CN201162576Y - High-efficiency diesel fuel economizer for vehicles - Google Patents

Abstract

The utility model discloses a high-efficiency diesel oil economizer for vehicles, which comprises a pneumatic piston (1), a control circuit, a normally-off electromagnetic gas valve (2), and the pneumatic piston (2) comprises a piston sleeve (3), a piston rod (4) and the return spring (5), the outer end of the piston rod (4) links to each other with the push rod (8) of the flameout device of the engine oil delivery pump by a soft backguy (6) and a connecting piece (7) with an overcoat. The utility model adopts the principle of electric control combined with pneumatics, so that the diesel vehicle can keep in gear when going downhill, when it needs to slow down or use inertia to drive. Oil supply, the fuel saving rate reaches 15-25%. Its structure is compact, easy to install, easy to maintain, beneficial to environmental protection, and does not affect the normal use of the direction assist and vacuum assist devices. The performance is safe and reliable.

Description

High-efficiency diesel fuel economizer for vehicles

technical field

The utility model relates to a fuel-saving device for a diesel vehicle.

Background technique

When a diesel vehicle is running, the engine is often in a forced idling state, and the engine does not need fuel, but the fuel injector will Still inject idling fuel quantity in the cylinder, the engine does work ineffectively, not only wastes fuel oil, also makes burning worse, pollutes environment. In the prior art, there have been some studies on idling fuel saving, most of which can only save part of the fuel and have a complicated structure. The Chinese patent with the inventor number 200520034688.1 can completely cut off the idling fuel supply when no fuel supply is needed. The product The structure is also relatively complicated, the operation stability is poor, and the installation is inconvenient, which affects its popularization and use.

Utility model content

The problem to be solved by the utility model is to provide a high-efficiency diesel oil economizer for vehicles, which can keep diesel vehicles in gear when going downhill, decelerating or driving by inertia, and its idling fuel supply can be completely cut off, avoiding the The hazards of neutral sliding, its small size, easy installation, safe and reliable, high fuel saving rate.

The utility model includes the following technical solutions, including a pneumatic piston, a control circuit, and a normally-off electromagnetic valve. The pneumatic piston includes a piston sleeve, a piston rod and a return spring. The outer end of the piston rod is connected to the The sheet is connected with the push rod of the flame-out device of the engine fuel pump. The control circuit includes a power supply, a power switch, a clutch switch, and an accelerator switch. The clutch switch is a normally closed switch, and the clutch switch is located on the clutch pedal. The accelerator switch is a normally closed switch, and the accelerator switch is arranged on the accelerator pedal, and the two power terminals of the normally off electromagnetic gas valve are respectively connected with the accelerator switch and the ground wire, and the accelerator switch promptly disconnects the circuit when stepping on the accelerator. When the electromagnetic coil stops working, the normally-off electromagnetic air valve closes the air path; otherwise, the throttle is released, the throttle switch is connected to the circuit, and the normally-off electromagnetic air valve is connected to the air path; the air pipe joint of the pneumatic piston is installed on the normally-off electromagnetic air on the outlet of the valve.

The operating procedure and working principle of the utility model are as follows: under normal driving conditions, the engine supplies oil conventionally. The position for convenient operation) closes and connects the circuit, so that the control circuit enters the working state. When the car is going downhill, decelerating or driving by inertia, release the accelerator pedal without taking off the gear, and the accelerator switch is connected to the circuit, and the normally-off electromagnetic valve acts Connect the air circuit, the compressed air will flow into the piston cavity of the pneumatic piston immediately, the piston is pushed by the compressed air, the piston drives the piston rod to overcome the resistance of the return spring, and the piston rod pushes the engine fuel pump to turn off through the soft pull wire and the connecting piece The push rod of the device, so as to close the oil circuit; when it is necessary to drive normally, the above procedure is reversed, step on the accelerator pedal, the accelerator switch will disconnect the circuit, the normally-off electromagnetic valve will close the air circuit, and the piston will be in the direction of the return spring. Return under the action, and then drive the soft pull wire and the connecting piece through the piston rod, so that the push rod of the flameout device of the engine fuel pump is returned, thereby connecting the oil circuit and recovering the oil supply. The purpose of setting the clutch switch is to avoid the situation that the idling oil supply is cut off, when the emergency brake or the shifting operation is improper, the engine running by inertia is turned off, and the power can be restored instantly, which enhances its safety performance. The moment the clutch pedal is stepped on, the circuit is disconnected, the normally closed electromagnetic valve acts to close the gas circuit, and the piston rod returns to drive the push rod of the flameout device to return, that is, the oil supply is resumed.

Adopting the utility model has the following advantages:

1. The fuel-saving effect of the utility model is remarkable. Tests show that the fuel-saving rate of heavy-duty trucks is 20-25%, and the fuel-saving rate of light-duty vehicles is 15-20%. braking efficiency.

2. Its structure is simple, its volume is small and exquisite, and it is easy to maintain.

3. The flame extinguishing device is controlled by a soft pull wire mechanism, with more stable performance and more convenient installation.

4. This product adopts electric control combined with pneumatic principle, which is easy to use, safe and reliable. The idling oil supply can be completely cut off when there is no need for oil supply, and the oil supply can be instantly connected to restore the oil supply when oil is needed, which not only achieves the purpose of saving fuel, but also does not affect the normal use of the steering assist and power unit.

Description of drawings

Below in conjunction with embodiment the utility model is described in further detail.

Fig. 1 is a schematic diagram of an assembly principle of an embodiment of the present invention.

Fig. 2 is a schematic diagram of the structural principle of the normally-off electromagnetic valve and the pneumatic piston in an embodiment of the utility model.

Detailed ways

As shown in Figures 1 and 2, an embodiment of the utility model includes a pneumatic piston 1, a control circuit, and a normally-off electromagnetic valve 2, and the pneumatic piston 1 includes a piston sleeve 3, a piston rod 4 and a return spring 5, It is characterized in that: the outer end of the piston rod 4 is connected with the push rod 8 of the flameout device of the engine fuel pump through the soft pull wire 6 and the connecting piece 7 with a jacket, and the control circuit includes a power supply E, a power switch K1, and a clutch switch K2 , gas switch K3, the clutch switch K2 is a normally closed switch, the clutch switch K2 is located on the clutch pedal, the gas switch K3 is a normally closed switch, the gas switch K3 is located on the gas pedal, the normally The two power terminals of the off solenoid valve 2 are respectively connected to the accelerator switch K3 and the ground wire. When the accelerator is stepped on, the accelerator switch K3 will disconnect the circuit, the electromagnetic coil will stop working, and the normally off solenoid valve 2 will close the air circuit; otherwise Release the throttle, the throttle switch K3 is connected to the circuit, and the normally-off electromagnetic gas valve 2 is connected to the air circuit;

As shown in Fig. 1 and Fig. 2, the operating procedure and working principle of the present utility model are as follows: under normal driving conditions, the engine is normally supplied with oil. On the operation panel of the driver's cab, it can also be set at other convenient positions) to close and connect the circuit, so that the control circuit enters the working state. K3 is connected to the circuit, and the normally-off electromagnetic valve 2 acts to connect the air circuit, and the compressed air is then passed into the piston cavity of the pneumatic piston 1, the piston is pushed by the compressed air, and the piston drives the piston rod 4 to overcome the resistance of the return spring 5 and stretch out , the piston rod 4 pushes the push rod 8 of the flameout device of the engine oil delivery pump through the soft pull wire 6 and the connecting piece 7, thereby closing the oil circuit; That is, the circuit is disconnected, the normally closed electromagnetic gas valve 2 acts to close the gas circuit, the piston returns under the action of the return spring 5, and then the piston rod 4 drives the soft pull wire 6 and the connecting piece 7, so that the flameout device of the engine fuel pump The push rod 8 returns to its original position, thereby connecting the oil circuit and recovering the oil supply. The purpose of setting the clutch switch K2 is to prevent the idle fuel supply from being cut off, emergency braking or improper gear shifting, and the engine running by inertia to turn off, which can realize instant start and restore power, and enhance its safety performance. The moment the clutch pedal is stepped on, the circuit is disconnected, the normally closed solenoid valve 2 acts to close the gas circuit, and the piston rod 4 returns to drive the push rod 8 of the flame-out device to return, that is, the oil supply is resumed.

As an improvement of the utility model, it also includes a fuel-saving indicator light and a light switch K4 connected in series, the inlet end of the indicator light switch K4 is connected with the outlet end of the throttle switch K3, The outlet end is connected with the ground wire, and the outer end of the piston rod 4 is movably connected with the key of the indicator light switch K4. The outer end of the piston rod 4 is movably connected with the key of the indicator switch K4 to form a travel switch structure. When the fuel economizer is working, the outer end of the extended piston rod 4 turns on the indicator switch K4, and the indicator light is on; Otherwise, the outer end of the piston rod 4 retracts, the fuel economizer stops working, the indicator switch K4 is disconnected, and the indicator light goes out.

The utility model is not limited to the specific structures of the above-mentioned embodiments, and equivalent transformations of other similar structures all fall within the protection scope of the utility model.

Claims (2)

1, a kind of automobile-used efficient diesel fuel economizer, comprise pneumatic piston (1), control circuit, normal off electromagnetic gas valve (2), described pneumatic piston (1) comprises piston sleeve (3), piston rod (4) and return spring (5), it is characterized in that: described piston rod (4) outer end links to each other with the push rod (8) of the blanket of motor oil transfer pump with connecting sheet (7) by the soft drawn wire (6) that overcoat is arranged

Described control circuit comprises power supply (E), power switch (K1), clutch switch (K2), Oil Switch (K3);

Described clutch switch (K2) is a normally closed switch, and described clutch switch (K2) is located on the clutch pedal;

Described Oil Switch (K3) is a normally closed switch, and described Oil Switch (K3) is located on the gas pedal;

Two power-line terminals of described normal off electromagnetic gas valve (2) join with Oil Switch (K3) and ground wire respectively, Oil Switch when stepping on the gas (K3) disconnecting circuit, and electromagnetic coil quits work, and normal off electromagnetic gas valve (2) is promptly closed gas circuit; Otherwise unclamp throttle, Oil Switch (K3) is promptly connected circuit, and normal off electromagnetic gas valve (2) is connected gas circuit;

The gas-tpe fitting of described pneumatic piston is installed on the air outlet of normal off electromagnetic gas valve.

2, a kind of automobile-used efficient diesel fuel economizer according to claim 1, it is characterized in that: the fuel-economizing tutorial light and the indicator light switch (K4) that also comprise serial connection, the outlet terminal of the end of incoming cables of described indicator light switch (K4) and Oil Switch (K3) joins, the outlet terminal and the ground wire of described fuel-economizing tutorial light (K4) join, the movable connection of key of described piston rod (4) outer end and indicator light switch (K4).

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