CN103807082A - Pre-heating device for engineering machinery - Google Patents
Pre-heating device for engineering machinery Download PDFInfo
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- CN103807082A CN103807082A CN201310502790.9A CN201310502790A CN103807082A CN 103807082 A CN103807082 A CN 103807082A CN 201310502790 A CN201310502790 A CN 201310502790A CN 103807082 A CN103807082 A CN 103807082A
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Abstract
Provided is a pre-heating device for an engineering machinery, which can enable a heating mechanism to work appropriately to improve the startability of an engine even with a heating machine capable of heating refrigerant of the engine. The pre-heating device for an engineering machinery comprises a heating device (150) conducting pre-heating on an engine (190) directly connected to a hydraulic pump (130), a work oil temperature sensor (163) which detects the temperature (To) of work oil discharged from the hydraulic pump (130), and a controller (120) which controls the work of the heating device (150) based on the temperature (To) of work oil, detected by the work oil temperature sensor (163).
Description
Technical field
The present invention relates to the Preheating unit of the engineering machinery such as hydraulic shovel.
Background technique
In the past, known a kind of Preheating unit (with reference to patent documentation 1) that makes to generate heat mechanism's work in the time of engine cold starting and improve the startability of motor.In the Preheating unit of patent documentation 1, judge the energising requirement that has or not glow plug (glow plug) according to the temperature of the cooling water of motor (refrigeration agent).
Prior art document
Patent documentation 1: TOHKEMY 2008-138582 communique
In the engineering machinery that oil hydraulic pump and engine direct are tied in succession, in the time of engine cold starting, the friction of oil hydraulic pump is stronger, and the startability of motor is poor.Thus, the mechanism that need to make to generate heat works in the time of cold starting.
For engineering machinery, exist the situation of cooling water heater is set in severe cold area, and have operator's situation of heated engine cooling water in advance before engine start.Thus, as described in the technology of recording as patent documentation 1, if judge the words of the necessity of heating mechanism work according to the temperature of engine cooling water, in the situation that having improved cooling water temperature by cooling water heater, although there is the state lower in working oil temperature, also idle problem of heating mechanism.
Summary of the invention
The invention of technological scheme one provides a kind of Preheating unit of engineering machinery, it is characterized in that, has: the heating mechanism that carries out the preheating of the motor directly linking with oil hydraulic pump; Detect the working oil temperature feeler mechanism of the temperature of the working oil of being discharged by oil hydraulic pump; With the temperature of basis by the detected working oil of working oil temperature feeler mechanism, control the control mechanism of the work of heating mechanism.
The invention of technological scheme two is characterised in that, in the Preheating unit of the engineering machinery described in technological scheme one, control mechanism is along with lower by the temperature of the detected working oil of working oil temperature feeler mechanism, and the operating time of heating mechanism is set longlyer.
The invention of technological scheme three is characterised in that, in the Preheating unit of the engineering machinery described in technological scheme one or technological scheme two, also have the refrigerant temperature feeler mechanism that the temperature of the refrigeration agent to cooled engine detects, control mechanism has: the first determination means that decided for the first preheat time according to the temperature of working oil; Decide the second determination means of the second preheat time according to the temperature of refrigeration agent; Select long side's of time in the first preheat time and the second preheat time selection mechanism; The operation mechanism that mechanism only works with the preheat time of being selected by selection mechanism makes to generate heat; With at heating mechanism duration of work, report heating mechanism is in the report mechanism in work.
Invention effect
According to the present invention, even in the case of having the heater that the refrigeration agent of motor is heated, the mechanism that also can make to generate heat works rightly and improves the startability of motor.
Accompanying drawing explanation
Fig. 1 is the side view that has represented to be suitable for the hydraulic shovel of Preheating unit of the present invention.
Fig. 2 is the figure that represents the formation of the Preheating unit of the first mode of execution of the present invention.
Fig. 3 is the figure that represents table working oil temperature-preheat time.
