Noise reduction device of high-pressure oil pump in automobile engine

• Main Author: HU ZIFU
• Format: Patent
• Language: Chinese; English
• Published: 01.02.2022
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PHYSICS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; SOUND-PRODUCING DEVICES; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

The noise reduction device of the high-pressure oil pump in the automobile engine comprises a noise reduction cover, a motor is fixedly connected to the center of the top of the noise reduction cover, a cover buckle is fixedly connected to the outer wall of the bottom of the noise reduction cover, a noise reduction base body is fixedly connected to the top of the noise reduction cover, and sound insulation sponge is fixedly connected to the inner wall of the noise reduction base body. A sensor is fixedly connected to the bottom of the induction line; an induction bracket is movably connected to the bottom of the sensor; a supporting frame is fixedly connected to the bottom of the induction bracket; a rotating shaft is fixedly connected to the inner wall of the supporting frame; according to the high-pressure oil pump, by arranging a noise reduction and shock absorption structure for unifying the fixing structure and the outer wall of the high-pressure oil pump, multi-aspect noise reduction can be achieved, im