CN109184975A - A kind of fuel oil thermostat valve and vehicle fuel temperature control system - Google Patents

A kind of fuel oil thermostat valve and vehicle fuel temperature control system Download PDF

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Publication number
CN109184975A
CN109184975A CN201811287451.2A CN201811287451A CN109184975A CN 109184975 A CN109184975 A CN 109184975A CN 201811287451 A CN201811287451 A CN 201811287451A CN 109184975 A CN109184975 A CN 109184975A
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CN
China
Prior art keywords
connector
valve
fuel oil
fuel
wax formula
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CN201811287451.2A
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CN109184975B (en
Inventor
黄瑞
隋大为
吴晓飞
李干明
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DONGFENG FUJI THOMSON THERMOSTAT Co LTD
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DONGFENG FUJI THOMSON THERMOSTAT Co LTD
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Priority to CN201811287451.2A priority Critical patent/CN109184975B/en
Publication of CN109184975A publication Critical patent/CN109184975A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023Valves in the fuel supply and return system
    • F02M37/0035Thermo sensitive valves

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

The present invention relates to vehicle fuel systems technology fields, disclose a kind of fuel oil thermostat valve, including being equipped with the first connector being mutually communicated, the wax formula triple valve of second connector and third connector, wax formula inductor is installed in the hole of the first connector, the induction end of wax formula inductor is extend out to outside the first connector, the other end of wax formula inductor is equipped with push rod, push rod resists the valve slided in the hole of the first connector, the valve other end is equipped with the first spring for resisting valve, the first valve port cooperated with valve is equipped in first connector, the second valve port in second connector equipped with pressure valve and with pressure valve cooperation, the second spring inwardly against pressure valve is equipped in second connector.The invention also discloses a kind of vehicle fuel temperature control systems using above-mentioned fuel oil thermostat valve.A kind of fuel oil thermostat valve of the present invention and vehicle fuel temperature control system control high temperature oil return and enter filter or fuel tank, improve winter vehicle performance according to the temperature of fuel oil in filter.