Fig. 4 is the flow chart that represents an example of the warm-up control processing of being undertaken by the Preheating unit of the first mode of execution of the present invention.
Fig. 5 is the figure that represents the formation of the Preheating unit of the second mode of execution of the present invention.
In Fig. 6, (a) being the figure that represents table working oil temperature-preheat time, is (b) figure that represents table cooling water temperature-preheat time.
Fig. 7 is the flow chart that represents an example of the warm-up control processing of being undertaken by the Preheating unit of the second mode of execution of the present invention.
Fig. 8 is the flow chart that represents an example of the warm-up control processing of being undertaken by the Preheating unit of variation of the present invention.
Fig. 9 be represent in the controller of the Preheating unit that is stored in variation of the present invention working oil temperature-preheat time table figure.
Description of reference numerals
100-hydraulic shovel,
101-runner,
103-solid of rotation,
104-anterior device,
105-oil hydraulic circuit,
107-operator cabin,
108-engine compartment,
109-counterweight,
120-controller,
121-oil temperature benchmark determination section,
124-job control portion,
130-oil hydraulic pump,
130a-regulator,
134-ignition switch,
139-aura tutorial light,
The 140-unit that heats,
150-glow plug (electro-heat equipment),
160-cooling water heater,
163-working oil temperature sensor,
190-motor,
199-fuel tank,
220-controller,
222-water temperature benchmark determination section,
223-selection portion,
264-cooling-water temperature sensor.
Embodiment
Below, with reference to accompanying drawing, a mode of execution of the engineering machinery that has been suitable for Preheating unit of the present invention is described.
The-the first mode of execution-
Fig. 1 is the side view that has represented to be suitable for the hydraulic shovel 100 of Preheating unit of the present invention.In addition, for convenience of explanation, regulation front and back and above-below direction as illustrated in fig. 1.
Preheating unit is for example applicable in the engineering machinery such as hydraulic shovel.As shown in Figure 1, hydraulic shovel 100 has runner 101 and can be mounted in rotatably the solid of rotation 103 on runner 101.Be provided with anterior device 104 in the front portion of solid of rotation 103.
On the framework of solid of rotation 103, be equipped with operator cabin 107, contain engine compartment 108 and the counterweight 109 of motor 190.Engine compartment 108 is configured in the rear of operator cabin 107, and counterweight 109 is configured in the rear of engine compartment 108.Engine compartment 108 covers lid by structure.
Fig. 2 is the figure that represents the formation of Preheating unit.The oil hydraulic pump 130 that hydraulic shovel 100 has motor 190, driven by motor 190, the oil hydraulic circuit 105 of supplying with the working oil (hydraulic oil) of discharging from oil hydraulic pump 130 and the Preheating unit that motor 190 is heated.Although omitted the diagram about the formation of oil hydraulic circuit 105, but in oil hydraulic circuit 105, be provided with the hydraulic transmission such as oil hydraulic cylinder or oil hydraulic motor, drive hydraulic transmission by the hydraulic oil of discharging from oil hydraulic pump 130, thus, make anterior device 104 work such as grade shown in Fig. 1.
Oil hydraulic pump 130 directly links with motor 190, if engine speed rises, and the rise of rotational speed of oil hydraulic pump 130, pump delivery increases.Oil hydraulic pump 130 is variable displacement pumps, and pump capacity changes by regulator 130a.On regulator 130a, be provided with not shown solenoid-operated proportional reduction valve, solenoid-operated proportional reduction valve is worked according to the control signal of carrying out self-controller 120, and pump tilt angle changes according to the pilot pressure of solenoid-operated proportional reduction valve.The pilot pressure of the solenoid-operated proportional reduction valve of regulator 130a is controlled by controller 120, thus, controls the tilt angle (discharge capacity) of oil hydraulic pump 130.
In the hydraulic shovel 100 of present embodiment, be provided with cooling water heater 160, this cooling water heater 160 is for heating the engine cooling water in the heating core of the heating unit 140 being supplied in operator cabin 107.If not shown heater button is opened, cooling water heater 160 is worked, heated engine cooling water, and improve the heating performance in operator cabin 107.
