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<><FONT color=black><FONT size=2>作 者:吴志洪</FONT></FONT></P>
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<><FONT color=black><FONT size=2>送选单位:吉林大学珠海学院</FONT></FONT></P>
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/ T" j5 k! f- R/ R: \5 I/ I<><FONT color=black><FONT size=2>作品编号:20080916130</FONT></FONT></P>6 |4 ^/ J1 c' D8 Q4 C0 a
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9 `) j9 T z7 d+ z$ x/ |<><FONT color=black><FONT size=2>作品名称:HY_8V75Q发动机</FONT></FONT></P>1 `1 n4 n7 g ?# T7 ]$ U2 a$ {0 Q0 O) b
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/ d6 b( e0 m1 Q4 L. J<><FONT color=black><FONT size=2>作品介绍:</FONT></FONT></P>/ b* d; G" t" \8 i$ L. V9 |
<><FONT color=#000000 size=2></FONT> </P><FONT color=#000000><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-comffice:smarttags" /><st1:chmetcnv UnitName="毫米" SourceValue="0" HasSpace="False" Negative="False" NumberType="1" TCSC="0" w:st="on"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">
; H2 L; v; A% v. I<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes"><FONT face="Times New Roman"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">HY_8V75Q</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">发动机是我查阅大量资料和图片,再进行设计的,由于数据和资料来源十分有限,所以建模也很困难,总共有</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">139</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">个部件,</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">789</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">个装配件,尽可能合理的把发动机设计出来。为了方便修改,开始建模时则用了线条把关键构建进行模拟和</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">CAE</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">的相关测试,保证以后建模能少出错和参数化。</SPAN></FONT></SPAN></SPAN></SPAN></SPAN></st1:chmetcnv></P></SPAN></FONT>
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" e& T+ O8 P" j+ ~<P><FONT color=#000000 size=2>作品欣赏:</FONT></P>8 u5 Y) G5 K7 k1 p% a3 z6 Q
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$ K" K9 f! z, U# K" e2 \% X5 z- c<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT color=#000000>发动机结构复杂,故先把关键的构件用线段模拟,包括运动仿真,然后再以这些线条为模板建模装配,这样可以减少出错和提高建速度,并且也利于修改。</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o:p></o:p></SPAN></P>4 t j! u$ F7 M/ d5 X) y5 w" e4 b
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2 S4 Z# s/ ]0 B, K# `' d6 Y<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><FONT face="Times New Roman">8</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">缸</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><FONT face="Times New Roman">V</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">形排列的机体,主要特点是机体宽度大,高度和长度较小,质量轻且外形尺寸较小。由于宽度较大,将显著地提高机体的抗扭转刚度和横向及纵向的抗弯曲刚度。其机型适合家庭轿车的动力机体,并且有马力大,工作平稳,噪音低,结构紧凑,便于布置,高速平稳的优点。</SPAN></P>
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><FONT face="Times New Roman">HY_8V75Q</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">发动机气缸套采用的是湿缸套,便于散热。</SPAN></P>) L" C$ j8 w b; |+ {$ h0 S$ Q
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9 L0 F/ L) `! C7 s<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">气缸盖是与机体一起形成发动机的密封空间的构件,气缸盖上有燃烧室、水套、润滑油道、进排气道、气门驱动机构、火花塞和喷油器等,因此气缸盖结构胶复杂。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">V8</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">发动机主要采用是整体式气缸盖。</SPAN></SPAN></P>
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" T8 H, ?% N$ U C# _4 u5 S<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>湿式润滑方式发动机的油底壳是储存润滑油的容器,常用铝合金铸造或薄钢板冲压成形,衬以垫片,用多个螺钉紧固在曲轴箱下面。</FONT></SPAN></P>
5 Z) A$ U: k8 s) I/ t& f<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3></FONT></SPAN> </P>6 f6 F8 l" o: T L F
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>曲柄连杆机构是汽车发动机的主要部分,混合气燃烧产生的压力推动活塞在气缸内运动,通过连杆转变成</FONT></SPAN></P>: R) V& n( ^$ j7 f. h# U
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>曲轴的旋转运动,输出功率。曲柄连杆机构包括活塞、连杆组和曲轴组三部分。</FONT></SPAN></P>
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4 ^* U. k2 Z' Z+ I4 ^ @7 e<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>活塞组在气缸内承受和传递燃烧气体压力,与气缸盖、与缸套内壁构成密封的燃烧室空间。活塞组包括活塞、活塞环(气环和油环)、活塞销及活塞销卡环等零件。</FONT></SPAN></P>
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>连杆组在做功行程时推动曲轴转动对外输出功率,在其他将曲轴的转动传递给活塞,推动活塞往复运动,连杆普遍用中碳钢和中碳合金钢材料模锻制成的。</FONT></SPAN></P>
, M+ y1 {1 b+ C' u7 }<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3></FONT></SPAN> </P>
# @7 T/ d% c- l1 U<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">
</SPAN></P><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">! |. b q3 D, S
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">气门品类很多,配器系统也越来越先进,其中日本的本田公司的</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">VTEC</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">汽油机的可变凸轮配气机构,通过高速凸轮和低速凸轮变动,使发动机在不同转速下可以获得较好的动力性能和经济性能。</SPAN></FONT></P>, ^6 ?, h' _$ T, q
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"></SPAN></FONT> </P>) v( Z% \: O' v8 {2 E& n0 O' \
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"></SPAN></FONT> </P>
1 B/ c+ B6 D" K L<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">
</SPAN></FONT></P><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">: ?" V& |0 `2 b; A
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>曲轴</FONT></SPAN></P>
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- {. x" I$ Q1 [/ t<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3></FONT></SPAN> </P>
& T/ z* O2 O5 Y<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3></FONT></SPAN> </P>
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">飞轮</SPAN></SPAN></P>; o% o& a0 v: V- i# k
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'"></SPAN></SPAN> </P>, N8 {7 C( V2 q
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">
</SPAN></SPAN></P><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">
8 M0 A5 C% L' f6 j7 V# K1 V; B' A) W. g<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">凸轮轴上的凸轮表面型线控制气门开闭,满足发动机对换气过程的需求。凸轮轴用优质铸铁、中碳钢或中碳合金钢组成。</SPAN></P>
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3 v5 A4 M0 D, D" m<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">这是运动系统</SPAN></P>
+ r" N' d/ `+ e! D/ O1 |<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"></SPAN> </P>( m/ Y; r( v6 @& R, N
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7 H3 s3 d) g( A* H+ C( V/ A<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"></SPAN> </P>/ J- a, x+ F+ Z
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">火花塞是在电极间放电常生火花,点燃压缩混合气,使汽油机正常工作,按</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">“</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">热值</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">”</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">或绝缘体群部长度区分为热型、中型和冷型。</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">V8</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">采用的中型火花塞。</SPAN></P>
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! M% Y4 q2 F5 k' ][ 本帖最后由 forestone 于 2008-9-18 09:41 编辑 ] |
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