JPH03175185A - Scroll compressor - Google Patents
Scroll compressorInfo
- Publication number
- JPH03175185A JPH03175185A JP31602789A JP31602789A JPH03175185A JP H03175185 A JPH03175185 A JP H03175185A JP 31602789 A JP31602789 A JP 31602789A JP 31602789 A JP31602789 A JP 31602789A JP H03175185 A JPH03175185 A JP H03175185A
- Authority
- JP
- Japan
- Prior art keywords
- crankshaft
- axis
- slider
- scroll
- main shaft
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- 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
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C29/0057—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions for eccentric movement
-
- 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
- F04C29/0021—Systems for the equilibration of forces acting on the pump
-
- 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
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/807—Balance weight, counterweight
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野1
この発明は、揺動スクロールの径方向のスライダー機構
を備えたスクロール圧縮機に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a scroll compressor equipped with a radial slider mechanism for an oscillating scroll.
〔従来の技術1
第3図は例えば特開昭63−80088号公報に示され
た従来のスクロール圧縮機を示す断面側面図、第4図は
第3図の要部を示す断面図、第5図はスライダー機構の
作動状態を表わす断面図である。[Prior art 1] Fig. 3 is a cross-sectional side view showing a conventional scroll compressor disclosed in, for example, Japanese Unexamined Patent Publication No. 63-80088, Fig. 4 is a cross-sectional view showing the main parts of Fig. 3, and Fig. 5 The figure is a sectional view showing the operating state of the slider mechanism.
図において、(1)は固定スクロール、(2)は揺動ス
クロール、(3)は揺動スクロール(2)の合板、(4
)は合板(3)の背面中央に突設した揺動スクロール軸
受、(5)は固定スクロール(1)と板バネで連結され
たフレーム、(6)は揺動スクロール(2)の自転を防
止しかつ半径方向に揺動可能にフレーム(5)に連結す
るためのリング状のオルダムリング、(7)はクランク
軸で、その端部にはスライダー(8)が装着されかつク
ランク軸(7)の軸線より偏心した状態で揺動スクロー
ル軸受(4)に嵌合される。(9)はクランク軸(8)
の回転駆動モーターを構成するステーター (10)は
クランク軸(7)と−体のローターであり、反偏心方向
にバランスウェイト(11)また反偏心方向にバランス
ウェイト(12)が取り付けられている。またクランク
軸(7)には両端を連通ずる給油穴(13)が軸心な通
る穴と偏心した穴とがクランク軸(7)の中央部で連通
ずるようにあけられている。In the figure, (1) is a fixed scroll, (2) is an oscillating scroll, (3) is the plywood of the oscillating scroll (2), and (4) is an oscillating scroll.
) is an oscillating scroll bearing protruding from the center of the back of the plywood (3), (5) is a frame connected to the fixed scroll (1) with a leaf spring, and (6) is to prevent the oscillating scroll (2) from rotating. In addition, a ring-shaped Oldham ring (7) is a crankshaft for connecting to the frame (5) so as to be swingable in the radial direction, and a slider (8) is attached to the end of the Oldham ring (7). It is fitted into the oscillating scroll bearing (4) in a state eccentric from the axis of the scroll bearing (4). (9) is the crankshaft (8)
The stator (10) constituting the rotary drive motor is a rotor that is connected to the crankshaft (7), and a balance weight (11) and a balance weight (12) are attached in the counter-eccentric direction and in the counter-eccentric direction, respectively. The crankshaft (7) is also provided with an oil supply hole (13) that communicates with both ends thereof, such that an axial hole and an eccentric hole communicate with each other at the center of the crankshaft (7).
なお、図中rはクランク軸(7)の軸心(固定スクロー
ル(1)の渦巻の中心)からの揺動スクロール軸受(4
)の軸心(揺動スクロール(2)の渦巻の中心)との距
離すなわち偏心量である。Note that r in the figure indicates the oscillating scroll bearing (4) from the axis of the crankshaft (7) (the center of the spiral of the fixed scroll (1)).
) from the axis (the center of the spiral of the oscillating scroll (2)), that is, the amount of eccentricity.