Preheating unit have the preheating of carrying out motor 190 electro-heat equipment 150, detect working oil temperature sensor 163 and the controller 120 of the temperature of the working oil of being discharged by oil hydraulic pump 130.As electro-heat equipment 150, can adopt the glow plug that firing chamber (in cylinder) heated and the air intake heater that air amount is heated etc.Below, to adopt glow plug 150 to describe as the situation of electro-heat equipment 150 as example.
On controller 120, be connected with working oil temperature sensor 163, glow plug 150, not shown engine controlling unit, aura tutorial light (glow indicator lamp) 139 and ignition switch 134.The detection unit of working oil temperature sensor 163 is configured in the fuel tank 199 of working oil, carrys out the temperature T o of testing oil.
Engine controlling unit (not shown) compares the actual speed by the detected motor 190 of engine rotation speed sensor (not shown) and the rotating speed of target (indicated value) that carrys out the motor of self-controller 120, controls fuel injection system so that the actual speed of motor 190 approaches to rotating speed of target (not shown).The rotating speed of target of motor 190 is set by engine control dial (not shown).
Pre-stored table working oil temperature-preheat time in storage device of oil temperature benchmark determination section 121 references, and according to deciding to preheat time by the temperature T o of working oil temperature sensor 163 detected working oils.Job control portion 124 only switches on glow plug 150 with to preheat time being determined and makes its heating, thus, makes the temperature rise in firing chamber.
Fig. 3 is the figure that represents table working oil temperature-preheat time.Working oil temperature-preheat time, table was stored in the storage device of controller 120 with the form of look-up table (look up table).Working oil temperature-preheat time, table stipulated, make in the To < To1 as very low temperature region territory, preheat time, to was maximum duration tmax1, and in the To2≤To as normal temperature region, preheat time, to was 0.Working oil temperature-preheat time table also stipulates, makes in the To1≤To < To2 as low-temperature region, and to was ratio along with the rising of working oil temperature To from maximum duration tmax1 and reduced to 0 preheat time.In addition, working oil temperature-preheat time table is to have considered the specification etc. of glow plug 150 and motor 190 and set, and for example, To1 is set as-20 ℃, and To2 is set as 0 ℃, and tamx1 was set as about 10～20 seconds.
Fig. 4 is the flow chart of an example of the processing that represents that the warm-up control program by being carried out by controller 120 carries out.Processing shown in this flow chart starts by the ON of ignition switch 134.
As shown in Figure 4, in step S111, obtain the temperature information by working oil temperature sensor 163 detected working oils, and advance to step S121.In step S121, controller 120 decides the preheat time to corresponding with working oil temperature To, and advances to step S123 with reference to working oil temperature-table preheat time (with reference to Fig. 3).In step S123, controller 120 using preheat time to as the threshold value t1 of the time that glow plug 150 is switched on and set (t1=to), and advance to step S149.
In step S149, whether 120 judgment threshold t1 are larger than 0 for controller.In step S149, advance to step S151 if be judged as sure words, advance to step S171 if be judged as negative words.
In step S151, controller 120 starts to the energising of glow plug 150, and lights aura tutorial light 139.In addition, controller 120 passes through the instrumentation of built-in timer (not shown) elapsed time in step S151, and advances to step S161.
In step S161, controller 120 judges whether the instrumentation time t being undertaken by timer is more than threshold value t1.The instrumentation being undertaken by timer is performed, until instrumentation time t has passed through the threshold value t1 setting in step S123.The processing of controller 120 repeated execution of steps S161, until it is judged as certainly, advances to step S166 when sure when being judged as.
In step S166, controller 120 finishes the energising of glow plug 150, and, extinguish aura tutorial light 139.In addition, controller 120 resets the time being measured by timer and advances to step S171 in step S166.
In step S171, controller 120 judges whether ignition switch 134 is operated on START position.The processing of controller 120 repeated execution of steps S171, until it is judged as certainly, advances to step S191 when sure when being judged as.
