Mechanical seal having a double-tier mating ring
First Claim
1. A mechanical seal comprising a rotating ring and a mating ring adapted to seal to one another, wherein:
- (a) said mating ring comprises a first stationary ring comprising a circumferential groove-channel, a seal face, and an outer and inner surface each having a plurality of symmetrically-spaced radial holes adapted respectively to form inlet and outlet ports, and a second stationary ring comprising a circumferential diverter;
(b) said circumferential groove-channel is adapted to receive said circumferential diverter so that, when combined, said first and said second stationary rings form said mating ring having a circumferential, divergent flow-channel communicating with said inlet and said outlet ports; and
(c) if a coolant is supplied to said divergent flow-channel through said inlet ports, said divergent flow-channel causes the coolant to flow to substantially all portions of the interior surface area of said seal face before exiting through said outlet ports;
whereby heat transfer at the interface of said rotating ring and said mating ring is substantially greater than what would be the heat transfer between otherwise identical sealing members lacking said divergent flow-channel.
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Accused Products
Abstract
An apparatus and method to enhance the overall performance of mechanical seals in one of the following ways: by reducing seal face wear, by reducing the contact surface temperature, or by increasing the life span of mechanical seals. The apparatus is a mechanical seal (e.g., single mechanical seals, double mechanical seals, tandem mechanical seals, bellows, pusher mechanical seals, and all types of rotating and reciprocating machines) comprising a rotating ring and a double-tier mating ring. In a preferred embodiment, the double-tier mating ring comprises a first and a second stationary ring that together form an agitation-inducing, guided flow channel to allow for the removal of heat generated at the seal face of the mating ring by channeling a coolant entering the mating ring to a position adjacent to and in close proximity with the interior surface area of the seal face of the mating ring.
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Citations
9 Claims
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1. A mechanical seal comprising a rotating ring and a mating ring adapted to seal to one another, wherein:
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(a) said mating ring comprises a first stationary ring comprising a circumferential groove-channel, a seal face, and an outer and inner surface each having a plurality of symmetrically-spaced radial holes adapted respectively to form inlet and outlet ports, and a second stationary ring comprising a circumferential diverter; (b) said circumferential groove-channel is adapted to receive said circumferential diverter so that, when combined, said first and said second stationary rings form said mating ring having a circumferential, divergent flow-channel communicating with said inlet and said outlet ports; and (c) if a coolant is supplied to said divergent flow-channel through said inlet ports, said divergent flow-channel causes the coolant to flow to substantially all portions of the interior surface area of said seal face before exiting through said outlet ports; whereby heat transfer at the interface of said rotating ring and said mating ring is substantially greater than what would be the heat transfer between otherwise identical sealing members lacking said divergent flow-channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification