| 摘要 |
<p>Disclosed are a bypass valve (2) and an automatic transmission oil cooling system having the bypass valve, the system comprising a first circulation circuit (C1) and a second circulation circuit (C2), wherein an automatic transmission oil in the first circulation circuit (C1) flows back to an automatic transmission (1) via a cooling device that is connected to a cooling pipeline; the automatic transmission oil in the second circulation circuit (C2) directly flows back to the automatic transmission (1) via the cooling pipeline; valves are respectively arranged in the first and second circulation circuits (C1, C2) and are integrated on a temperature-sensing mechanical control valve (24) in a bypass valve; the valves can control the flowing of the automatic transmission oil through the first or second circulation circuit (C1, C2); and the flow direction of the automatic transmission oil is controlled according to the temperature of the automatic transmission oil, such that the automatic transmission oil selectively flows through the first or second circulation circuit (C1, C2), so that the oil temperature is always within a relatively reasonable temperature range, and a vehicle can be adapted to tropical conditions, as well as environmental conditions in frigid zones.</p> |
