发明名称 |
HYDRAULIC PRESSURE SUPPLY SYSTEM OF AUTOMATIC TRANSMISSION |
摘要 |
An automatic-transmission hydraulic pressure supply system includes a low-pressure hydraulic pump supplying low hydraulic pressure to a first low-pressure line, a low-pressure regulator valve recirculating through a first recirculation line a portion of the hydraulic pressure supplied through the first low-pressure line to regulate the hydraulic pressure of the first low-pressure line, and supplying the regulated hydraulic pressure to a low pressure portion through a second low-pressure line, a high-pressure hydraulic pump receiving a portion of the hydraulic pressure of the first low-pressure line, increasing and supplying the increased hydraulic pressure to a high pressure portion through a high-pressure line, and a high-pressure regulator valve recirculating a portion of the hydraulic pressure supplied through the high-pressure line through second and/or third recirculation lines, and supplying the regulated hydraulic pressure to the high pressure portion. |
申请公布号 |
US2014294618(A1) |
申请公布日期 |
2014.10.02 |
申请号 |
US201314081781 |
申请日期 |
2013.11.15 |
申请人 |
Hyundai Motor Company |
发明人 |
Jo Se Hwan;Hwang Jin Young;Wi Taehwan |
分类号 |
F16H61/4017 |
主分类号 |
F16H61/4017 |
代理机构 |
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代理人 |
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主权项 |
1. A hydraulic pressure supply system of an automatic transmission for a vehicle, comprising:
a low-pressure hydraulic pump generating a low hydraulic pressure and supplying the low hydraulic pressure to a first low-pressure line; a low-pressure regulator valve recirculating through a first recirculation line a portion of the hydraulic pressure supplied through the first low-pressure line to regulate the hydraulic pressure of the first low-pressure line, and supplying the regulated hydraulic pressure to a low pressure portion through a second low-pressure line; a high-pressure hydraulic pump receiving a portion of the hydraulic pressure of the first low-pressure line, increasing it to a high hydraulic pressure, and supplying the increased hydraulic pressure to a high pressure portion through a high-pressure line; and a high-pressure regulator valve recirculating a portion of the hydraulic pressure supplied through the high-pressure line through a second recirculation line or through second and third recirculation lines according to a strength of the hydraulic pressure supplied through the high-pressure line to regulate the hydraulic pressure of the high-pressure line, and supplying the regulated hydraulic pressure to the high pressure portion. |
地址 |
Seoul KR |