To provide a valve-type pressure regulator in which a ball is brought in contact with an opening peripheral portion of a small-diameter flow passage so as to stabilize product performance by reliably seating the ball on the opening peripheral portion.
The pressure regulator 1 includes a housing 2 having a small-diameter flow passage 6 with an inflow port 9 and also having a large-diameter flow passage 5 with an outflow port 12. The small-diameter flow passage 6 and the large-diameter flow passage 5 are interconnected in the housing 2. An opening 8 of the small-diameter flow passage 6 is formed in the connection part between the small-diameter flow passage 6 and the large-diameter flow passage 5 so as to face the large-diameter flow passage 5. The ball 3 in contact with the peripheral edge 11 of the opening 8 is disposed in the large-diameter flow passage 5. The ball 3 is pressed against the peripheral edge 11 by a valve spring 4. The inner diameter D1 of the large-diameter flow passage 5 is set such that the center gravity G of the ball 3 is closer to the center of the opening 8 than the peripheral edge 11 with the ball 3 in contact with the inner peripheral wall 5a of the large-diameter flow passage.
| JPS5288825 | BREAKER VALVE FOR LIQUID POWER DEVICE |
IKARUGA TAKAO
ONO TOSHIHIRO
HONMA BUNJI
HAYASAKA ATSUSHI
KIKUCHI MASAHIKO
ARAI TOSHIHIRO
FUKUDA MITSURU
KEIHIN CORP
HONDA MOTOR CO LTD
Next Patent: ROTATION BALANCER OF ENGINE