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发明公开
EP1531291A3 Belt-type continuously variable transmission 审中-公开
皮带式无级变速器

Belt-type continuously variable transmission
摘要：
A belt-type continuously variable transmission (3) comprises a drive pulley (10) including cylinder (20) and cramp chambers (30) which vary an effective radius of the drive pulley (10) when applied with a hydraulic pressure, a driven pulley (40) including cylinder (60) and cramp chambers (50) which vary an effective radius of the driven pulley (40) when applied with a hydraulic pressure, a belt operatively put around the drive (10) and driven pulleys (40) and a hydraulic circuit that applies the cylinder (80,60) and cramp chambers (30,50) of the drive (10) and driven pulleys (40) with the hydraulic pressure to vary the effective radii of the drive (10) and driven pulleys (40). The hydraulic circuit includes a line pressure passage that has a line pressure regulating valve (110) installed therein for producing a line pressure in the line pressure passage. The cramp chambers of the drive (10) and driven pulleys (40) are substantially the same in a pressure receiving area and are connected to the line pressure passage to be fed with the line pressure.
摘要（中）：

一种带式无级变速器（3）包括驱动带轮（10），该驱动带轮（10）包括当施加液压时改变驱动带轮（10）的有效半径的圆筒（20）和夹紧腔室（30），从动带轮 （40），其包括当施加有液压时改变从动带轮（40）的有效半径的圆筒（60）和夹紧腔室（50），可操作地围绕驱动器（10）和从动带轮（40） 液压回路，该液压回路将液压压力施加到驱动装置（10）和从动带轮（40）的缸体（80,60）和夹紧腔室（30,50）以改变驱动装置（10）和从动带轮 （40）。 该液压回路包括管路压力通路，该管路压力通路具有安装在其中的管路压力调节阀（110），用于在管路压力通路中产生管路压力。 驱动装置（10）和从动带轮（40）的夹紧室在压力接收区域中基本相同，并与管路压力通路连接以供给管路压力。

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