Fcは揺動スクロール(2)の旋回運動時に発生する揺
動スクロール(2)とスライダー(8)との遠心力、F
gは遠心力Fcとほぼ直角な方向のガス負荷、Fは遠心
力Fcとガス負荷Fgとの合成力、Cは固定スクロール
(1)と揺動スクロール(2)との半径方向のすきまで
ある。またOはスライダー(9)の中心、○′は主軸の
中心であり、℃はスライダー(9)のスライド量00′
である。Fc is the centrifugal force between the swinging scroll (2) and the slider (8) generated during the swinging movement of the swinging scroll (2), F
g is the gas load in a direction almost perpendicular to the centrifugal force Fc, F is the resultant force of the centrifugal force Fc and the gas load Fg, and C is the radial clearance between the fixed scroll (1) and the swinging scroll (2). . Also, O is the center of the slider (9), ○' is the center of the main axis, and °C is the sliding amount of the slider (9) 00'
It is.
次に動作について説明する。クランク軸(7)が回転す
ると、揺動スクロール(2)はオルダムリング(6)に
ガイドされながらクランク軸(7)の主軸部(7a)の
軸線を中心に旋回運動な行い、圧縮作用を行う。Next, the operation will be explained. When the crankshaft (7) rotates, the oscillating scroll (2) performs an orbiting motion around the axis of the main shaft (7a) of the crankshaft (7) while being guided by the Oldham ring (6), thereby performing a compression action. .
定常運転時においては、揺動スクロール(2)は旋回運
転時の遠心力F、を利用してクランク軸(7)端部の軸
心と偏心したスライダー装着軸部(7b)に装着された
スライダー(8)により偏心方向に偏心量rまで可変し
、揺動スクロール(2)を固定スクロール(1)に押し
付け、偏心方向のすきまCをOとして圧縮作用する。ま
たスライダー(8)は偏心方向に偏心量rまでスライド
した状態より更に偏心方向、反偏心方向にスライド可能
なため固定スクロール(1)と揺動スクロール(2)と
のスクロール歯形状が所定の寸法よりずれた場合でも、
両スクロール歯が接触するまでスライドするため、一回
転中のすきまCは常にOとすることができる。なお、第
5図(a)はスライド量A=r時のすきまC20の状態
、第5図(b)は12<r時のすきまC>Oの状態を示
す。During steady operation, the oscillating scroll (2) uses the centrifugal force F during the swinging operation to move the slider mounted on the slider mounting shaft (7b) eccentric to the axis of the end of the crankshaft (7). By (8), the eccentricity is varied up to r in the eccentric direction, the oscillating scroll (2) is pressed against the fixed scroll (1), and a compression action is performed with the clearance C in the eccentric direction set to O. In addition, since the slider (8) can slide further in the eccentric direction and in the anti-eccentric direction from the state where it has been slid in the eccentric direction to the eccentric amount r, the scroll tooth shapes of the fixed scroll (1) and the oscillating scroll (2) have a predetermined size. Even if it deviates from
Since both scroll teeth slide until they come into contact, the clearance C during one rotation can always be O. Note that FIG. 5(a) shows the state of the clearance C20 when the sliding amount A=r, and FIG. 5(b) shows the state of the clearance C>O when 12<r.
【発明が解決しようとする課題1
従来のスクロール圧縮機は以上のように構成されている
ので、クランク軸(7)のスライダー装着軸部(7b)
の軸心はクランク軸(7)の主軸部(7a)の軸心と偏
心しているため、偏心加工を必要としたり、またクラン
ク軸両端を連通ずる給油穴(3)をあける場合は穴径に
制約をうけたりしてクランク軸(7)の主軸部(7a)
の軸心にあけられないなどの問題点があった。[Problem to be solved by the invention 1] Since the conventional scroll compressor is configured as described above, the slider mounting shaft portion (7b) of the crankshaft (7)
The axis of the crankshaft (7) is eccentric to the axis of the main shaft (7a), so if eccentric machining is required, or if the oil supply hole (3) that communicates with both ends of the crankshaft is drilled, the hole diameter must be adjusted. Due to restrictions, the main shaft (7a) of the crankshaft (7)
There were problems such as not being able to drill in the center of the shaft.
この発明は上記のような問題点を解消するためになされ
たもので、クランク軸の偏心加工が不要で、クランク軸
両端を連通ずる給油穴をあける場合も穴径の制約が少な
くまたクランク軸の主軸部の軸心にも容易にあけられる
クランク軸を得ることができるスクロール圧縮機を得る
ことを目的とする。This invention was made to solve the above-mentioned problems, and it does not require eccentric machining of the crankshaft, there is less restriction on the hole diameter when drilling a oil supply hole that communicates with both ends of the crankshaft, and there is no need for eccentric machining of the crankshaft. It is an object of the present invention to provide a scroll compressor capable of obtaining a crankshaft that can be easily drilled into the axis of a main shaft part.
