EJECTOR

• Main Author: IKEDA JUNICHI
• Format: Patent
• Language: English
• Published: 24.02.2005
• Edition: 7
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BLASTING; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BYUSING INERTIA OF FLUID TO BE PUMPED; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SIPHONS; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide an ejector, heightening the efficiency, and increasing the achieved negative pressure and suction flow rate to the operating negative pressure. SOLUTION: This ejector includes: a nozzle 60 having an inlet end and an outlet end; a diffuser having an inlet end and an outlet end; and an ejector body integrated with a suction passage forming a suction port between the outlet end of the nozzle 60 and the inlet end of the diffuser. The nozzle and the diffuser form a passage having an oblong section, and the narrowest part of the nozzle 60 forms a throat 90. The diffuser has an expanded part expanding at an expansion angle θ ranging from 5 to 10 degrees (the angle θ' to the center line of the diffuser ranges from 2.5 to 5 degrees). The sectional area of the throat ranges from 1.5 to 4.0 mm2, and the outlet end of the nozzle 60 is extended from the throat 90 to a distance under 1.0 mm. COPYRIGHT: (C)2005,JPO&NCIPI