In step S191, controller 120, to engine controlling unit (not shown) and starter motor (not shown) output engine activating signal, starts motor 190.If stop the operation of ignition switch 134, ignition switch 134 maintains on ON position.In addition,, when engine start, the tilt angle of oil hydraulic pump 130 is conditioned device 130a and is controlled at minimum and verts.
When exported engine start signal in step S191 time, advance to step S193, controller 120 judges whether ignition switch 134 is operated on OFF position.The processing of controller 120 repeated execution of steps S193, until it is judged as certainly, advances to step S195 when sure when being judged as.
In step S195, controller 120 is to engine controlling unit (not shown) output engine stop signal.If inputted engine halt signal, engine controlling unit (not shown) is controlled fuel injection system (not shown) and motor 190 is stopped.When exported engine halt signal in step S195 time, this EOP end of program.
In addition, though not shown, even in Preheating unit working procedure, also can carry out the detection of the operating position of ignition switch 134, for example, if detect in Preheating unit working procedure, ignition switch 134 has been operated into the locational words of START, interrupts the pre-heat treatment and advances to step S191.
The action of the first mode of execution is summarized as follows.In severe cold area, operator's operate heater switch (not shown), works cooling water heater 160.By cooling water heater 160 being worked make engine cooling water heated, and cooling water after heating is supplied to the heating core of the heating unit 140 in operator cabin.Work after scheduled time when making cooling water heater 160, when operator operates on ON position by ignition switch 134, decide appropriate preheat time (step S121) according to working oil temperature, only heating (step S151～166) during this preheat time of glow plug 150.By the heating of glow plug 150, and make the temperature rise in firing chamber (cylinder), thus, promoted the burning of the mixed gas in firing chamber, improved the startability of motor.
According to the first mode of execution described above, can bring into play following effects effect.
(1) control the work of glow plug 150 according to glow plug 150, working oil temperature sensor 163 and the temperature T o by working oil temperature sensor 163 detected working oils, wherein, this glow plug 150 carries out the preheating of the motor 190 directly linking with oil hydraulic pump 130, and this working oil temperature sensor 163 detects the temperature T o of the working oil of being discharged by oil hydraulic pump 130.Thus, in the hydraulic shovel 100 that cooling water heater 160 is installed, in the warmed-up situation of water heater 160, also can in the time that working oil temperature To is lower, electro-heat equipment 150 be worked even if cooling water is cooled in advance, and improve the startability of motor 190.
(2) working oil temperature To is lower, and work oil viscosity becomes higher, and thus, the friction of oil hydraulic pump 130 becomes larger.In the present embodiment, by working oil temperature sensor 163, detected working oil temperature To is lower, and by the operating time of electro-heat equipment 150 be preheat time to set longlyer.Thus, even in the situation that working oil temperature To is very low, also can positively improve the startability of motor 190, and, when working oil temperature To height is to a certain degree time, can make preheating finish in advance, therefore, can make Preheating unit work expeditiously.
(3), at electro-heat equipment 150 duration of works, aura tutorial light 139 is lighted, report electro-heat equipment 150 this situation in work.Operator sees that aura tutorial light 139 lights, and can confirm to be in advance and to hanker at present, sees that aura tutorial light 139 extinguishes, and can confirm that preheating finishes.Thus, operator can make swimmingly motor 190 start after preheating completes.
The-the second mode of execution-
With reference to Fig. 5～Fig. 7, the Preheating unit of the second mode of execution is described.In figure, in the part identical or suitable with the first mode of execution, mark identical reference character, and difference is mainly described.Fig. 5 is the figure that represents the formation of the Preheating unit of the second mode of execution of the present invention.
In the first embodiment, make glow plug 150 only carry out work with to preheat time determining according to working oil temperature To.With respect to this, in the second mode of execution, make the only to and work preheat time that preheat time, the time was grown in tc that determined according to cooling water temperature Tc preheat time to be determined according to working oil temperature To of glow plug 150.