この発明に係るスクロール圧縮機は、クランク軸の主軸
部の軸心とスライダー装着軸部の軸心とを一致させると
ともに、スライダーのスライド溝をクランク軸の主軸部
を原点としてスライダー中心が偏心方向には偏心量以上
スライド可能なよう乙マ 牛t、暉占上0万橿j八有向
tマt→7うンドズ可的なようにスライダーのスライド
溝を形成したものである。The scroll compressor according to the present invention aligns the axis of the main shaft of the crankshaft with the axis of the slider mounting shaft, and also aligns the slide groove of the slider so that the center of the slider is eccentrically aligned with the main shaft of the crankshaft as the origin. The slide groove of the slider is formed so that it can slide more than the eccentric amount.
[作用]
この発明におけるスクロール圧縮機は、定常運転におい
てスライダーの中心が偏心方向に偏心量分だけずれた位
置にスライドするため、クランク軸の主軸部の軸心とス
ライダー装着軸部の軸心とは一致するとともに、反偏心
方向にはスライド不可能である。[Function] In the scroll compressor of the present invention, in steady operation, the center of the slider slides to a position shifted by the amount of eccentricity in the eccentric direction, so that the axis of the main shaft of the crankshaft and the axis of the slider mounting shaft are aligned. coincide with each other, and cannot slide in the anti-eccentric direction.
[実施例]
以下、この発明の一実施例を第1図および第2図につい
て説明する。第1図はこの発明におけるスクロール圧縮
機の断面側面図、第2図は第1図の要部断面図であり、
全体の構成は前記した従来のものと同様であるので同一
箇所には同一符号を付して説明を省略する。図において
、(15)はクランク軸で、その端部はクランク軸(1
5)と同軸で一体に形成されたスライダー装着軸部(1
5b)であり、スライダー(8)のスライド溝(Q
2 ) 、II<土だ善 −x h )
ラ 弓−ノ 々 tnbrlq)rr’+ 士 ホ
山真代(15a)の軸線より偏心した状態で揺動スクロ
ール軸受(4)に嵌合される。またクランク軸(15)
には軸心を通る給油穴(13)があけられている。[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a cross-sectional side view of a scroll compressor according to the present invention, and FIG. 2 is a cross-sectional view of the main part of FIG.
Since the overall configuration is similar to the conventional one described above, the same parts are given the same reference numerals and the explanation will be omitted. In the figure, (15) is the crankshaft, the end of which is the crankshaft (15).
Slider mounting shaft part (1) coaxially formed integrally with 5)
5b), and the slide groove (Q
2), II<Tsuchidazen-x h)
It is fitted into the oscillating scroll bearing (4) in a state eccentric from the axis of the mountain mayo (15a). Also, the crankshaft (15)
A refueling hole (13) is drilled through the shaft center.
図中rはクランク軸(15)の偏心量であり、aはスラ
イダー装着軸部(15b)のスライド溝(8a)との接
触長さの半長である。t)+ 、 bzはスライド溝(
8a)のスライダー装着軸部(15b)との接触可能長
さであり、スライダー(8)の中心Oより偏心量rずれ
た位置○′ (すなわちスライダー装着軸部の中心)よ
り偏心側にbl、反偏心側にbzである。In the figure, r is the eccentricity of the crankshaft (15), and a is a half length of the contact length of the slider mounting shaft (15b) with the slide groove (8a). t)+, bz are slide grooves (
8a), which is the length that allows contact with the slider mounting shaft (15b), and is eccentrically displaced from the center O of the slider (8) by an eccentric amount r from ○' (i.e., the center of the slider mounting shaft). bz is on the anti-eccentric side.
