Patent application number | Description | Published |
20110037232 | MECHANICAL SEAL DEVICE - The present invention provides a mechanical seal device, capable of sealing special fluid such as chemicals, easy to be mounted to a device and small in size. The mechanical seal device comprises a seal cover, a first seal ring axially-movably arranged in an inner circumference side of the seal cover, a second seal ring fixed to a rotary shaft, a spring arranged in the inner circumference side of the seal cover and pressing the first seal ring in a direction toward the second seal ring and a bellows mounted to the inner circumference side of the seal cover and axially-expandably mounted between the seal cover and the first seal ring. The spring is mounted to the seal cover along the axial direction in which the bellows is expanded and contracted. | 02-17-2011 |
20110101617 | Double Mechanical Seal Device - The present invention provides a cartridge type double seal having a size small enough to be mounted on the outer surface of an apparatus without using a space in a stuffing box and without requiring any special design and modification. In a seal device ( | 05-05-2011 |
20120001394 | Mechanical Seal Device - Provided is a mechanical sealing device which is simply configured and wherein a rotation ring can be stably held in a specified axial position, and warping of the sealed surfaces can be prevented, thereby making it possible to obtain appropriate sealing characteristics. In a mechanical sealing device, a rotation ring is axially held between a rotation ring locking surface of a sleeve and a rotation ring locking surface of a collar. Furthermore, the sleeve, the rotation ring fixing collar, and the rotation ring are integrated together by means of a baffle knock pin for the rotation ring. Due to the above, whether positive pressure or negative pressure is applied, the rotation ring does not move, nor do the sealed surfaces of the rotation ring become warped. Moreover, assembly can be simply performed only by means of the knock pin. | 01-05-2012 |
20120139186 | Mechanical Seal Device - Provided is a small mechanical seal device which can efficiently wash a sealing surface, and can appropriately seal a sealed fluid and a quenching liquid. In a mechanical seal device ( | 06-07-2012 |
20120187636 | Mechanical Seal Device - In order to provide a mechanical seal device, which is suitably used even under a condition that fluid pressure is frequently switched between a positive pressure and a counter pressure, a mechanical seal device comprising; a rotary ring | 07-26-2012 |
20120248705 | MECHANICAL SEAL DEVICE - The object of the present invention is to provide a divisional type mechanical seal of outside type which joins the seal face in flat and strongly even in a seal ring having a different thickness in the radial direction, and to exhibit an appropriate sealing ability. In the mechanical seal device of the present invention, the circumference grooves | 10-04-2012 |
20150159759 | DOUBLE MECHANICAL SEAL DEVICE - A double mechanical seal device, comprising a rotating ring, a first static ring, a second static ring, and a seal cover. A first bellows seal device is provided between the first static ring and the seal cover, and the first bellows seal device comprises a first bellows part capable of expanding and contracting in an axial direction, a first cover-side adapter, and a first static ring-side adapter. The first bellows seal device and the first static ring are disposed so that in a state where there is no pressure difference between the inside and outside of the first bellows part, a balance line of the first bellows part passes through a cross section of an O ring and a first static seal surface. | 06-11-2015 |
20160003362 | MECHANICAL SEAL DEVICE - A mechanical seal device includes a rotary ring | 01-07-2016 |