Abstract: An air pulser includes a housing. The interior of the housing is divided into an air supply chamber and an exhaust chamber by a diaphragm formed with an aperture. An air injection tube is provided in the air supply chamber and configured to be selectively opened and closed by the diaphragm. The exhaust chamber is divided into first and second chambers by a valve plate formed with a valve hole. In the second chamber, a guide tube is fixedly mounted in which a valve body is slidably supported. The valve body carries a permanent magnet adapted to be attracted to the valve plate and carrying a suction disk. A seal member is disposed between the guide tube and the valve plate. A plurality of radial grooves having a V-shaped cross-section are formed on the surface of the valve plate facing the suction plate at its radially inner portion.

Abstract: An air pulser includes a housing. The interior of the housing is divided into an air supply chamber and an exhaust chamber by a diaphragm formed with an aperture. An air injection tube is provided in the air supply chamber and configured to be selectively opened and closed by the diaphragm. The exhaust chamber is divided into first and second chambers by a valve plate formed with a valve hole. In the second chamber, a guide tube is fixedly mounted in which a valve body is slidably supported. The valve body carries a permanent magnet adapted to be attracted to the valve plate and carrying a suction disk. A seal member is disposed between the guide tube and the valve plate. A plurality of radial grooves having a V-shaped cross-section are formed on the surface of the valve plate facing the suction plate at its radially inner portion.

Abstract: An air pulser is provided which can intermittently form pulse air by continuously supplying compressed air. The interior of the body is partitioned into an air supply chamber and an air exhaust chamber by a diaphragm. An air blast cylinder opened and closed by the diaphragm is provided in the air supply chamber. In the air exhaust chamber, a valve plate having a valve hole and comprising a magnetic member is provided to partition it into a first chamber and a second chamber. A valve body with a permanent magnet is movably mounted in the second chamber. Compressed air can be continuously fed into the air supply chamber to open the valve body due to an increase in pressure in the first chamber, thereby exhausting compressed air in the air exhaust chamber through an air exhaust port, and to deform the diaphragm toward the air exhaust chamber due to a drop in pressure in the air exhaust chamber, thereby discharging compressed air in the air supply chamber through the air blast cylinder.

Abstract: An air pulser is provided which can intermittently form pulse air by continuously supplying compressed air. The interior of the body is partitioned into an air supply chamber and an air exhaust chamber by a diaphragm. An air blast cylinder opened and closed by the diaphragm is provided in the air supply chamber. In the air exhaust chamber, a valve plate having a valve hole and comprising a magnetic member is provided to partition it into a first chamber and a second chamber. A valve body with a permanent magnet is movably mounted in the second chamber. By continuously feeding compressed air into the air supply chamber to open the valve body due to an increase in pressure in the first chamber, thereby exhausting compressed air in the air exhaust chamber through an air exhaust port, and to deform the diaphragm toward the air exhaust chamber due to a drop in pressure in the air exhaust chamber, thereby discharging compressed air in the air supply chamber through the air blast cylinder.