The Preheating unit of the second mode of execution has the formation roughly the same with the Preheating unit of the first mode of execution, and also has the cooling-water temperature sensor 264 that the temperature of the engine cooling water (refrigeration agent) to cooled engine 190 detects.Cooling-water temperature sensor 264 is arranged in the cooling circuit of connecting engine 190 and heating unit 140, exports the temperature information of cooling water to controller 220.
Fig. 6 (a) is the figure that represents table working oil temperature-preheat time.Fig. 6 (a) is equivalent to table working oil temperature-preheat time of illustrated in the first embodiment Fig. 3.With the first mode of execution in the same manner, oil temperature benchmark determination section 121 is with reference to pre-stored table working oil temperature-preheat time in storage device, and according to deciding to preheat time by the temperature T o of working oil temperature sensor 163 detected working oils.
Fig. 6 (b) is the figure that represents table cooling water temperature-preheat time.Cooling water temperature-preheat time, table was stored in the storage device of controller 220 with the form of look-up table.Water temperature benchmark determination section 222 is with reference to cooling water temperature-preheat time table, and according to deciding tc preheat time by the temperature T c of cooling-water temperature sensor 264 detected cooling waters.
As shown in Figure 6 (b), cooling water temperature-preheat time, table stipulated, make in the Tc < Tc1 as very low temperature region territory, preheat time, tc was maximum duration tmax2, in the Tc2≤Tc as normal temperature region, preheat time, tc was 0.Cooling water temperature-preheat time table also stipulates, makes in Tc1≤Tc < Tc2, and tc was ratio along with the rising of cooling water temperature Tc from maximum duration tmax2 and reduced to 0 preheat time.Tc considered the specification etc. of glow plug 150 and motor 190 and set preheat time.In addition, the temperature of Fig. 6 (a) and Fig. 6 (b)-preheat time, table can differently be set separately, also can be set as identical.
Fig. 7 is the flow chart of an example of the processing that represents that the warm-up control program by being carried out by controller 220 carries out, replace the step S111 in the flow chart of Fig. 4 and perform step the processing of S211, and replace step S123 and perform step S226,231,241,246 processing.Processing shown in this flow chart starts by the ON of ignition switch 134.
As shown in Figure 7, in step S211, obtain by the temperature information of working oil temperature sensor 163 detected working oils and by the temperature information of cooling-water temperature sensor 264 detected cooling waters, and advance to step S121.In step S121, controller 220 determines the preheat time to corresponding with working oil temperature To with reference to working oil temperature-table preheat time (with reference to Fig. 6 (a)), and advances to step S226.
In step S226, controller 220 determines the preheat time tc corresponding with cooling water temperature Tc with reference to cooling water temperature-table preheat time (with reference to Fig. 6 (b)), and advances to step S231.In step S231, controller 220 judges that whether to preheat time determining according to working oil temperature To is that preheat time of determining according to cooling water temperature Tc is more than tc.In step S231, advance to step S241 if be judged as sure words, advance to step S246 if be judged as negative words.
In step S241, controller 220 using preheat time to as the threshold value t1 of the time that glow plug 150 is switched on and set (t1=to), and advance to step S149.In step S246, controller 220 using preheat time tc as the threshold value t1 of the time that glow plug 150 is switched on and set (t1=tc), and advance to step S149.
The processing of step S149～step S195 is the processing identical with the first mode of execution, and controller 220 makes glow plug 150 heating powers, until the instrumentation time t carrying out based on timer process threshold value t1, and by firing chamber preheating.
According to this second mode of execution, bring into play the action effect identical with the first mode of execution.
Following distortion also within the scope of the invention, also can be by one or more variation and the combination of above-mentioned mode of execution.
