WO2016116251A1 - A supercharger for an engine - Google Patents

A supercharger for an engine Download PDF

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Publication number
WO2016116251A1
WO2016116251A1 PCT/EP2015/081297 EP2015081297W WO2016116251A1 WO 2016116251 A1 WO2016116251 A1 WO 2016116251A1 EP 2015081297 W EP2015081297 W EP 2015081297W WO 2016116251 A1 WO2016116251 A1 WO 2016116251A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotatable member
supercharger
cleaning material
engine
interlobe
Prior art date
Application number
PCT/EP2015/081297
Other languages
French (fr)
Inventor
Matthias Greiner
Original Assignee
Robert Bosch Gmbh
Bosch Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh, Bosch Limited filed Critical Robert Bosch Gmbh
Priority to RU2017129743A priority Critical patent/RU2699893C2/en
Priority to KR1020177020550A priority patent/KR20170102501A/en
Priority to DE112015004591.0T priority patent/DE112015004591T5/en
Priority to CN201580074261.0A priority patent/CN107208529B/en
Publication of WO2016116251A1 publication Critical patent/WO2016116251A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/32—Engines with pumps other than of reciprocating-piston type
    • F02B33/34—Engines with pumps other than of reciprocating-piston type with rotary pumps
    • F02B33/36—Engines with pumps other than of reciprocating-piston type with rotary pumps of positive-displacement type
    • F02B33/38—Engines with pumps other than of reciprocating-piston type with rotary pumps of positive-displacement type of Roots type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/03—EGR systems specially adapted for supercharged engines with a single mechanically or electrically driven intake charge compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/50—Arrangements or methods for preventing or reducing deposits, corrosion or wear caused by impurities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/082—Details specially related to intermeshing engagement type pumps
    • F04C18/084—Toothed wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/126—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/005—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of dissimilar working principle
    • F04C23/006—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of dissimilar working principle having complementary function
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/60—Condition

Definitions

  • This invention relates to the field of supercharger for an engine. Background of the invention
  • Superchargers are used to increase the power generated by an engine.
  • Superchargers use a compressor to increase the pressure or density of air supplied to an engine.
  • Superchargers are powered mechanically by belt or chain-drive from the engine's crankshaft. In order to increase the performance of the supercharger there is a need to allow the supercharger to have an additional source of input in addition to atmospheric air.
  • the other source of air, a supercharger may have access to is, the exhaust from the engine. But, the exhaust from the engine cannot be used directly as the impurities present in the exhaust may cause damage to the components to the supercharger. Hence, there is also a need for a purification mechanism before the air and/ or exhaust enters the supercharger.
  • Prior art patent application US8099957 supercharger compressor includes a plurality of rotors rotatably mounted in a housing, a first inlet for air, a second inlet for recirculated exhaust gas, and a flow separator.
  • the flow separator is arranged interior the housing and configured to form a slideable seal with at least one rotor of the plurality of rotors, the slide able seal fluidically isolating the first inlet from the second inlet, at least in part, and retarding pressure equalization there between.
  • FIG. 1 illustrates a supercharger for an engine
  • FIG. 2 illustrates a supercharger provided with a cleaning material. Detailed description of the embodiments
  • FIG. 1 illustrates a supercharger (200) for an engine (102).
  • the supercharger (200) disclosed herein derives power from the engine (102) crankshaft.
  • the supercharger (200) takes in air, and exhaust, which is re-circulated from the exhaust gas recirculation valve (EGR) (104) and compresses it to a pressure that is greater than atmospheric pressure.
  • EGR exhaust gas recirculation valve
  • the result is more air is forced into the engine (102).
  • the engine (102) now has the ability to draw in more fuel, corresponding to increase in the volume of air supplied and thereby increasing the charge supplied for combustion. This increases the power developed by the engine (102).
  • the exhaust gas that reaches the supercharger (200) is filled with dust and carbon deposits and this needs to be purified before it is sent back to the engine (102) along with the atmospheric air. This is achieved with the help of cleaning material (206) that will be described in the detailed description of Fig. 2.
  • FIG. 2 illustrates a supercharger (200) provided with a cleaning material (206).
  • the supercharger (200) may be a roots type supercharger (200).
  • the supercharger (200) is located along the inlet to an engine (102) and has a first rotatable member (202) and a second rotatable member (204).
  • the first rotatable member (202) and the second rotatable member (204) are mounted on a shaft that derives power from the crankshaft of the engine (102) with the help of a drive.
  • the first rotatable member (202) and the second rotatable member (204) rotate along respective axis of the shaft on which they are mounted.
  • the supercharger (200) is adapted to receive recirculated exhaust from an engine (102) along with fresh air and is provided with a cleaning material (206).
  • the cleaning material (206) is provided in a manner such that at least a part of the first rotatable member (202) and at least a part of the second rotatable member (204) in the supercharger (200) contacts the cleaning material (206).
  • the profile of the first rotatable member (202) and the second rotatable member (204) is such that the cleaning material (206) can be easily adapted onto the same. At least a part of the first rotatable member contacts the cleaning material (206) provided on the second rotatable member (204). At least a part of the second rotatable member (204) contacts the cleaning material (206) provided on the first rotatable member (202).
  • An interlobe trough is formed at the region where the blades of the rotatable member meet. As seen from FIG. 2 an interlobe trough is depression created in between the blades of the first rotatable member and the second rotatable member.
  • the first rotatable member (202) will be in contact with the cleaning material (206) provided on the interlobe trough (210) of the second rotatable member (204) and vice-versa.
  • the exhaust that is received via the EGR valve (104) is sucked into the supercharger (200) due to rotation of the first rotatable member (202) and the second rotatable member (204), due to this sucking action the exhaust gas particulates get deposited on the cleaning material (206).
  • Particulates present in the exhaust are removed by the cleaning material (206).
  • the pressurization of the exhaust and the atmospheric air happens within the space created between the lobes of the first rotatable member (202) and the second rotatable member (204) and the inner walls of the housing of the supercharger (200).
  • the cleaning material (206) may be made from rubber.
  • the cleaning material (206) is chosen in such a way so as to have good wear resistant properties and temperature resistance.
  • the cleaning material (206) is provided on the interlobe trough
  • the cleaning material (206) may be glued onto the interlobe trough (208) and (210) of the first rotatable member (202) and the second rotatable member (204).
  • the cleaning material (206) may be press fitted and/or snap fitted onto the interlobe trough (208) and (210) of the first rotatable member (202) and the second rotatable member (204).
  • the cleaning material (206) is fitted onto the interlobe trough (208) and (210) of the first rotatable member (202) and the second rotatable member (204) through a combination comprising, pins, screws, nut and bolt arrangement and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)
  • Processing Of Solid Wastes (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

Disclosed herein is a supercharger (200) for an engine (102). The supercharger (200) is located along the inlet to an engine (102) and has a first rotatable member (202) and a second rotatable member (204). The supercharger (200) is adapted to receive exhaust from an engine (102) along with atmospheric air and is provided with a cleaning material (206). The cleaning material (206) is provided in a manner such that the first rotatable member (202) and the second rotatable member (204) in the supercharger (200) contacts the cleaning material (206).

Description

Description
TITLE
A Supercharger for an Engine Field of the invention
This invention relates to the field of supercharger for an engine. Background of the invention
Superchargers are used to increase the power generated by an engine. Superchargers use a compressor to increase the pressure or density of air supplied to an engine.
Superchargers are powered mechanically by belt or chain-drive from the engine's crankshaft. In order to increase the performance of the supercharger there is a need to allow the supercharger to have an additional source of input in addition to atmospheric air. The other source of air, a supercharger may have access to is, the exhaust from the engine. But, the exhaust from the engine cannot be used directly as the impurities present in the exhaust may cause damage to the components to the supercharger. Hence, there is also a need for a purification mechanism before the air and/ or exhaust enters the supercharger.
Prior art patent application US8099957 supercharger compressor includes a plurality of rotors rotatably mounted in a housing, a first inlet for air, a second inlet for recirculated exhaust gas, and a flow separator. The flow separator is arranged interior the housing and configured to form a slideable seal with at least one rotor of the plurality of rotors, the slide able seal fluidically isolating the first inlet from the second inlet, at least in part, and retarding pressure equalization there between. Brief description of the accompanying drawing
Different modes of the invention are disclosed in detail in the description and illustrated in the accompanying drawing:
FIG. 1 illustrates a supercharger for an engine; and
FIG. 2 illustrates a supercharger provided with a cleaning material. Detailed description of the embodiments
FIG. 1 illustrates a supercharger (200) for an engine (102). The supercharger (200) disclosed herein derives power from the engine (102) crankshaft. During working, the supercharger (200) takes in air, and exhaust, which is re-circulated from the exhaust gas recirculation valve (EGR) (104) and compresses it to a pressure that is greater than atmospheric pressure. The result is more air is forced into the engine (102). The engine (102) now has the ability to draw in more fuel, corresponding to increase in the volume of air supplied and thereby increasing the charge supplied for combustion. This increases the power developed by the engine (102). The exhaust gas that reaches the supercharger (200) is filled with dust and carbon deposits and this needs to be purified before it is sent back to the engine (102) along with the atmospheric air. This is achieved with the help of cleaning material (206) that will be described in the detailed description of Fig. 2.
FIG. 2 illustrates a supercharger (200) provided with a cleaning material (206). The supercharger (200) may be a roots type supercharger (200). The supercharger (200) is located along the inlet to an engine (102) and has a first rotatable member (202) and a second rotatable member (204). The first rotatable member (202) and the second rotatable member (204) are mounted on a shaft that derives power from the crankshaft of the engine (102) with the help of a drive. The first rotatable member (202) and the second rotatable member (204) rotate along respective axis of the shaft on which they are mounted. The supercharger (200) is adapted to receive recirculated exhaust from an engine (102) along with fresh air and is provided with a cleaning material (206). The cleaning material (206) is provided in a manner such that at least a part of the first rotatable member (202) and at least a part of the second rotatable member (204) in the supercharger (200) contacts the cleaning material (206). The profile of the first rotatable member (202) and the second rotatable member (204) is such that the cleaning material (206) can be easily adapted onto the same. At least a part of the first rotatable member contacts the cleaning material (206) provided on the second rotatable member (204). At least a part of the second rotatable member (204) contacts the cleaning material (206) provided on the first rotatable member (202).
An interlobe trough is formed at the region where the blades of the rotatable member meet. As seen from FIG. 2 an interlobe trough is depression created in between the blades of the first rotatable member and the second rotatable member. The first rotatable member (202) will be in contact with the cleaning material (206) provided on the interlobe trough (210) of the second rotatable member (204) and vice-versa. The exhaust that is received via the EGR valve (104) is sucked into the supercharger (200) due to rotation of the first rotatable member (202) and the second rotatable member (204), due to this sucking action the exhaust gas particulates get deposited on the cleaning material (206). Particulates present in the exhaust are removed by the cleaning material (206). The pressurization of the exhaust and the atmospheric air happens within the space created between the lobes of the first rotatable member (202) and the second rotatable member (204) and the inner walls of the housing of the supercharger (200).
In an embodiment, the cleaning material (206) may be made from rubber. The cleaning material (206) is chosen in such a way so as to have good wear resistant properties and temperature resistance. The cleaning material (206) is provided on the interlobe trough
(208) and (210) of the first rotatable member (202) and the second rotatable member (204). The cleaning material (206) may be glued onto the interlobe trough (208) and (210) of the first rotatable member (202) and the second rotatable member (204). The cleaning material (206) may be press fitted and/or snap fitted onto the interlobe trough (208) and (210) of the first rotatable member (202) and the second rotatable member (204). Alternatively, the cleaning material (206) is fitted onto the interlobe trough (208) and (210) of the first rotatable member (202) and the second rotatable member (204) through a combination comprising, pins, screws, nut and bolt arrangement and the like.
It should be understood that embodiments explained in the description above are only illustrative and do not limit the scope of this invention in terms of type of supercharger used and the mechanism through which the cleaning material is attached onto the interlobe trough of the rotatable member of the supercharger . Many such embodiments and other modifications and changes in the embodiment explained in the description are envisaged. The scope of the invention is only limited by the scope of the claims.

