Engine mount for vehicle

An engine mount for a vehicle comprising:

• a main rubber formed on an outer surface of a core bush to be assembled with a vehicle body;
• an outer pipe attached to an outer surface of the main rubber and extending downwards;
• an orifice body, which is provided at a circumference thereof with a main flow path for fluid communication between an upper fluid chamber and a lower fluid chamber and which is provided in a bottom surface thereof with a second passage hole, the orifice body being mounted on an inner surface of the outer pipe;
• a lower plate comprising a second fluid bypass hole formed in an outer peripheral portion thereof and integrally formed at an inner periphery of the orifice body;
• an upper plate, which comprises a first fluid passage hole formed in an outer peripheral portion thereof so as to communicate with the main flow path, a first fluid bypass hole configured to communicate with the second fluid bypass hole, and a fluid introduction hole formed in a center region thereof, the upper plate being coupled to an upper portion of the orifice body;
• a membrane, which comprises a fluid action recess configured to be aligned with the fluid introduction hole and which has a blocking plate configured to open and close the first fluid bypass hole and the second fluid bypass hole, the membrane being disposed in a space between the lower plate and the upper plate so as to be elastically deformed in a radial direction;
• and
• a diaphragm mounted on a lower portion of the orifice body so as to define the lower fluid chamber.