[variation]
(1) the present invention is as long as controlling the device of work of heating mechanism according to working oil temperature, for example, as shown in Figure 8, also can be, working oil temperature To and cooling water temperature Tc are compared, select the lower side (step S313) of temperature, and with reference to working oil temperature-preheat time table (with reference to Fig. 6 (a)) or cooling water temperature-table preheat time (with reference to Fig. 6 (b)), and set (step S321,326,341,346) using preheat time as threshold value t1 according to selected temperature.In addition, it can be identical that working oil temperature-preheat time table and cooling water temperature-preheat time are shown, and can be also different.
(2) working oil temperature-preheat time, table was not limited to foregoing.For example, as shown in Figure 9, also can be, stipulate to make more than than the slightly low temperature T o3 of To2 and the temperature province of not enough To2 (To3≤To < To2) in, become t1(fixed value preheat time of regulation), and, stipulate to make in low-temperature region more than To1 and in the temperature province of not enough To3 (To1≤To < To3), make preheat time to be ratio along with the rising of working oil temperature To from maximum duration tmax and reduce to 0.In addition, as shown in Figure 9 (b), can also be, stipulate to make in the time that To2 is above, preheat time, to be 0, and in the time of not enough To2, preheat time, to was scheduled time t2(fixed value).Similarly, cooling water temperature-preheat time, table was also not limited to foregoing.
(3) heating mechanism is not limited to glow plug 150 or air intake heater, the various heating mechanism that can adopt the startability that makes motor 190 to improve.
(4) can be also, operator can pass through mode conversion switch (not shown), and to set the water temperature reference mode of corresponding with cooling-water temperature sensor 264 preheat time of tc and setting and working oil temperature sensor 163 corresponding preheat time to oil temperature reference mode switch.
(5) in the above-described embodiment, although the description of the example that the present invention is applicable to hydraulic shovel, but the present invention is not limited thereto, can also be applicable in the Preheating unit of various engineering machinery of the direct motor linking of the lift-launchs such as wheel excavator, wheel loader, hoist and oil hydraulic pump.
The present invention is not limited to above-mentioned mode of execution, can in the scope that does not depart from invention main idea, freely change, improve.
Claims (3)
1. a Preheating unit for engineering machinery, is characterized in that, has:
Carry out the heating mechanism of the preheating of the motor directly linking with oil hydraulic pump;
Detect the working oil temperature feeler mechanism of the temperature of the working oil of being discharged by described oil hydraulic pump; With
According to the temperature by the detected working oil of described working oil temperature feeler mechanism, control the control mechanism of the work of the described mechanism of generating heat.
2. the Preheating unit of engineering machinery according to claim 1, is characterized in that, described control mechanism is along with lower by the temperature of the detected working oil of described working oil temperature feeler mechanism, and the operating time of described heating mechanism is set longlyer.
3. the Preheating unit of engineering machinery according to claim 1 and 2, is characterized in that, also has the refrigerant temperature feeler mechanism that the temperature of the refrigeration agent to cooling described motor detects,
Described control mechanism has:
Decide the first determination means of the first preheat time according to the temperature of described working oil;
Decide the second determination means of the second preheat time according to the temperature of described refrigeration agent;
Select long side's of time in described the first preheat time and described the second preheat time selection mechanism;
The operation mechanism that the described mechanism of generating heat is only worked with the preheat time of being selected by described selection mechanism; With
At described heating mechanism duration of work, report that described heating mechanism is in the report mechanism in work.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012248518A JP5993284B2 (en) | 2012-11-12 | 2012-11-12 | Preheating equipment for construction machinery |
| JP2012-248518 | 2012-11-12 |
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| Publication Number | Publication Date |
|---|---|
| CN103807082A true CN103807082A (en) | 2014-05-21 |
| CN103807082B CN103807082B (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310502790.9A Active CN103807082B (en) | 2012-11-12 | 2013-10-23 | The preheating device of engineering machinery |
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| JP (1) | JP5993284B2 (en) |
| CN (1) | CN103807082B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747935A (en) * | 2019-10-25 | 2020-02-04 | 雷沃工程机械集团有限公司 | Automatic preheating system and method for excavator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102015208037A1 (en) | 2014-05-02 | 2015-11-05 | Toshiba Kikai Kabushiki Kaisha | Shaping device, molding method and molded products |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332319A (en) * | 2000-07-10 | 2002-01-23 | 丰田自动车株式会社 | Internal combustion engine with heat accumulator |
| CN2561948Y (en) * | 2002-09-02 | 2003-07-23 | 徐州装载机厂 | Fuel heating cold starter |
| CN2625596Y (en) * | 2003-06-20 | 2004-07-14 | 三一重工股份有限公司 | Diesel cold starting preheating device for engineering machinery |
| JP2009030494A (en) * | 2007-07-25 | 2009-02-12 | Toyota Motor Corp | Control device for diesel engine |
| JP4469761B2 (en) * | 2005-07-14 | 2010-05-26 | ヤンマー株式会社 | Engine starting method and engine starting device |
| CN101943073A (en) * | 2009-07-02 | 2011-01-12 | 日立建机株式会社 | Engineering machinery |
| CN102619586A (en) * | 2012-04-13 | 2012-08-01 | 东北林业大学 | Electromagnetic automobile engine oil preheating device |
| CN102705307A (en) * | 2012-06-12 | 2012-10-03 | 三一重机有限公司 | Engineering vehicle, hydraulic oil preheating device and method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6023513Y2 (en) * | 1977-03-25 | 1985-07-12 | トヨタ自動車株式会社 | Diesel engine preheating device |
| JP3190998B2 (en) * | 1995-01-26 | 2001-07-23 | 株式会社クボタ | Hydraulic transmission device |
| JPH08284907A (en) * | 1995-04-18 | 1996-11-01 | Hitachi Constr Mach Co Ltd | Hydraulic oil warming-up device for construction machine |
| JPH10331205A (en) * | 1997-05-29 | 1998-12-15 | Yutani Heavy Ind Ltd | Battery-driven hydraulic backhoe |
| JP2006299825A (en) * | 2005-04-15 | 2006-11-02 | Hitachi Constr Mach Co Ltd | Warming-up operation system of construction machine |
| JP4600389B2 (en) * | 2006-12-01 | 2010-12-15 | 株式会社デンソー | Temperature control device for heating means |
| JP5462731B2 (en) * | 2010-06-28 | 2014-04-02 | キャタピラー エス エー アール エル | Hydraulic oil preheating mechanism and preheating method for construction machinery |
-
2012
- 2012-11-12 JP JP2012248518A patent/JP5993284B2/en active Active
-
2013
- 2013-10-23 CN CN201310502790.9A patent/CN103807082B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332319A (en) * | 2000-07-10 | 2002-01-23 | 丰田自动车株式会社 | Internal combustion engine with heat accumulator |
| CN2561948Y (en) * | 2002-09-02 | 2003-07-23 | 徐州装载机厂 | Fuel heating cold starter |
| CN2625596Y (en) * | 2003-06-20 | 2004-07-14 | 三一重工股份有限公司 | Diesel cold starting preheating device for engineering machinery |
| JP4469761B2 (en) * | 2005-07-14 | 2010-05-26 | ヤンマー株式会社 | Engine starting method and engine starting device |
| JP2009030494A (en) * | 2007-07-25 | 2009-02-12 | Toyota Motor Corp | Control device for diesel engine |
| CN101943073A (en) * | 2009-07-02 | 2011-01-12 | 日立建机株式会社 | Engineering machinery |
| CN102619586A (en) * | 2012-04-13 | 2012-08-01 | 东北林业大学 | Electromagnetic automobile engine oil preheating device |
| CN102705307A (en) * | 2012-06-12 | 2012-10-03 | 三一重机有限公司 | Engineering vehicle, hydraulic oil preheating device and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747935A (en) * | 2019-10-25 | 2020-02-04 | 雷沃工程机械集团有限公司 | Automatic preheating system and method for excavator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014095365A (en) | 2014-05-22 |
| JP5993284B2 (en) | 2016-09-14 |
| CN103807082B (en) | 2017-07-21 |
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