6 results about "Oil temperature" patented technology

An engine unit includes a valve driving mechanism in which a cam having its cam profile axially varying continuously is slid along the axis of the cam shaft to control continuously a lift characteristic of an intake valve to be steplessly variable. In the control device of the engine, when the engine is, determined to be in a idling state by an idling-state determining unit, a target cam position is obtained according to a target valve lift amount calculated based on the cooling water temperature by a target cam position calculated unit, and the target cam position is corrected according to atmospheric pressure, an engine oil temperature, an ATF temperature, and an intake temperature, so that an engine rotation will be stabilized in the idling state.

The invention provides a liquid nitrogen-bath oil double-medium compatible high-vacuum temperature adjusting system and a temperature adjusting method. The system comprises a vacuum container and a heat sink module in the vacuum container, wherein a vacuum adjusting module, a liquid nitrogen refrigeration module, a bath oil temperature adjusting module and a measurement control module are arrangedoutside the vacuum container; a liquid nitrogen pipeline is arranged on the surface, facing the side wall of the vacuum container, of the heat sink module, a bath oil pipeline is arranged on the other side and communicates with the liquid nitrogen refrigeration module, and the bath oil pipeline communicates with the bath oil temperature adjusting module; the vacuum adjusting module is used for adjusting the vacuum degree of the vacuum container; the liquid nitrogen refrigeration module provides a liquid nitrogen refrigeration environment for the vacuum container through the heat sink module;and the bath oil temperature adjusting module provides a bath oil refrigeration environment for the vacuum container through the heat sink module. The system and the method of the invention have the beneficial effects that a dual-refrigeration mode of liquid nitrogen refrigeration and bath oil temperature adjustment is employed for a thermal vacuum test environment, the performance characteristicsof bath oil temperature adjustment equipment are reserved, the test advantages of liquid nitrogen low-temperature equipment are also maintained, and the alternate relay use of the two refrigeration modes in a test process can be achieved.