Claims

We Claim:
A supercharger (200) for an engine (102), located along the inlet to an engine (102), said supercharger (200) having a first rotatable member (202) and a second rotatable member (204), characterized in that said supercharger (200) adapted to receive recirculated exhaust gas from an engine (102) along with fresh air; and said supercharger (200) provided with a cleaning material (206), said cleaning material (206) is provided in a manner such that at least a part of said first rotatable member (202) and at least a part of said second rotatable member (204) in said supercharger (200) contacts said cleaning material (206).
The supercharger (200) of claim 1, wherein said cleaning material (206) is provided on the interlobe trough (208) and (210) of said first rotatable member (202) and said second rotatable member (204).
The supercharger (200) of claim 1, wherein said cleaning material (206) is glued onto said interlobe trough (208) and (210) of said first rotatable member (202) and said second rotatable member (204).
4. The supercharger (200) of claim 1 wherein said cleaning material (206) is press fitted onto said interlobe trough of said first rotatable member (202) and said second rotatable member (204).
5. The supercharger (200) of claim 1, wherein said cleaning material (206) is snap fitted onto said interlobe trough of said first rotatable member (202) and said second rotatable member (204).
6. The supercharger (200) of claim 1, wherein said cleaning material (206) is fitted onto said interlobe trough of said first rotatable member (202) and said second rotatable member (204) through a combination comprising, pins, screws, nut and bolt arrangement and the like.
7. The supercharger (200) of claim 1, wherein said first rotatable member (202) contacts said cleaning material (206) provided on said second rotatable member (204).
8. The supercharger (200) of claim 1, wherein said second rotatable member (204) contacts said cleaning material (206) provided on said first rotatable member (202).
9. The supercharger (200) of claim 1, wherein said cleaning material (206) made from rubber.
10. The supercharger (200) of claim 1, wherein said supercharger (200) is a roots type supercharger.
PCT/EP2015/081297 2015-01-23 2015-12-28 A supercharger for an engine WO2016116251A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
RU2017129743A RU2699893C2 (en) 2015-01-23 2015-12-28 Supercharger for engine
KR1020177020550A KR20170102501A (en) 2015-01-23 2015-12-28 Engine supercharger
DE112015004591.0T DE112015004591T5 (en) 2015-01-23 2015-12-28 Charger for a motor
CN201580074261.0A CN107208529B (en) 2015-01-23 2015-12-28 Supercharger for engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN367CH2015 2015-01-23
IN367/CHE/2015 2015-01-23

Publications (1)

Publication Number Publication Date
WO2016116251A1 true WO2016116251A1 (en) 2016-07-28

Family

ID=55077501

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/081297 WO2016116251A1 (en) 2015-01-23 2015-12-28 A supercharger for an engine

Country Status (5)

Country Link
KR (1) KR20170102501A (en)
CN (1) CN107208529B (en)
DE (1) DE112015004591T5 (en)
RU (1) RU2699893C2 (en)
WO (1) WO2016116251A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB535554A (en) * 1939-04-22 1941-04-11 Gen Motors Corp Improvements relating to rotary blowers and pumps
JPS58148292A (en) * 1982-02-26 1983-09-03 Hitachi Ltd Surface processing of rotor of a screw compressor
US5509394A (en) * 1993-02-03 1996-04-23 Mazda Motor Corporation Internal combustion engine with supercharger
US20090133718A1 (en) * 2006-09-20 2009-05-28 Borg Warner Inc. Automatic compressor stage cleaning for air boost systems
US20110131980A1 (en) * 2010-03-31 2011-06-09 Ford Global Technologies, Llc Dual-Inlet Supercharger for EGR Flow Control

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2270350C1 (en) * 2004-06-23 2006-02-20 Борис Федорович Кочетков Method of and device for supercharging with simultaneous reduction of noise of internal combustion engine
DE202010012494U1 (en) * 2010-09-13 2011-12-15 Hugo Vogelsang Maschinenbau Gmbh Rotary pump and rotary piston

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB535554A (en) * 1939-04-22 1941-04-11 Gen Motors Corp Improvements relating to rotary blowers and pumps
JPS58148292A (en) * 1982-02-26 1983-09-03 Hitachi Ltd Surface processing of rotor of a screw compressor
US5509394A (en) * 1993-02-03 1996-04-23 Mazda Motor Corporation Internal combustion engine with supercharger
US20090133718A1 (en) * 2006-09-20 2009-05-28 Borg Warner Inc. Automatic compressor stage cleaning for air boost systems
US20110131980A1 (en) * 2010-03-31 2011-06-09 Ford Global Technologies, Llc Dual-Inlet Supercharger for EGR Flow Control

Also Published As

Publication number Publication date
RU2699893C2 (en) 2019-09-11
CN107208529B (en) 2021-08-17
RU2017129743A (en) 2019-02-25
CN107208529A (en) 2017-09-26
DE112015004591T5 (en) 2017-08-31
RU2017129743A3 (en) 2019-07-17
KR20170102501A (en) 2017-09-11

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