CN205013185U - Automatic preheating device of diesel engine - Google Patents
Automatic preheating device of diesel engine Download PDFInfo
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- CN205013185U CN205013185U CN201520673711.5U CN201520673711U CN205013185U CN 205013185 U CN205013185 U CN 205013185U CN 201520673711 U CN201520673711 U CN 201520673711U CN 205013185 U CN205013185 U CN 205013185U
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- heater
- controller
- jacket
- water
- diesel engine
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Abstract
The utility model discloses an automatic preheating device of diesel engine, its structure is: left lower extreme and left end lateral wall at cylinder cover water sleeve are equipped with heater plug and water jacket heater respectively, and the water temperature sensor assembly is in the tiny loop water route of the temperature saver body. The controller is restrainted through circuit line and is connect respectively to heater plug, water jacket heater and temperature sensor's power supply interface. Heater plug and water jacket heater heat the air that gets into the combustion chamber jointly, according to the temperature signal of water temperature sensor output, and automatic break -make and the heat time who judges heater plug and water jacket heater of controller. The controller can be according to engine jacket water temperature automatic adjustment preheating time to the operating condition of automatic control heater plug and water jacket heater. Work steadily softly, can effectively reduce the wearing and tearing of parts during the cold -starting diesel engine, has lengthened engine service life in the fuel saving. The device still has simple installation, safe and reliable, easy maintenance and energy -conserving advantage.
Description
Technical field
The utility model belongs to engine components, is specifically related to a kind of device to carrying out automatic preheating under diesel engine low temperature.
Background technique
Cold-start performance is the important indicator of the technical merit weighing diesel engine, is also one of principal element determining diesel engine using scope simultaneously.As everyone knows, because engine oil viscosity under low-temperature condition increases when diesel engine in the winter time or severe cold area is started, engine crankshaft rotational resistance increases, and causes starting speed to reduce.Low temperature also can make gasification of fuel oil or mix bad, and makes storage battery drops, and the oil consumption rate of motor also can increase.So improve start-up temperature, for the performance improving motor, there is important relationship.
The pre-heating system of usual diesel engine mainly adopts low temperature air inlet preheating and cryogenic engine preheating.Charge heating method is the initial temperature by improving charge, different by mode of heating, can be divided into flame preheat and electric preheating.Flame preheat effect is better, but has the complicated defect accurately controlling difficulty of device; Electric preheating structure is simple but have the little shortcoming of warm-up power.In addition still have fuel heater pre-heating system, circulating cooling liquid and machine oil can be heated simultaneously, cold starting is effective, but structure installment is oversize, is mainly used on big-block engine.The utility model by a kind of method low temperature air inlet preheating and Heating Cyclic cooling liquid combined of proposition, and can carry out automatic temperature-adjusting control.
Summary of the invention
The purpose of this utility model is, provides a kind of device to carrying out automatic preheating under diesel engine low temperature.
Technical solution adopted in the utility model is for achieving the above object: diesel engine automatic preheater comprises: cylinder cover water jacket, heater plug, jacket heater, temperature transducer, thermostat body, ground wire, pre-thermal light, controller, relay, starter motor, storage battery, generator and key door etc.At the lower-left end of cylinder cover water jacket, heater plug is housed, the left end sidewall of cylinder cover water jacket is equipped with jacket heater, and cooling-water temperature sensor is assemblied in the short circle water route of thermostat body.Controller is connected to the power supply interface of heater plug, jacket heater and temperature transducer respectively by circuit bundle.
If during the start-up temperature value of the coolant temperature in diesel engine temperature saving body lower than default, after connecting key door circuit, follow procedure is carried out automatic preheating and heats by the jacket heater of this device and glow plug, and controller adjusts preheat time automatically according to engine water sleeving temperature height.The air temperature entered in firing chamber can be improved fast by heater plug, cylinder cover water jacket heater, the motor quick starting of low-temperature condition can be made.
Feature of the present utility model and beneficial effect are: the mounting point of heater plug, jacket heater and cooling-water temperature sensor is rationally ingenious, do not have an impact to the assembly space of external engine.Controller is integrated circuit electronic device, automatically can adjust preheat time according to engine water sleeving temperature, thus the working state of automatic control pre-heating plug and jacket heater.During cold-starting heavy-oil machine, stable working is soft, effectively can reduce the wearing and tearing of parts, while fuel saving, extend service life of aeroengine.This device also has simple installation, safe and reliable, easy to maintenance and energy-conservation advantage.
Accompanying drawing explanation
Fig. 1 is the mounting point figure of heater plug and jacket heater on cylinder cover water jacket in the utility model.
Fig. 2 is the mounting point figure of cooling-water temperature sensor on cylinder cover water jacket in the utility model.
Fig. 3 is the circuit catenation principle figure of the utility model middle controller.
Embodiment
Structure of the present utility model and principle to be further described by embodiment below in conjunction with accompanying drawing.
Diesel engine automatic preheater, comprising: cylinder cover water jacket, heater plug, jacket heater, temperature transducer, thermostat body, ground wire, pre-thermal light, controller, relay, starter motor, storage battery, generator and key door etc.Its structure consists of: at the lower-left end of cylinder cover water jacket 1, heater plug 2 is housed, and the left end sidewall of cylinder cover water jacket is equipped with jacket heater 3, and cooling-water temperature sensor 4 is assemblied in the short circle water route of thermostat body 5.Controller 8 is connected to the power supply interface of heater plug, jacket heater and temperature transducer respectively by circuit bundle.