Description

A kind of fuel oil thermostat valve and vehicle fuel temperature control system
Technical field
The present invention relates to vehicle fuel systems technology fields, and in particular to a kind of fuel oil thermostat valve and vehicle fuel temperature control system System.
Background technique
Power source of the fuel system as vehicle is an indispensable system in engine work, main Effect is storage, filtering and the transportation work for completing fuel.
After the fuel oil in fuel system comes out from fuel tank, filter filtering is first passed around, using fuel pump, fine filtering Device and high-pressure oil pump enter fuel injection system.In winter, filter wax deposition is easy to cause since fuel oil temperature is too low, And then cause fuel system fuel oil can not normal circulation, eventually leading to automobile can not start.
Chinese utility model patent application (publication date: 06 month 2012 06 day, publication number: CN202266352U) discloses A kind of automatic heating temperature control means of oil way of diesel vehicle comprising by Vehicular accumulator cell, oil-way pipe, diesel fuel filter, resistance wire And temperature detect switch (TDS), carbon fiber exothermic wire layer is entrained in the tube wall of oil-way pipe, the Vehicular accumulator cell, resistance wire, temperature control are opened It closes and the series connection of carbon fiber exothermic wire layer is formed into a loop, wherein resistance wire and temperature detect switch (TDS) are arranged in diesel fuel filter.Change bavin The automatic heating temperature control means of oily vehicle oil circuit can make the diesel fuel temperature in oil way of diesel vehicle is moderate to be maintained at most suitable range It is interior, avoid diesel oil solidification wax deposition blocking oil circuit.But the utility model is to be heated by external heat source to oil circuit, wastes energy Source.
Meanwhile in fuel system, having 50% or so fuel oil, (temperature of referred to herein as oil return, oil return is higher, general meeting Reach 100 DEG C or so) fuel tank can be returned to, cool down the high temperature oil return in fuel tank, this partial heat can not It is utilized and is wasted.
Summary of the invention
The purpose of the present invention is to the deficiency of above-mentioned technology, a kind of fuel oil thermostat valve and vehicle fuel temperature control system are provided System, according to the temperature of fuel oil in the filter sensed, automatically controlling high temperature oil return to enter filter is that fuel oil adds in filter After temperature prevents wax deposition, while fuel oil temperature is met the requirements in filter, automatically controls high temperature oil return and enter fuel tank by high temperature Oil return heat dissipation avoids fuel oil in filter from overheating, improves winter vehicle performance.
To achieve the above object, a kind of fuel oil thermostat valve designed by the present invention connects including being equipped be mutually communicated first The wax formula triple valve of head, the second connector and third connector, the first connector, the second connector and third connector are equipped with hole, and first connects Wax formula inductor is installed in the hole of head, described first can be extend out to temperature sensor, the induction end of the wax formula inductor and connect Head is outer, and the other end of the wax formula inductor is equipped with push rod, and the push rod resists the valve slided in the hole of first connector Door, the wax formula inductor and push rod are the power resources that the valve slides in first connector, and the valve is another End, which is equipped with, resists the first spring of the valve, valve described in first spring supporting and return, sets in first connector There is the first valve port with valve cooperation;In second connector equipped with pressure valve and with pressure valve cooperation the Two valve ports, are equipped with the second spring inwardly against the pressure valve in second connector, and the pressure valve is described the Support and sealing are realized under the action of two springs.
Preferably, first valve port is the groove being opened in first inner nosepiece wall, the groove and the valve The cross-sectional area of sliding section cooperation side is gradually increased outward along first connector central axes direction, the number of recesses At least one.
Preferably, exhaust passage, the air inlet of the exhaust passage and exhaust are provided in the valve wall of the wax formula triple valve Hole is located at the two sides of second valve port, the gas vent and second fittings, and the air inlet is located at described The highest point of three connector intersections when wax formula triple valve is horizontal positioned, convenient for air to be discharged from second connector.
Preferably, the side of the groove and valve sliding section cooperation is hierarchic structure, and the groove is described in First connector central axes direction extend outwardly concordant with the end of first connector.
Preferably, second joint screw thread is connected with connector, and the second spring is against on the connector.
Preferably, the end interference of first connector is equipped with end cap, and the end cap resists the wax formula inductor, right The wax formula inductor plays a supportive role, and is lined with the first sealing ring between the end cap and the third connector, outside the end cap It places and is equipped with third sealing ring, realize sealing.
Preferably, the valve is equipped with push-rod hole, and the push rod is against on the push-rod hole, improves the valve Positioning accuracy.
Preferably, it is lined with the second sealing ring between the connector and second connector, realizes sealing.
