KR101972685B1 - pH REGULATION DEVICE FOR CYLINDER LINER SLIDING SURFACE OF INTERNAL COMBUSTION ENGINE, CYLINDER OILING DEVICE FOR INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE - Google Patents
pH REGULATION DEVICE FOR CYLINDER LINER SLIDING SURFACE OF INTERNAL COMBUSTION ENGINE, CYLINDER OILING DEVICE FOR INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE Download PDFInfo
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- KR101972685B1 KR101972685B1 KR1020177023500A KR20177023500A KR101972685B1 KR 101972685 B1 KR101972685 B1 KR 101972685B1 KR 1020177023500 A KR1020177023500 A KR 1020177023500A KR 20177023500 A KR20177023500 A KR 20177023500A KR 101972685 B1 KR101972685 B1 KR 101972685B1
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- adjusting agent
- adjusting
- supply amount
- sliding surface
- lubricating oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/02—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00 having means for introducing additives to lubricant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
A pH adjusting device for a cylinder liner sliding surface, a cylinder lube oiling device for an internal combustion engine, and an internal combustion engine, which can maintain the pH value of a cylinder sliding surface in an appropriate range regardless of whether sulfur contained in fuel is large or small. (11) for adjusting the supply amount of the pH adjusting agent, a pH adjusting means (14) for adjusting the supply amount of the pH adjusting agent, a pH adjusting means And a control means (20) for controlling the supply amount of the pH adjusting agent (14) so that the pH value of the sliding surface is in an appropriate range, based on the detection result of the pH detecting means (14) The adjusting agent supply amount setting section 23 for setting the adjusting agent supply amount adjusting section 23 and the adjusting agent supply amount adjusting section 23 for controlling the operation of the adjusting agent supply amount adjusting section 11 so as to supply the above- And an adjustment means control section (24).
Description
The present invention relates to a pH adjusting device for a cylinder liner sliding surface of an internal combustion engine, a cylinder lubrication apparatus for an internal combustion engine, and an internal combustion engine.
In the marine engine, cylinder lubricating oil (hereinafter referred to as cylinder oil) is supplied to the sliding surface of the cylinder liner to which the piston ring makes sliding contact, and this sliding surface is lubricated.
In marine engines, heavy oil is usually used as the fuel oil. Since the heavy oil contains an acidic substance such as sulfur, the sliding surface of the cylinder liner may be acid-etched. In order to prevent the occurrence of the acid corrosion, in a marine engine, a cylinder oil having a basic component is used to neutralize the acidic substance.
However, it is difficult to select the cylinder oil according to the fuel in the marine engine in which the heavy oil and the fuel having a smaller amount of sulfur (acidic substance) than the heavy oil (hereinafter referred to as the low S fuel) are used. That is, when a high cylinder oil is used as the total basicization (hereinafter referred to as TBN) in accordance with the heavy oil, Ca powder is precipitated with the TBN excess in the use of the low S fuel, On the other hand, if a cylinder oil having a low TBN is used in accordance with the low-S fuel, the cylinder oil will not be able to multiply the acidic substance when the heavy oil is used, and the acid corrosion of the cylinder liner proceeds.
In Patent Document 2, by adjusting the amount of the lubricant to be supplied to the cylinder liner based on the BN value (residual BN value) of the used lubricant that is correlated with the sulfur content of the fuel or the sulfur content of the fuel, There is disclosed an internal combustion engine for preventing corrosion and further preventing corrosion.
In the apparatus described in
It is also conceivable to widen the range of fuel that can be accommodated by changing the TBN slightly to increase the type of cylinder oil. However, increasing the kinds of cylinder oil with different TBNs results in an increase in the number of tanks, resulting in an increase in cost and a complicated structure for switching the tanks. In addition, since it is not possible to continuously change the TBN even if the cylinder oil types differing in TBN are varied, it is practically difficult to prepare the cylinder oil of the optimum TBN irrespective of the type of the fuel.
In the internal combustion engine described in Patent Document 2, corrosion of the cylinder liner is prevented by adjusting the supply amount of the lubricant to the cylinder, but the range of adjustment of the supply amount of the lubricant is limited. In short, if the amount of lubricating oil is too small, the lubricating property of the sliding surface of the cylinder liner can not be ensured. If the lubricating amount is too large, a large amount of lubricating oil is pumped into the combustion chamber, which adversely affects the performance of the internal combustion engine. For this reason, this internal combustion engine can not cope with the fuel having the sulfur content exceeding the adjustable range of the lubricating amount.
The present invention relates to a pH adjusting device for a cylinder liner sliding surface of an internal combustion engine capable of maintaining a pH value of a cylinder sliding surface in an appropriate range regardless of whether sulfur contained in fuel is large or small, And an internal combustion engine.
(1) In order to achieve the above object, the pH adjusting device for the cylinder liner sliding surface of the internal combustion engine of the present invention comprises: pH detecting means for detecting the pH value of the sliding surface of the cylinder liner of the internal combustion engine; An adjusting agent supply path for connecting the adjusting agent feeding means and the sliding surface; an adjusting agent supply amount adjusting means for adjusting a supplying amount of the pH adjusting agent to the sliding surface; and control means for controlling, An adjusting agent supply amount setting unit that sets a supply amount of the pH adjusting agent so that the pH value of the sliding surface falls within an appropriate range based on the detection result of the pH detecting unit; A regulating agent for controlling the operation of the adjusting agent supply amount adjusting means so as to supply the adjusting agent to the sliding surface, And an adjustment means control section.
(2) In order to achieve the above object, a cylinder lube oil feeding apparatus of an internal combustion engine according to the present invention is a cylinder lube oil feeding apparatus for an internal combustion engine that supplies lubricating oil to a sliding surface of a cylinder liner of an internal combustion engine, A pH detecting means for detecting a pH value of the sliding surface, an adjusting agent feeding and feeding means for feeding and feeding a pH adjusting agent, and a controller for controlling the adjusting agent feeding means and the lubricant feeding means And a control means for controlling the supply amount of the pH adjusting agent to the lubricating oil supply path and controlling means for controlling the supply amount of the pH adjusting agent to the lubricating oil supply path based on the detection result of the pH detecting means, Adjusting agent supply amount setting for setting the supply amount of the pH adjuster so that the pH value of the sliding surface falls within an appropriate range And to supply to the sliding surfaces of the pH adjusting agent in the supply amount set by the supply amount setting section adjusting agent, and is characterized in further comprising an adjustor means for adjusting a control unit for controlling the operation of the adjusting agent supply amount adjusting means.
(3) lubricating oil supply amount adjusting means for adjusting the supply amount of the lubricating oil to the sliding surface, and oil film thickness detecting means for detecting the oil film thickness of the lubricating oil formed on the sliding surface, A lubricating oil supply amount setting section for setting the supply amount of the lubricating oil so that the film thickness falls within an appropriate range on the basis of the detection result of the detecting means; and a lubricating oil supply amount setting section for supplying the lubricating oil of the supply amount set by the lubricating oil supply amount setting section It is preferable to have a lubricating oil adjusting means control section for controlling the lubricating oil supplying amount adjusting means.
(4) a lubricating oil flow rate detecting means formed in the lubricating oil supply path, wherein the adjusting agent supply amount setting section sets the supply amount of the pH adjusting agent based on the detection result of the pH detecting means and the detection result of the lubricant flow rate detecting means .
(5) In order to achieve the above object, the internal combustion engine of the present invention is characterized in that it comprises a pH adjustment device for a cylinder liner sliding surface of an internal combustion engine of (1), or a cylinder of an internal combustion engine described in any one of (2) And a gas supply device.
According to the present invention, the supply amount of the pH adjuster is adjusted so that the pH value of the sliding surface of the cylinder liner detected by the pH detecting means falls within an appropriate range. Therefore, regardless of whether the sulfur contained in the fuel is large or small, The pH value of the surface can be maintained in an appropriate range.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a configuration of a cylinder lube oiling apparatus and a configuration of a main portion of an internal combustion engine according to an embodiment of the present invention. FIG.
2 is a block diagram showing a configuration of a control apparatus for a cylinder lube oiling apparatus according to an embodiment of the present invention.
Fig. 3 is a flowchart exemplifying the control procedure of the cylinder oil supply amount control by the control apparatus of Fig. 2; Fig.
4 is a flowchart exemplifying the control procedure of the supply amount control of the TBN adjusting agent by the control apparatus of Fig.
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a configuration of a cylinder lube oiling apparatus and a configuration of a main portion of an internal combustion engine according to an embodiment of the present invention. FIG.
2 is a block diagram showing a configuration of a control apparatus for a cylinder lube oiling apparatus according to an embodiment of the present invention.
Fig. 3 is a flowchart exemplifying the control procedure of the cylinder oil supply amount control by the control apparatus of Fig. 2; Fig.
4 is a flowchart exemplifying the control procedure of the supply amount control of the TBN adjusting agent by the control apparatus of Fig.
It should be noted that the following embodiments are merely examples, and it is not intended to exclude the application of various modifications and techniques not described in the following embodiments. The constitutions of the embodiments described below can be modified variously within a range not deviating from the purpose thereof, and can be selected as required or can be appropriately combined.
[One. Configuration]
The main part of a marine diesel engine (hereinafter referred to as an internal combustion engine) and the configuration of a cylinder lube oil provided in an internal combustion engine according to an embodiment of the present invention will be described with reference to Fig.
1, the internal combustion engine includes a
The internal combustion engine is provided with a cylinder lube oil feeding device 50 (a pH adjusting device for the cylinder liner sliding surface of the internal combustion engine) for supplying (lubricating) lubricating oil (hereinafter also referred to as cylinder oil) to the
The cylinder lube
The solenoid valve 6 for adjusting the amount of fuel supply is normally elastically supported by an elastic support means such as a spring and is in a closed valve state. When receiving a signal from a control means 20 described later, an internal solenoid is excited to open the valve. The fuel amount adjusting solenoid valve 6 adjusts the flow rate of the cylinder oil in accordance with the control command of the control means 20. [
The cylinder
The TBN adjusting agent is supplied from the TBN
In this embodiment, the TBN adjusting agent solenoid valve 11 is disposed on the downstream side of the TBN
The TBN adjusting agent solenoid valve 11 is configured in the same manner as the main flow amount adjusting solenoid valve 6, and thus description thereof is omitted.
The cylinder
The
[2. Control Configuration]
The configuration of the control means 20 will be described with reference to Fig.
2, the control means 20 includes a cylinder oil supply amount setting portion (lubricating oil supply amount setting portion) 21, a cylinder electronic valve control portion (lubricating oil adjustment means control portion) 22, a TBN supply amount setting portion (Adjusting agent supply amount setting section) 23, and a TBN solenoid valve control section (adjusting agent adjusting means control section)
The cylinder oil supply amount setting section 21 acquires the oil film thickness t of the lubricating oil on the
That is, when the oil film thickness t is larger than the reference value t0, the cylinder oil supply amount setting portion 21 has a large amount of lubricating oil pumped into the
The cylinder hydraulic valve control unit 22 controls the cylinder oil flow rate detected by the cylinder oil flow rate sensor 5 so that the actual cylinder oil flow rate becomes the set flow rate FLset set by the cylinder oil supply amount setting unit 21. [ FL), while controlling the operation of the solenoid valve 6 for adjusting the amount of fuel supply.
The TBN supply amount setting unit 23 acquires the pH value Pc of the
This is due to the following reasons. In other words, since acid corrosion may occur in the cylinder
The TBN supply amount setting unit 23 sets the TBN supply amount so that the effect of the TBN adjusting agent can be appropriately obtained (that is, the ratio of the TBN adjusting agent to the cylinder oil flow rate FL is in the appropriate range) regardless of the cylinder oil flow rate FL. Set the set flow rate (FTset) according to the flow rate (FL). That is, the set flow rate FTset is set higher as the cylinder oil flow rate FL is higher and the set flow rate FTset is set lower as the cylinder oil flow rate FL is smaller.
The TBN supply amount setting unit 23 sets the cylinder oil setting flow rate FLset obtained from the cylinder oil supply amount setting unit 21 instead of the cylinder oil flow amount (detected value) FL acquired from the cylinder oil flow amount sensor 5 ) Or the set flow rate FTset of the TBN adjuster based on the oil film thickness t acquired from the oil
The TBN solenoid valve control section 24 performs the open loop control of the operation of the TBN adjusting agent solenoid valve 11 such that the set flow rate FTset is set by the TBN supply amount setting section 23. [
[3. Flow chart]
The cylinder oil supply amount control and the supply amount control of the TBN adjuster according to one embodiment of the present invention will be described with reference to Figs. 3 and 4. Fig. The control of the supply amount of the cylinder oil and the control of the supply amount of the TBN regulating agent are repeated independently at preset predetermined cycles.
First, the supply amount control of the cylinder oil will be described.
3, the oil film thickness t is acquired from the oil
If the film thickness t is equal to or smaller than the reference value t0 in step S2, the process proceeds to step S5 and the correction amount? FL is calculated based on the difference between the film thickness t and the reference value t0, , The value obtained by adding the correction amount FL to the set flow rate FLset of the first set flow rate FLset becomes the new set flow rate FLset, and the flow proceeds to step S5.
In step S5, the operation of the fuel injection amount adjusting solenoid valve 6 is controlled so as to become the set amount FLset.
Next, the supply amount control of the TBN regulating agent will be described. The pH value Pc of the
In step S13, the obtained pH value Pc is compared with the reference value P0. When the pH value Pc is larger than the reference value P0, the process proceeds to step S14.
In step S14, for example, the correction amount? FT is calculated based on the difference between the pH value Pc and the reference value P0 and the obtained cylinder oil flow rate FL, and the set flow rate FTset of the current TBN adjusting agent is calculated, , The value obtained by subtracting this correction amount DELTA FT becomes the new set flow rate FTset, and the process proceeds to step S15.
When the pH value Pc is equal to or less than the reference value P0 as a result of the comparison at the step S13, the process proceeds to the step S16. In step S16, for example, the correction amount? FT is calculated based on the difference between the pH value Pc and the reference value P0 and the cylinder oil flow rate FL, and the correction amount? FT is set to the set flow rate FTset The value obtained by adding the correction amount DELTA FT becomes the new set flow rate FTset, and the process proceeds to step S15.
In step S15, the operation of the TBN adjusting agent solenoid valve 11 is controlled so as to become the set amount FTset.
According to the cylinder lubrication apparatus and the internal combustion engine provided with the cylinder lubrication apparatus of the embodiment of the present invention, by comparing the pH value of the cylinder sliding surface detected by the
The supply amount of the cylinder oil supplied to the
Since the supply amount of the TBN adjusting agent is determined in accordance with the cylinder oil flow amount FL detected by the cylinder oil flow amount sensor 5, the ratio of the supply amount of the TBN regulating agent to the cylinder oil flow amount FL can be set in an appropriate range have.
[4. Other]
(1) In the above embodiment, the supply amount of the cylinder oil is increased or decreased by comparing the oil film thickness t detected by the oil
(2) In the above embodiment, the supply amount of the TBN adjusting agent is increased or decreased based on a comparison between the pH value Pc of the
(3) In the above embodiment, the lubricating oil supply amount adjusting means is constituted by the solenoid valve 6 for adjusting the amount of fuel supply and the solenoid valve 11 for TBN adjusting agent is constituted by the adjusting agent supply amount adjusting means. The pump for the
(4) In the above embodiment, the TBN solenoid valve control section 24 performs the open loop control of the operation of the TBN adjusting agent solenoid valve 11 so as to be the set flow rate FTset set by the TBN supply amount setting section 23, The TBN adjusting agent solenoid valve 11 may be feedback controlled such that the set flow rate FTset is obtained. 1, a TBN regulating agent
delete
1: Cylinder liner
1a: sliding surface (cylinder sliding surface)
2: Piston
2a: Piston ring
4: main pump (lubricant feeding means)
5: Cylinder oil flow sensor (lubricating oil flow sensor)
6: Solenoid valve for adjusting fuel supply amount (lubricating oil supply amount adjusting means)
8: Main oil pipe (lubricating oil supply path)
10: Pump for TBN regulating agent (regulating agent feeding means)
11: Solenoid valve for TBN regulator (adjusting agent supply amount adjusting means)
12: TBN supply line (regulator euro)
13: Film thickness meter (film thickness detecting means)
14: pH meter (pH detecting means)
16: Fuel injection valve
20: control means
21: Cylinder oil supply amount setting part (lubricating oil supply amount setting part)
22: Cylinder oil valve control part (lubricating oil adjusting means control part)
23: TBN supply amount setting unit (adjusting agent supply amount setting unit)
24: TBN solenoid valve control part (adjusting agent adjusting means control part)
25: TBN regulator flow sensor
50: Cylinder lubrication device (pH adjusting device on sliding surface of cylinder liner of internal combustion engine)
FL: Cylinder flow rate
FLset: Cylinder oil setting flow rate
ΔFL: Amount of correction of FLset
FT: TBN regulator flow rate
FTset: Set flow rate of TBN regulator
ΔFT: Amount of correction of FTset
Pc: the pH value of the
P0: reference value of the pH value of the
t: Film thickness
t0: reference value of oil film thickness (t)
Claims (7)
an adjusting agent feeding means for feeding the pH adjusting agent,
Adjusting agent supply amount adjusting means for adjusting the supply amount of the pH adjusting agent to the sliding surface;
A lubricant supply passage connecting the lubricant supplying and supplying means for supplying lubricant with the sliding surface,
An adjusting agent flow path connecting the adjusting agent feeding means and the lubricating oil supplying path,
An adjusting agent flow amount detecting means formed on the adjusting agent flow path,
Lubricating oil flow amount detecting means formed in the lubricating oil supplying path,
Control means,
Wherein,
An adjusting agent supply amount setting unit that sets a supply amount of the pH adjusting agent so that the pH value of the sliding surface falls within an appropriate range based on the detection result of the pH detecting unit and the detection result of the lubricant flow amount detecting unit,
And an adjusting agent adjusting means control portion for controlling the operation of the adjusting agent supplying amount adjusting means so that the detection result of the adjusting agent flow amount detecting means is fed back so as to supply the pH adjusting agent of the supply amount set by the adjusting agent supplying amount setting portion to the sliding surface And the pH of the cylinder liner sliding surface of the internal combustion engine.
A lubricating oil feeding means for feeding the lubricating oil,
A lubricant supply passage connecting the lubricant supplying and supplying means and the sliding surface,
PH detecting means for detecting a pH value of the sliding surface;
an adjusting agent feeding means for feeding the pH adjusting agent,
An adjusting agent flow path connecting the adjusting agent feeding means and the lubricating oil supplying path,
An adjusting agent supply amount adjusting means for adjusting an amount of the pH adjusting agent supplied to the lubricating oil supply path,
Lubricating oil flow amount detecting means formed in the lubricating oil supplying path,
An adjusting agent flow amount detecting means formed on the adjusting agent flow path,
Control means,
Wherein,
An adjusting agent supply amount setting unit that sets a supply amount of the pH adjusting agent so that the pH value of the sliding surface falls within an appropriate range based on the detection result of the pH detecting unit and the detection result of the lubricant flow amount detecting unit,
And an adjusting agent adjusting means control portion for controlling the operation of the adjusting agent supplying amount adjusting means so that the detection result of the adjusting agent flow amount detecting means is fed back so as to supply the pH adjusting agent of the supply amount set by the adjusting agent supplying amount setting portion to the sliding surface And the cylinder lubrication system of the internal combustion engine.
Lubricating oil supply amount adjusting means for adjusting a supply amount of the lubricating oil to the sliding surface,
And oil film thickness detecting means for detecting the oil film thickness of the lubricating oil formed on the sliding surface,
Wherein,
A lubricant oil supply amount setting unit that sets a supply amount of the lubricant oil so that the oil film thickness falls within an appropriate range based on the detection result of the oil film thickness detection unit;
And a lubricating oil adjustment means control means for controlling the lubricating oil supply amount adjustment means so as to supply the lubricating oil of the supply amount set by the lubricating oil supply amount setting means to the sliding surface.
an adjusting agent feeding means for feeding the pH adjusting agent,
An adjusting agent supply path connecting the adjusting agent feeding means and the sliding surface,
Adjusting agent supply amount adjusting means for adjusting the supply amount of the pH adjusting agent to the sliding surface;
Film thickness detecting means for detecting a thickness of the oil film formed on the sliding surface,
Control means,
Wherein,
An adjusting agent supply amount setting unit that sets a supply amount of the pH adjusting agent so that the pH value of the sliding surface falls within an appropriate range based on the detection result of the pH detecting unit and the detection result of the oil film thickness detecting unit,
And an adjusting agent adjusting means control section for controlling the operation of the adjusting agent supply amount adjusting means so that the pH adjusting agent of the supply amount set by the adjusting agent supplying amount setting section can be supplied to the sliding surface. Surface pH adjustment device.
A lubricating oil feeding means for feeding the lubricating oil,
A lubricant supply passage connecting the lubricant supplying and supplying means and the sliding surface,
PH detecting means for detecting a pH value of the sliding surface;
an adjusting agent feeding means for feeding the pH adjusting agent,
An adjusting agent flow path connecting the adjusting agent feeding means and the lubricating oil supplying path,
An adjusting agent supply amount adjusting means for adjusting an amount of the pH adjusting agent supplied to the lubricating oil supply path,
Film thickness detecting means for detecting a film thickness of the lubricating oil formed on the sliding surface,
Control means,
Wherein,
An adjusting agent supply amount setting unit that sets a supply amount of the pH adjusting agent so that the pH value of the sliding surface falls within an appropriate range based on the detection result of the pH detecting unit and the detection result of the oil film thickness detecting unit,
And an adjusting agent adjusting unit control unit for controlling the operation of the adjusting agent supply amount adjusting unit so that the pH adjusting agent of the supply amount set by the adjusting agent supplying amount setting unit can be supplied to the sliding surface. .
And lubricating oil supply amount adjusting means for adjusting a supply amount of the lubricating oil to the sliding surface,
Wherein,
A lubricant oil supply amount setting unit that sets a supply amount of the lubricant oil so that the oil film thickness falls within an appropriate range based on the detection result of the oil film thickness detection unit;
And a lubricating oil adjustment means control means for controlling the lubricating oil supply amount adjustment means so as to supply the lubricating oil of the supply amount set by the lubricating oil supply amount setting means to the sliding surface.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JPJP-P-2015-050730 | 2015-03-13 | ||
JP2015050730A JP6347757B2 (en) | 2015-03-13 | 2015-03-13 | PHASE ADJUSTING DEVICE FOR Cylinder Liner Sliding Surface of Internal Combustion Engine, Cylinder Lubricating Device for Internal Combustion Engine, and Internal Combustion Engine |
PCT/JP2015/068355 WO2016147427A1 (en) | 2015-03-13 | 2015-06-25 | pH REGULATION DEVICE FOR CYLINDER LINER SLIDING SURFACE OF INTERNAL COMBUSTION ENGINE, CYLINDER OILING DEVICE FOR INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE |
Publications (2)
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KR20170105612A KR20170105612A (en) | 2017-09-19 |
KR101972685B1 true KR101972685B1 (en) | 2019-04-25 |
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KR1020177023500A KR101972685B1 (en) | 2015-03-13 | 2015-06-25 | pH REGULATION DEVICE FOR CYLINDER LINER SLIDING SURFACE OF INTERNAL COMBUSTION ENGINE, CYLINDER OILING DEVICE FOR INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE |
Country Status (4)
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JP (1) | JP6347757B2 (en) |
KR (1) | KR101972685B1 (en) |
CN (1) | CN107407168B (en) |
WO (1) | WO2016147427A1 (en) |
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CN110848550A (en) * | 2019-11-27 | 2020-02-28 | 三一重机有限公司 | Excavator lubricating state online monitoring device, self-lubricating system and method |
Citations (1)
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JP2006291758A (en) * | 2005-04-07 | 2006-10-26 | Toyota Motor Corp | Lubricating device and engine |
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JPH081138B2 (en) * | 1987-08-04 | 1996-01-10 | 住友重機械工業株式会社 | Lubricating oil adjusting and supplying device for internal combustion engine |
JPH03194109A (en) * | 1989-12-21 | 1991-08-23 | Mitsubishi Heavy Ind Ltd | Cylinder lubricating system |
JPH11294133A (en) * | 1998-04-13 | 1999-10-26 | Mitsubishi Heavy Ind Ltd | Cylinder lubricator of internal combustion engine |
DE10112691C5 (en) | 2001-03-16 | 2017-10-05 | Man Diesel & Turbo, Filial Af Man Diesel & Turbo Se, Tyskland | Method for operating a two-stroke large diesel engine and two-stroke large diesel engine |
CA2592882A1 (en) * | 2004-12-30 | 2006-07-06 | A.P. Moeller-Maersk A/S | Method and system for improving fuel economy and environmental impact operating a 2-stroke engine |
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2015
- 2015-03-13 JP JP2015050730A patent/JP6347757B2/en active Active
- 2015-06-25 CN CN201580077000.4A patent/CN107407168B/en active Active
- 2015-06-25 WO PCT/JP2015/068355 patent/WO2016147427A1/en active Application Filing
- 2015-06-25 KR KR1020177023500A patent/KR101972685B1/en active IP Right Grant
Patent Citations (1)
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JP2006291758A (en) * | 2005-04-07 | 2006-10-26 | Toyota Motor Corp | Lubricating device and engine |
Also Published As
Publication number | Publication date |
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JP6347757B2 (en) | 2018-06-27 |
WO2016147427A1 (en) | 2016-09-22 |
CN107407168A (en) | 2017-11-28 |
JP2016169687A (en) | 2016-09-23 |
KR20170105612A (en) | 2017-09-19 |
CN107407168B (en) | 2019-12-06 |
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