The connection scheme of controller circuitry is (as Fig. 3): the PD output terminal being connected to controller after heater plug is in parallel with the power supply interface of jacket heater; The circuit interface of temperature transducer is connected to RT (temperature and resistance) end of controller; The ground wire 6 of cylinder cover water jacket is connected to U end (voltage) negative pole of controller; Pre-thermal light 7 is connected to L end (tutorial light) of controller.Storage battery 11 is connected to after the PD input end of controller and the circuit in parallel of key door 13; Controller is connected to relay 9 and corresponding starter motor 10.
The heater plug of this device and jacket heater heat the air entering firing chamber jointly, according to the temperature signal that cooling-water temperature sensor exports, and the break-make of controller automatic decision heater plug and jacket heater and heating time.
The power circuit of starter motor is connected with generator 12, by the break-make of relay as switch control rule generator and starter motor.
As embodiment, heater plug is arranged on the side of cylinder head water jacket oil sprayer, according to car load electrical equipment condition, heater plug can be 12V or 24V, be energized in 15 seconds, glow plug temperature can reach 850 DEG C-1050 DEG C, can be heated by the cool air of engine combustion indoor fast.Jacket heater is arranged in the sidewall of cylinder cover water jacket, selects the power of heater according to engine water jacket water capacity, in 15 seconds by water jacket water temp. heating around firing chamber to applicable temperature, and then reach the object of heated engine, be beneficial to engine start.Cooling-water temperature sensor is arranged on diesel engine temperature saving body, and position ensures in short circle water route, and guarantee can accurate perception engine water jacket water temperature.According to the wire harness of Fig. 3 circuit catenation principle figure exact connect ion heater plug, jacket heater, cooling-water temperature sensor, controller etc.
The all-electronin device of controller to be a kind of with intergrated circuit be core, automatically preheat time can be adjusted according to engine water sleeving temperature height, by the temperature transducer in water jacket by electrical signal to controller, inner electronic circuit calculates preheat time automatically according to this signal, thus the current"on"time of automatic control pre-heating plug, jacket heater.Engine temperature is low, and preheat time is long, otherwise preheat time is short.Accurately can control preheat time like this, improve motor starting characteristic, again can current"on"time of reasonable distribution heater plug and heater, effectively increase the service life, and starter motor can be made, storage battery obtains Reasonable Protection.Environmentally controller is carried out temperature setting by temperature, can onset time of setting controller and heating how long.After key door forwards preheating shelves to, controller carries out carrying out temperature judgement according to temperature transducer, determines whether work under current environmental temperature,
When engine start, after key operation being screwed into work shelves (ON), suspend 2-3 second, as pre-thermal light is lighted, the temperature value that now thermostat body coolant temperature sets lower than device is described, system is carried out automatic preheating and is heated.When pre-thermal light is glittering, can pilot engine, electronic preheating device will proceed to rear heating process automatically.If think preheat starting again, then need to close electric switch key after 3 seconds, then repeat above-mentioned steps.For improving discharge, after engine start, pre-thermal light continues glittering, and follow procedure still heats by glow plug, then will automatically close.
Claims (4)
1. diesel engine automatic preheater, comprise: cylinder cover water jacket, heater plug, jacket heater, temperature transducer, thermostat body, ground wire, pre-thermal light, controller, relay, starter motor, storage battery, generator and key door, it is characterized in that: at the lower-left end of cylinder cover water jacket (1), heater plug (2) is housed, jacket heater (3) the left end sidewall of cylinder cover water jacket is equipped with, cooling-water temperature sensor (4) is assemblied in the short circle water route of thermostat body (5), controller (8) is connected to heater plug respectively by circuit bundle, the power supply interface of jacket heater and temperature transducer.
2. according to diesel engine automatic preheater according to claim 1, it is characterized in that: the PD output terminal being connected to described controller after described heater plug is in parallel with the power supply interface of jacket heater; The circuit interface of temperature transducer is connected to the RT end of controller; The ground wire (6) of cylinder cover water jacket is connected to the U end negative pole of controller; Pre-thermal light (7) is connected to the L end of controller; Storage battery (11) is connected to after the circuit in parallel of the PD input end of controller and key door (13); Controller is connected to relay (9) and corresponding starter motor (10).
3. according to the diesel engine automatic preheater described in claim 1 or 2, it is characterized in that: described heater plug and jacket heater heat the air entering firing chamber jointly, according to the temperature signal that described cooling-water temperature sensor exports, the break-make of described controller automatic decision heater plug and jacket heater and heating time.
4. according to the diesel engine automatic preheater described in claim 1 or 2, it is characterized in that: the power circuit of described starter motor is connected with generator (12), by the break-make of described relay as switch control rule generator and starter motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520673711.5U CN205013185U (en) | 2015-09-01 | 2015-09-01 | Automatic preheating device of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520673711.5U CN205013185U (en) | 2015-09-01 | 2015-09-01 | Automatic preheating device of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013185U true CN205013185U (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520673711.5U Active CN205013185U (en) | 2015-09-01 | 2015-09-01 | Automatic preheating device of diesel engine |
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| Country | Link |
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| CN (1) | CN205013185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134444A (en) * | 2015-09-01 | 2015-12-09 | 东风朝阳朝柴动力有限公司 | Diesel engine automatic preheating device |
-
2015
- 2015-09-01 CN CN201520673711.5U patent/CN205013185U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134444A (en) * | 2015-09-01 | 2015-12-09 | 东风朝阳朝柴动力有限公司 | Diesel engine automatic preheating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Diesel engine automatic preheating device Effective date of registration: 20190612 Granted publication date: 20160203 Pledgee: Lingyuan steel enterprise limited liability company Pledgor: Dongfeng Chaoyang Chaochai Power Co., Ltd. Registration number: 2019210000021 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |