摘要:
A system for accurately and reliably controlling an electric oil pump includes a control portion adapted to control rotation speed of the motor of the electric oil pump, a regulator valve including a valve body provided with a plurality of ports, a valve spool inserted in the valve body and an elastic member adapted to apply elastic force to the valve spool, and a switch mounted on one side of the valve body including first and second contact points, wherein the control portion increases the rotation speed of the motor when the switch is on and maintains the rotation speed of the motor when the switch is off.
摘要:
An oil supply apparatus for a vehicle may include an oil pump, a first rotary member provided to the oil pump such that the oil pump may be rotatably operated by the first rotary member, a second rotary member restricted from rotating with respect to the first rotary member in a first direction, the second rotary member being allowed to rotate with respect to the first rotary member in a second direction opposite to the first direction, and a third rotary member allowed to rotate in the first direction with respect to the first rotary member, the third rotary member being restricted from rotating with respect to the first rotary member in the second direction opposite to the first direction, wherein the second rotary member and the third rotary member may be respectively connected to power sources providing drive forces in directions opposite to each other.
摘要:
A hydraulic pressure control apparatus for an automatic transmission may include a first hydraulic pump connected with an oil tank to receive oil from the oil tank, having a first motor, and adapted to generate a low pressure through an operation of the first motor, a second hydraulic pump connected with the first hydraulic pump to receive the low pressure, having a second motor, and adapted to generate a high pressure through an operation of the second motor, a first regulating valve adapted to receive the low pressure from the first hydraulic pump and to regulate a first operating pressure to supply to the torque converter, and a second regulating valve adapted to receive the high pressure from the second hydraulic pump and to regulate a second operating pressure to supply to the powertrain.
摘要:
A wireless radio frequency coil for magnetic resonance imaging (MRI) is provided. The wireless radio frequency coil including a wireless radio frequency coil unit configured to transmit, receive or transmit and receive a radio frequency signal; a power supply configured to provide a power voltage for operation of the wireless radio frequency coil unit; a switch connected to the power supply and the wireless radio frequency coil unit; a sensor configured to detect signals discharged from a space in which the wireless radio frequency coil unit is located; and a controller configured to provide or shut off the power voltage to the wireless radio frequency coil unit by controlling the switch according to a result obtained from the sensor.
摘要:
A vane pump may include an oval fixed portion of which an outer circumference may be oval, a rotation ring that may be rotatably disposed outside of the oval fixed portion with a gap and in which blade slots may be formed in a predetermined depth along a circular interior circumference of the rotation ring at a predetermined interval from each other, blades of which one end thereof may be slidably inserted into the blade slots respectively and of which the other end slidably contacts an outer surface of the oval fixed portion, an elastic member coupled to the rotation ring and elastically pushing the blades towards the oval fixed portion, and a drive portion connected to the rotation ring and rotating the rotation ring such that oil may be sucked through an expanding space that may be formed between at least two of the blades and oil may be pumped through a shrinking space that may be formed between at least two of the blades.
摘要:
A magnetic resonance imaging (MRI) system obtains a magnetic resonance image of a patient by obtaining a body profile of the patient, transferring the patient inside a magnet of the MRI system based on the obtained body profile, and using a magnetic field of an RF coil based on the obtained body profile.
摘要:
An electromagnetic wave signal, having a pulse train in which pulses having a plurality of frequencies corresponding to multi-type atomic nuclei are arranged in a line, is applied to a target object located in a magnetic field by using a radio frequency (RF) coil in the magnetic field. Data of magnetic resonance signals corresponding to the multi-type atomic nuclei is collected from the RF coil, and multi-type magnetic resonance images corresponding to the multi-type atomic nuclei are generated by using the data of the magnetic resonance signals.
摘要:
A hydraulic pressure control apparatus may include an oil tank, a first hydraulic pump receiving oil from the oil tank generating a low pressure, a second hydraulic pump receiving the low pressure and generating a high pressure, a torque converter and a lubrication portion receiving the low pressure, a powertrain receiving the high pressure, a pump connecting line connecting the first hydraulic pump with the second hydraulic pump, a first bypass line adapted to supply hydraulic pressure from the oil tank to the second hydraulic pump by detouring around the first hydraulic pump, and a second bypass line bifurcated from the pump connecting line so as to supply hydraulic pressure to the powertrain by detouring around the second hydraulic pump, wherein the first bypass line and the second bypass line respectively include a check valve and are selectively opened/closed by operation of each check valve.
摘要:
A vane pump may include an oval fixed portion of which an outer circumference may be oval, a rotation ring that may be rotatably disposed outside of the oval fixed portion with a gap and in which blade slots may be formed in a predetermined depth along a circular interior circumference of the rotation ring at a predetermined interval from each other, blades of which one end thereof may be slidably inserted into the blade slots respectively and of which the other end slidably contacts an outer surface of the oval fixed portion, an elastic member coupled to the rotation ring and elastically pushing the blades towards the oval fixed portion, and a drive portion connected to the rotation ring and rotating the rotation ring such that oil may be sucked through an expanding space that may be formed between at least two of the blades and oil may be pumped through a shrinking space that may be formed between at least two of the blades.
摘要:
A video system and a video-signal-format-setting apparatus and method including a video display unit that transmits a predetermined video signal format to a video displaying device, a user input unit that receives from a user an input value for converting the transmitted video signal format, and a format-setting unit that converts the transmitted video signal format according to the input value.