A kind of vehicle fuel system temperature control system, including engine, the oil return switching valve, fuel oil being sequentially connected in a closed loop mode from beginning to end Case, oil inlet switching valve, filter and oil transfer pump further include fuel oil thermostat valve, the first connector of the fuel oil thermostat valve with it is described Filter connection, the second connector of the fuel oil thermostat valve are connect with the oil return switching valve, the third of the fuel oil thermostat valve Connector is connect with the engine oil return mouth, and the wax formula inductor in first connector is by incuding fuel oil in the filter Temperature, control the push rod and whether push the valve, and then control the high temperature oil return entrance flowed by the third connector Filter is fuel heating in filter, or enters fuel tank and radiate by high temperature oil return.
Compared with prior art, the present invention having the advantage that
1, the temperature of fuel oil in the filter sensed by wax formula inductor automatically controls high temperature oil return and enters filter For fuel heating in filter, wax deposition is prevented, while after fuel oil temperature is met the requirements in filter, automatically controls high temperature oil return It radiates into fuel tank by high temperature oil return, avoids fuel oil in filter from overheating, improve winter vehicle performance;
2, by the variation of groove cross section area, groove slowly closing may be implemented, subtract high temperature return flow slowly Less or increase, interior oil hinders gradual change rather than transition, is finally reached internal fuel system and stablizes;
3, by the combination of valve and the first valve port, when wax formula inductor does not work, the first valve port is in the open state, When wax formula inductor works, with the heating of fuel oil in filter, the first valve port is gradually closed, the realization of valve function and general Thermostat valve is on the contrary, realize Reversal valve;
4, by the setting of exhaust passage and air inlet, convenient for mixed air in high temperature oil return is expelled to fuel tank, Prevent air from entering filter;
5, by the first spring of setting and second spring, the self-return of valve and pressure valve is realized.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of fuel oil thermostat valve of the present invention;
Fig. 2 is structural schematic diagram when a kind of fuel oil thermostat valve high temperature oil return of the present invention flows to filter;
Structural schematic diagram when Fig. 3 is a kind of fuel oil thermostat valve state conversion of the invention;
Fig. 4 is structural schematic diagram when a kind of fuel oil thermostat valve high temperature oil return of the present invention flows to fuel tank;
Fig. 5 is a kind of structural schematic diagram of vehicle fuel temperature control system of the present invention.
Each part numbers are as follows in figure:
First connector 1, the second connector 2, third connector 3, wax formula triple valve 4, wax formula inductor 5, push rod 6, valve 7, One spring 8, pressure valve 9, the second valve port 10, second spring 11, groove 12, air inlet 13, connector 14, end cap 15, first are close Seal 16, third sealing ring 17, push-rod hole 18, the second sealing ring 19.
Specific embodiment
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, a kind of fuel oil thermostat valve of the present invention, including being equipped with the first connector 1, the second connector 2 that are mutually communicated With the wax formula triple valve 4 of third connector 3, wax formula inductor 5, the induction end of wax formula inductor 5 are installed in the hole of the first connector 1 It extend out to outside the first connector 1, the other end of wax formula inductor 5 is equipped with push rod 6, and push rod 6 is resisted to be slided in the hole of the first connector 1 Valve 7, valve 7 is equipped with push-rod hole 18, and push rod 6 is against on push-rod hole 18, and 7 other end of valve, which is equipped with, resists the of valve 7 One spring 8, the first connector 1 are interior equipped with the first valve port cooperated with valve 7;Pressure valve 9 and and pressure are equipped in second connector 2 The second valve port 10 that valve 9 cooperates, the interior second spring 11 being equipped with inwardly against pressure valve 9 of the second connector 2.
As shown in Fig. 2, the first valve port is the groove 12 being opened on 1 inner wall of the first connector, groove 12 and valve 7 slide section The cross-sectional area of cooperation side is gradually increased outward along 1 central axes direction of the first connector, and in the present embodiment, 12 quantity of groove is Two, and it is hierarchic structure that groove 12 and valve 7, which slide the side of section cooperation, groove 12 is along 1 central axes direction of the first connector Extend outwardly concordant with the end of the first connector 1.
In addition, as shown in Fig. 2, be provided with exhaust passage in the valve wall of wax formula triple valve 4, the air inlet 13 of exhaust passage and row Stomata is located at the two sides of the second valve port 10, and gas vent is connected to the second connector 2, and air inlet 13 is located at 4 water of wax formula triple valve The highest point of three connector intersections when placing flat prevents sky convenient for mixed air in high temperature oil return is expelled to fuel tank Gas enters filter.
In the present embodiment, the second connector 2 is threaded with connector 14, and it is close to be lined with second between connector 14 and the second connector 2 Seal 19, the piping connection of connector 14 and fuel tank, second spring 11 are against on connector 14, the end interference peace of the first connector 1 Equipped with end cap 15, end cap 15 resists wax formula inductor 5, plays a supportive role to wax formula inductor 5, end cap 15 and the first connector 1 it Between be lined with the first sealing ring 16, realize the sealing of end cap 15 and the first connector 1, end cap 15 is placed equipped with third sealing ring 17 outside, When the first connector 1 is connect with filter, the radial seal of the first connector 1 and filter is realized.
As shown in figure 5, a kind of vehicle fuel system temperature control system, including be sequentially connected in a closed loop mode from beginning to end engine, oil return Switching valve, fuel tank, oil inlet switching valve, filter and oil transfer pump further include fuel oil thermostat valve, the first connector of fuel oil thermostat valve 1 connect with filter, and the second connector 2 of fuel oil thermostat valve is connect with oil return switching valve, the third connector 3 and hair of fuel oil thermostat valve The connection of motivation oil return opening.
The present embodiment cooperates valve 7 and pressure valve 9 to form by the first connector 1, the second connector 3 and third connector 4 Two high temperature oil return circulation paths, path one are that high temperature oil return flows to filter, are the fuel oil heating in filter, path two is High temperature oil return flows to fuel tank, makes high temperature oil return that fuel tank be gone to radiate.
The specific working principle is as follows:
Since the fuel oil in filter comes from fuel tank, the fuel oil temperature in filter is substantially and in fuel tank Fuel oil temperature is consistent, and after the present embodiment is completed, wax formula inductor 5, which protrudes into, incudes fuel oil temperature, such as Fig. 1 in filter Shown, when the fuel oil temperature in filter is too low, for lower than 30 DEG C in the present embodiment, wax formula inductor 5 is not turned on, and at this time the One spring 8 resists valve 7, and valve 7 is located at the widest part of groove 12, and groove 12 is in the open state, meanwhile, second spring 11 is supported Firmly pressure valve 9, pressure valve 9 are closed, and the high temperature oil return that engine is up to 100 DEG C or so enters wax formula three through third connector 3 In port valve 4, the first connector 1 is then flowed out by groove 12, into filter, high temperature oil return at this time will in filter with filtering Low temperature fuel oil mixing inside device, it is final to realize the effect for improving low temperature fuel oil temperature, so that fuel economy be allowed to improve;
When the fuel oil temperature in filter gradually rises, as shown in figure 3, wax formula inductor 5 is gradually opened, push rod 6 is pushed away Movable valve 7 slides inwardly in the first connector 1, due to the cross-sectional area of groove 12 and the sliding of valve 7 section cooperation side It is gradually increased, i.e., is inwardly gradually reduced, therefore groove 12 is gradually closed, high temperature oil return outward along 1 central axes direction of the first connector It is gradually become smaller by the flow that groove 12 flows out the first connector 1 into filter, while under the action of oil pressure, pressure valve 9 It is gradually opened, high temperature oil return flows out the second connector 2 after passing through pressure valve 9, radiates into fuel tank, and flow gradually increases Greatly;
It is higher than 40 DEG C, as shown in figure 4, in filter when the fuel oil temperature in filter is excessively high, in the present embodiment Fuel oil no longer needs high temperature oil return to promote temperature, because the fuel oil itself at this time in filter is in a kind of higher temperature, Wax formula inductor 5 reaches full-gear, and push rod 6 pushes valve 7 to slide into extreme position, push rod 6 inwardly in the first connector Valve 7 is pushed out to outside groove 12, groove 12 is in close state, and the high temperature oil return of engine enters wax through third connector 3 In formula triple valve 4, it is no longer flow towards filter, and under the action of oil pressure, pressure valve 9 is fully open, and high temperature oil return is whole By flowing out the second connector 2 after pressure valve 9, radiate into fuel tank.
Due to groove 12 and valve 7 slide the cross-sectional area of section cooperation side along 1 central axes direction of the first connector to It is gradually increased, i.e., is inwardly gradually reduced outside, when the fuel oil temperature variation in filter, valve 8 slides in the first connector 1, Groove 12 can be opened or closed slowly, keep the changes in flow rate of high temperature oil return slow, and interior oil hinders gradual change rather than transition, finally Reach internal fuel system to stablize.
A kind of working principle of vehicle fuel system temperature control system of the present invention is as shown in figure 5, the high temperature flowed out from engine Oil return passes through oil return switching valve all the way and is directly entered fuel tank, and another way enters fuel oil thermostat valve by third connector 3, works as filtering When fuel oil temperature in device is too low, high temperature oil return enters filter by the first connector 1, is the fuel heating in filter, when When fuel oil temperature in filter gradually rises, control by wax formula inductor 5 to valve 7, and then control fuel oil thermostat valve Interior high temperature oil return is gradually increased the flow for flowing to fuel tank, reduces the flow for flowing to filter, until the fuel oil in filter When the temperature is excessively high, fuel tank is all flowed into the high temperature oil return in fuel oil thermostat valve.
A kind of fuel oil thermostat valve of the present invention and vehicle fuel temperature control system are by applying wax formula inductor 5 in Fuel System System automatically controls high temperature oil return and enters filter or fuel tank, is fuel heating in filter, or high temperature oil return is allowed to remove fuel tank The control of fuel oil temperature is realized in heat dissipation, improves winter vehicle performance;It wherein, can be with by the variation of 12 cross-sectional area of groove It realizes 12 slowly closing of groove, reduces flow slowly, interior oil hinders gradual change rather than transition, is finally reached internal fuel system Stablize;And pass through the combination of valve 7 and groove 12, when wax formula inductor 5 does not work, groove 12 is in the open state, wax formula Groove 12 is in close state when inductor 5 works, and the realization of the function of valve 7 and general thermostat valve are on the contrary, realize reverse Valve.

Claims (9)

1. a kind of fuel oil thermostat valve, including being equipped with the first connector (1), the second connector (2) and the third connector (3) that are mutually communicated Wax formula triple valve (4), it is characterised in that: wax formula inductor (5), the wax formula inductor are equipped in the hole of the first connector (1) (5) induction end extend out to first connector (1) outside, and the other end of the wax formula inductor (5) is equipped with push rod (6), described Push rod (6) resists the valve (7) slided in the hole of first connector (1), and valve (7) other end is described equipped with resisting The first spring (8) of valve (7), is equipped with the first valve port cooperated with the valve (7) in first connector (1), and described the The second valve port (10) in two connectors (2) equipped with pressure valve (9) and with the pressure valve (9) cooperation, second connector (2) second spring (11) inwardly against the pressure valve (9) is equipped in.
2. fuel oil thermostat valve according to claim 1, it is characterised in that: first valve port is to be opened in first connector (1) cross-sectional area of the groove on inner wall (12), the groove (12) and the valve (7) sliding section cooperation side is along institute It states the first connector (1) central axes direction to be gradually increased outward, groove (12) quantity is at least one.
3. fuel oil thermostat valve according to claim 1 or claim 2, it is characterised in that: be provided in the valve wall of the wax formula triple valve (4) Exhaust passage, the air inlet (13) and gas vent of the exhaust passage are located at the two sides of second valve port (10), described Gas vent is connected to second connector (2), and the air inlet (13) is located at when the wax formula triple valve (4) is horizontally arranged three The highest point of connector intersection.
4. fuel oil thermostat valve according to claim 3, it is characterised in that: the groove (12) and the valve (7) sliding area Between the side that cooperates be hierarchic structure, the groove (12) along the first connector (1) central axes direction extend outwardly with it is described The end of first connector (1) is concordant.
5. fuel oil thermostat valve according to claim 4, it is characterised in that: second connector (2) is threaded with connector (14), the second spring (11) is against on the connector (14).
6. fuel oil thermostat valve according to claim 5, it is characterised in that: the end interference of first connector (1) is equipped with End cap (15), the end cap (15) resists the wax formula inductor (5), between the end cap (15) and first connector (1) It is lined with the first sealing ring (16), places outside the end cap (15) equipped with third sealing ring (17).
7. fuel oil thermostat valve according to claim 6, it is characterised in that: the valve (7) is equipped with push-rod hole (18), described Push rod (6) is against on the push-rod hole (18).
8. fuel oil thermostat valve according to claim 7, it is characterised in that: the connector (14) and second connector (2) it Between be lined with the second sealing ring (19).
9. a kind of vehicle fuel system temperature control system, including engine, the oil return switching valve, fuel oil being sequentially connected in a closed loop mode from beginning to end Case, oil inlet switching valve, filter and oil transfer pump, it is characterised in that: it further include fuel oil thermostat valve, the first of the fuel oil thermostat valve Connector (1) is connect with the filter, and the second connector (2) of the fuel oil thermostat valve is connect with the oil return switching valve, described The third connector (3) of fuel oil thermostat valve is connect with the engine oil return mouth.
CN201811287451.2A 2018-10-31 2018-10-31 Fuel temperature control valve and vehicle fuel temperature control system Active CN109184975B (en)

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CN109184975B CN109184975B (en) 2024-03-22

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN112796899A (en) * 2020-12-31 2021-05-14 河北中瓷电子科技股份有限公司 Fuel filter control device

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