次に動作について説明する。クランク軸(15)が回転
すると、揺動スクロール(2)はオルダムリング(6)
にガイドされながら、クランク軸(15)の主軸部(1
5a)の軸線を中心に旋回運動を行う。クランク軸(1
5)のスライダー装着軸部(15b)の軸心はクランク
軸(15)の主軸部(15a)の軸心と同軸であるが、
揺動スクロール(2)の軸受部に装着されたスライダー
(8)のスライド溝(8a)がbz >aと偏心方向に
偏心量r以上スライド可能なように形成されているため
、揺動スクロール(2)の旋回運動時の遠心力Fcによ
り揺動スクロール(2)を固定スクロール(1)に押し
付け、偏心方向のすきまを常に○として圧縮作用を行う
、スライド溝(8a)はす、<a+rと形成されている
ため、スライダー(8)の中心はクランク軸(15)の
主軸部(15a)の軸心より反偏心方向にはスライドで
きず、遠心力Fcは常に偏心方向に発生し、ローター(
10)に取り付けられたバランスウェイト(11)、(
12)とのかねあいによる異常振動は発生せず、組立時
スライダー(8)をスライダー装着軸部(15b)に偏
心方向を逆に取り付けることもない。Next, the operation will be explained. When the crankshaft (15) rotates, the oscillating scroll (2) rotates through the Oldham ring (6).
While being guided by the main shaft (1) of the crankshaft (15),
Perform a pivoting movement around the axis of 5a). Crankshaft (1
The axis of the slider mounting shaft (15b) in 5) is coaxial with the axis of the main shaft (15a) of the crankshaft (15),
The slide groove (8a) of the slider (8) attached to the bearing of the swinging scroll (2) is formed so that bz > a and can slide in the eccentric direction by an eccentric amount r or more. The oscillating scroll (2) is pressed against the fixed scroll (1) by the centrifugal force Fc during the orbiting movement of 2), and the compression action is performed by always keeping the eccentric clearance ○. Because of this, the center of the slider (8) cannot slide in the anti-eccentric direction from the axis of the main shaft (15a) of the crankshaft (15), and centrifugal force Fc is always generated in the eccentric direction, causing the rotor (
Balance weight (11) attached to (10), (
12) will not occur, and the slider (8) will not be attached to the slider mounting shaft (15b) with its eccentric direction reversed during assembly.
また、クランク軸(15)の主軸部(45a)の軸心を
通り両端が連通ずる給油穴(13)を加工することも容
易に可能である。Furthermore, it is also possible to easily form an oil supply hole (13) that passes through the axis of the main shaft portion (45a) of the crankshaft (15) and has both ends communicating with each other.
[発明の効果]
以上のように、この発明によればクランク軸の主軸部の
軸心とスライダー装着軸部の軸心とを一致させているの
で、クランク軸は偏心加工を必要とせず、クランク軸両
端を連通ずる給油穴をクランク軸の軸心にあけることが
可能であり、クランク軸の強度を弱めにくいなどの効果
がある。またスライダーのスライド溝はスライダー中心
に対し非対称となるが、焼結等の一体成形で加工すれば
簡単に加工できるし、さらにスライド溝はスライダー中
心がクランク軸の主軸部の軸心より偏心方向にスライド
できないよう形成されているためローターのバランスウ
ェイトとのかねあいによる異常振動は発生しないなどの
効果もある。[Effects of the Invention] As described above, according to the present invention, the axis of the main shaft portion of the crankshaft and the axis of the slider mounting shaft portion are aligned, so the crankshaft does not require eccentric machining, and the crankshaft It is possible to drill an oil supply hole in the axial center of the crankshaft that communicates both ends of the shaft, which has the effect of making it difficult to weaken the strength of the crankshaft. Also, the slide groove of the slider is asymmetrical with respect to the slider center, but it can be easily processed by integral molding such as sintering, and the slide groove is made so that the slider center is eccentric to the axis of the main shaft of the crankshaft. Since it is formed so that it cannot slide, it also has the effect of eliminating abnormal vibrations due to conflicts with the rotor's balance weight.
