of installation of brake assembly of the present utility model;
Fig. 5 is engine cylinder internal pressure of the present utility model and valve lift curve.
Mark the following drawings mark thereon in conjunction with the accompanying drawings:
The 1-Auxiliary valves; The 2-air cylinder; The 3-starter gate valve; The 4-air distributor; The 5-cylinder;
The 7-solenoid valve; The suction tude of 8-motor; The 9-one-way valve; The 10-motor; The empty filter of 11-;
The 12-adjusting screw; The 13-nut; The 14-brake casing; The 15-ring washer;
16-draining pin; 17-driven plunger assembly; The 18-spring sheet; The 19-bolt; 20-filter screen folder;
The 21-filter screen; The 22-O RunddichtringO; The 23-O RunddichtringO; The 24-O RunddichtringO;
The 25-filter screen; The 26-solenoid valve; The 27-pressing plate; The 28-bolt.
Embodiment
As shown in Figure 1, the utility model gas starting device of engine, comprise pressurized air feeding assembly, starter gate valve 3 and air distributor 4, pressurized air feeding assembly, starter gate valve 3 and air distributor 4 serial connections, air distributor 4 is connected with the cylinder 5 of motor respectively by air pipe.
As shown in Figure 2, the pressurized air feeding assembly is one to pack into the air braking system device, and the air inlet brake system device comprises brake assembly, air cylinder 2 and solenoid valve 7, and brake assembly is connected with the suction valve of motor 10, the opening and closing of control suction valve.The suction port of air cylinder 2 is external in the suction tude of cylinder, and the air outlet of air cylinder 2 is connected in series with starter gate valve 3 and air distributor 4, also is provided with Auxiliary valves 1 at the place, air outlet of air cylinder 2, is used for auxiliary switch air cylinder 2 (as shown in Figure 1).Solenoid valve 7 is located between the suction port and suction tude 8 of air cylinder 2, the air inlet switch and the air inflow of control air cylinder 2.In the suction tude 8 of motor, be provided with one-way valve 9, avoid gas to flow backwards.One end of suction tude 8 connects empty filter 11.
When motor is in compressive state, the inlet and outlet door is closed simultaneously, and the utility model makes it to open by brake assembly control intake valve, and compressed gas just flows to air cylinder 2, realizes the air inlet braking thereby make motor do negative work.The external air cylinder 2 of this external gas handling system is provided with the flow direction that a solenoid valve 7 comes control gaseous in the air cylinder 2, one-way valve 9 is set in the suction tude 8 guarantees that gas does not flow backwards.
As shown in Figure 3, brake assembly comprises brake casing 14, on brake casing, driven plunger assembly 17 is installed by adjusting screw 12 and nut 13, on driven plunger assembly 17, be provided with draining pin 16, above draining pin 16, be provided with ring washer 15, in driven plunger assembly 17, be provided with filter screen folder 20 and filter screen 21, be connected with spring sheet 18 and bolt 19 at driven plunger assembly 17, by pressing plate 27 and bolt 28 solenoid valve 26 is installed at brake casing 14, on the surface of contact of solenoid valve 26 and brake casing 14, be provided with O RunddichtringO 22,23,24, be used for enhanced leaktightness.Also be provided with filter screen 25 at solenoid valve 26.
As shown in Figure 4, the brake casing 14 of brake assembly is installed on the pitman arm shaft bearing of motor, is assemblied in cylinder cap with bolt with described pitman arm shaft bearing and tightens.
Fig. 5 represents the engine cylinder internal pressure and the valve lift curve of model utility.Concrete principle is as follows: when compression stroke began, air inlet valve position was in closed condition, and this moment, the suction valve brake assembly just stoped pent INO (keeping about 1mm-2mm stroke).In compression stroke, a compressed-air actuated part just leaks out from cylinder like this, even has arrived atdc at piston, and suction valve is still leaving.Pressurized air is expand in the air cylinder by the suction valve gap, one-way valve guarantees that gas does not flow back in the suction tude in the suction tude at this moment, the speed of the piston that moves downward when making expansion stroke reduces greatly, avoid compression work to drive the motor acting once more, so just make motor become air compressor, thereby produce engine braking.When exhaust stroke began, the motion of rocking arm was closed suction valve, and exhaust valve is opened, and the oilhole that unloads on the inlet rocker arm is all opened at this moment, lubricant oil ejection draining, and brake assembly is return under the effect of return spring, and intake valve recovers proper functioning.Above-mentioned braking process moves in circles and carries out, thereby increases the retardation efficiency of motor greatly.
The utility model design is very ingenious, is to utilize the gas of air inlet brake system device to realize starting.Principle is as follows: when exhaust brake work operating mode, can store the gas of certain air pressure in the air cylinder, we can realize air starting by the pressure and the flow direction of utilizing gas in the electromagnetic valve air cylinder.That is: when motor need start, the closed electromagnetic valve of suction tude, the starter gate valve of air cylinder is opened, and Ya Suo gas enters the firing chamber by suction valve like this, promotes descent of piston, thereby forces bent axle to rotate the startup that realizes diesel engine.
Air cylinder is used for storing pressurized air.Concerning diesel engine, the capacity of air bottle must satisfy diesel engine and start repeatedly needed air quantity continuously.Starter gate valve is the switch that pressurized air enters cylinder, and the open and close of starter gate valve is controlled by air distributor.The effect of air distributor is according to the requirement of diesel engine starting timing and ignition order, is controlling the open and close of starter gate valve.Starter gate valve is the main switch of comperssed air starting device, and it is controlling the air flue between air cylinder and the air distributor.
It should be noted that: above embodiment is only unrestricted in order to explanation the utility model, the utility model also is not limited in above-mentioned giving an example, all do not break away from the technological scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.
Claims (5)
1, a kind of gas starting device of engine, it is characterized in that: comprise pressurized air feeding assembly, starter gate valve and air distributor, described pressurized air feeding assembly, starter gate valve and air distributor serial connection, described air distributor is connected with the cylinder of motor respectively by air pipe.
2, gas starting device of engine according to claim 1, it is characterized in that: described pressurized air feeding assembly is one to pack into the air braking system device, described air inlet brake system device comprises brake assembly, air cylinder and solenoid valve, described brake assembly is connected with the suction valve of motor, control the opening and closing of described suction valve, the suction port of described air cylinder is external in the suction tude of described cylinder, the air outlet of described air cylinder is connected in series with described starter gate valve and described air distributor, and described solenoid valve is located between the suction port and described suction tude of described air cylinder.
3, gas starting device of engine according to claim 2 is characterized in that: the place, air outlet at described air cylinder also is provided with Auxiliary valves.
4, according to claim 2 or 3 described gas starting device of engine, it is characterized in that: in the suction tude of described motor, be provided with one-way valve.
5, according to claim 2 or 3 described gas starting device of engine, it is characterized in that: described brake assembly comprises brake casing, driven plunger assembly and solenoid valve are installed on described brake casing, on described driven plunger assembly, be provided with the draining pin, described brake casing is installed on the pitman arm shaft bearing of motor, is assemblied in cylinder cap with bolt with described pitman arm shaft bearing and tightens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200073727U CN201162608Y (en) | 2008-03-27 | 2008-03-27 | Gas starting device of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200073727U CN201162608Y (en) | 2008-03-27 | 2008-03-27 | Gas starting device of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201162608Y true CN201162608Y (en) | 2008-12-10 |
Family
ID=40183546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200073727U Expired - Lifetime CN201162608Y (en) | 2008-03-27 | 2008-03-27 | Gas starting device of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201162608Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545441B (en) * | 2008-03-27 | 2010-12-08 | 广西玉柴机器股份有限公司 | Gas starting device of engine |
-
2008
- 2008-03-27 CN CNU2008200073727U patent/CN201162608Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545441B (en) * | 2008-03-27 | 2010-12-08 | 广西玉柴机器股份有限公司 | Gas starting device of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081210 Effective date of abandoning: 20080327 |