JPH01171981U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
5 through 5 are partial sectional views showing various embodiments of the communication port shown in FIG. 1, FIG. 6 is a sectional view showing other embodiments of the first valve seat shown in FIG. 1, and FIG. FIG. 1 is a partial cross-sectional view showing the valve closing defect that occurs when the plate body is integrally formed with the shaft; FIG. 8 is a cross-sectional view showing an example of improving the valve closing defect shown in FIG. 7; Figure 9 is a sectional view showing an embodiment in which the plate body shown in Figure 8 is provided on the valve seat shown in Figure 6, and Figure 10 shows the use of the solenoid valve of the present invention for advance and retard control of a distributor. FIG. 11 is a sectional view showing a known electromagnetic valve for controlling a known pressure regulating valve, and FIG. 12 is a diagram illustrating control characteristics of the known pressure regulating valve. 31: Pressure regulating valve, 32: Fuel supply pipe, 33:
3rd working port, 34: engine, 35: intake pipe, 36: throttle valve, 40: 1st working port, 41: 2nd port, 42: 2nd working port, 43: 4th port, 44: Controller, 45:
Solenoid coil, 46: first diaphragm,
50: Spring, 52: First working chamber, 53:
Second diaphragm, 56: Second working chamber, 57
: Lower chamber, 58: Return port, 59: Partition wall, 6
0: Rod, 61: Seal, 62: Check valve, 63: First chamber, 64: First port, 65
: Vacuum tank, 66:1 way valve, 6
7: Third chamber, 68: Third port, 69: Fifth
chamber, 70: fifth port, 71: second chamber, 7
2: Fourth chamber, 73: Movable plate, 74: Shaft, 75: First valve, 76: Second valve, 77:
plate body, 78: third valve, 79: fourth valve, 80:
Spring, 81: Yoke, 82: Open end, 83
: Communication port, 84: Stator, 85: Fourth valve seat, 8
6: Second valve seat, 87: First valve seat, 88: Third valve seat
valve seat, 91: intake pipe, 92: distributor, 93: diaphragm, 94: negative pressure chamber, 95:
Negative pressure chamber, 96: Air filter, 97: Air filter.

Claims (1)

[Claims for Utility Model Registration] (1) A yoke containing a solenoid coil, a stator provided at the center of the yoke, a shaft slidably fitted into the stator, and an end of the shaft. a movable plate provided at the yoke; a spring biasing the movable plate in a direction to separate from the end of the yoke; a first chamber and a second chamber provided on one side of the yoke; A third chamber, a fourth chamber, and a fifth chamber provided on the other side of the yoke, a first port communicating the first chamber with the vacuum tank, and the second chamber. a second port that communicates with the pressure regulating valve; a third port that opens the third chamber to the atmosphere; a fourth port that communicates the fourth chamber with the pressure regulating valve;
a fifth port that communicates the chamber with the intake pipe; a first valve provided on the shaft that opens and closes communication between the first chamber and the second chamber; and a fifth port that connects the second chamber with the third chamber. a second valve provided on the shaft that opens and closes communication with the third chamber and the fourth chamber; a third valve provided on the shaft that opens and closes communication between the third chamber and the fourth chamber; a fourth valve provided on the shaft for opening and closing communication between the fourth chamber and the fifth chamber,
The respective valves are interlocked with the shaft so that the first valve and the third valve are closed, the second valve and the fourth valve are opened, and the first valve and the third valve are closed. An electromagnetically actuated switching valve characterized in that the second valve and the fourth valve are closed while the valve is opened. (2) Each valve is made of an elastically deformable material, and the first
The electromagnetic actuation switching according to claim 1 of the patent registration, characterized in that the stroke for closing the valve and the third valve, and the stroke for closing one of the second valve and the fourth valve are shortened. valve. (3) At least the first valve seat, second valve seat, third valve seat, and fourth valve seat corresponding to the first valve, second valve, third valve, and fourth valve. The electromagnetically actuated switching valve according to claim 1 or 2, wherein one valve seat has a tapered shape. (4) A communication port that communicates the second chamber and the third chamber is provided between the outer periphery of the shaft inserted into the stator and the insertion hole formed in the stator. An electromagnetically actuated switching valve according to claim 1 of the patented utility model. (5) A request for registration of a utility model characterized in that at least one of the valves provided at both ends of the shaft is provided in a cap-shaped body that is loosely fitted to the end of the shaft so as to be able to swing freely. The electromagnetically actuated switching valve according to items 1 to 4. (6) The electromagnetically actuated switching valve according to claim 1, wherein the communication port is provided in the shaft. (7) The electromagnetically actuated switching valve according to claim 1 of the utility model registration, characterized in that the communication port is provided in the stator.