第1図はこの発明の一実施例によるスクロール圧縮機を
示す断面側面図、第2図(a)、(b)は第1図の要部
であるスライダー作動状態を示す横断面図、第3図は従
来のスクロール圧縮機の断面側面図、第4図(a)、(
b)は第3図の要部を示す縦断面図及び横断面図、第5
図(a)、(b)は第3図のスライダー機構の作動状態
を表わす横断面図である。
図において、(1)は固定スクロール、(2)は揺動ス
クロール、(5)はフレーム、(8)はスライダー (
8a)はスライド溝、(13)は給油穴、(15)はク
ランク軸、(15a)は主軸部、(15b)はスライダ
ー装着軸部である。
なお、図中同一符号は同一または相当部分を示す。FIG. 1 is a sectional side view showing a scroll compressor according to an embodiment of the present invention, FIGS. The figure is a cross-sectional side view of a conventional scroll compressor, Figure 4 (a), (
b) is a vertical cross-sectional view and a cross-sectional view showing the main parts of Figure 3;
Figures (a) and (b) are cross-sectional views showing the operating state of the slider mechanism in Figure 3. In the figure, (1) is a fixed scroll, (2) is an oscillating scroll, (5) is a frame, and (8) is a slider (
8a) is a slide groove, (13) is an oil supply hole, (15) is a crankshaft, (15a) is a main shaft portion, and (15b) is a slider mounting shaft portion. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
ことにより圧縮室を形成し、前記揺動スクロールの反圧
縮室側に軸受を設け、クランク軸の一端のスライダー装
着軸部にクランク軸の主軸部の軸線と直角の面内にクラ
ンク軸軸心に対する揺動スクロールの偏心方向にスライ
ド可能に装着したスライダーを前記軸受に嵌合したスク
ロール圧縮機において、前記クランク軸のスライダー装
着軸部の軸心と主軸部の軸心とを一致させたことを特徴
とするスクロール圧縮機。(1) A compression chamber is formed by combining a fixed scroll and an oscillating scroll, a bearing is provided on the side opposite to the compression chamber of the oscillating scroll, and the main shaft of the crankshaft is mounted on the slider mounting shaft at one end of the crankshaft. In a scroll compressor in which a slider fitted to the bearing is fitted in a plane perpendicular to the axis of the crankshaft so as to be slidable in an eccentric direction of the oscillating scroll with respect to the axis of the crankshaft, the axis of the slider mounting shaft of the crankshaft and A scroll compressor characterized in that the axis of the main shaft is aligned with the axis of the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31602789A JPH0826860B2 (en) | 1989-12-04 | 1989-12-04 | Scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31602789A JPH0826860B2 (en) | 1989-12-04 | 1989-12-04 | Scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03175185A true JPH03175185A (en) | 1991-07-30 |
| JPH0826860B2 JPH0826860B2 (en) | 1996-03-21 |
Family
ID=18072437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31602789A Expired - Lifetime JPH0826860B2 (en) | 1989-12-04 | 1989-12-04 | Scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0826860B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6361296B1 (en) * | 1996-09-06 | 2002-03-26 | Mitsubishi Heavy Industries, Ltd. | Scroll type compressor having a gap that collects and supplies oil to an oil supply path or the eccentric bearing |
| WO2006067844A1 (en) | 2004-12-22 | 2006-06-29 | Mitsubishi Denki Kabushiki Kaisha | Scroll compressor |
| WO2015107705A1 (en) * | 2014-01-20 | 2015-07-23 | 三菱電機株式会社 | Scroll compressor |
-
1989
- 1989-12-04 JP JP31602789A patent/JPH0826860B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6361296B1 (en) * | 1996-09-06 | 2002-03-26 | Mitsubishi Heavy Industries, Ltd. | Scroll type compressor having a gap that collects and supplies oil to an oil supply path or the eccentric bearing |
| WO2006067844A1 (en) | 2004-12-22 | 2006-06-29 | Mitsubishi Denki Kabushiki Kaisha | Scroll compressor |
| JPWO2006067844A1 (en) * | 2004-12-22 | 2008-06-12 | 三菱電機株式会社 | Scroll compressor |
| EP1818540A4 (en) * | 2004-12-22 | 2009-03-11 | Mitsubishi Electric Corp | SPIRAL COMPRESSOR |
| US7766633B2 (en) | 2004-12-22 | 2010-08-03 | Mitsubishi Electric Corporation | Scroll compressor having a slider with a flat surface slidable and fitted in a notch part of a main shaft |
| JP4793267B2 (en) * | 2004-12-22 | 2011-10-12 | 三菱電機株式会社 | Scroll compressor |
| WO2015107705A1 (en) * | 2014-01-20 | 2015-07-23 | 三菱電機株式会社 | Scroll compressor |
| JPWO2015107705A1 (en) * | 2014-01-20 | 2017-03-23 | 三菱電機株式会社 | Scroll compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0826860B2 (en) | 1996-03-21 |
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