Reservoir for a lubricant pump
View Patent ↗The invention relates to a storage reservoir for receiving grease or a like lubricant for a lubricant pump with a, for example, cylindrical side wall and a cover wall closing off a reservoir interior space at a top of the side wall. A pressure compensation device is disposed such that the reservoir interior space is flow-connected with a reservoir exterior space via an air-permeable but water-impermeable membrane.
1. A storage reservoir for receiving lubricant for a lubricant pump, comprising:
a side wall defining a reservoir interior space;
a cover wall, at an end of said side wall, for closing the reservoir interior space; and
a pressure compensation device having an air permeable but water impermeable membrane for communicating the reservoir interior space with a space exterior of the reservoir interior space,
wherein said pressure compensation device includes a lower part and an upper part having a central plug, with said central plug coaxially penetrating through said lower part such that defined between said central plug and said lower part is an annular escape gap for air and lubricant in the event of overfilling, and with said central plug having thereon a sealing seat for a radial shaft sealing ring.
2. The storage reservoir according to claim 1 , wherein
said membrane is integrated with a machine screw, with said machine screw being capable of being screwed in the proximity of a through channel of said pressure compensation device.
3. The storage reservoir according to claim 2 , wherein
said membrane comprises a textile material onto which polytetrafluoroethylene is applied.
4. The storage reservoir according to claim 1 , wherein
said pressure compensation device further includes an outlet valve which is to open if the reservoir interior space is overfilled with lubricant.
5. The storage reservoir according to claim 4 , wherein
said outlet valve comprises the radial shaft sealing ring, with said radial shaft sealing ring having a soft sealing lip that is to lift from said sealing seat under pressure from within the reservoir interior space, and with said radial shaft sealing ring forming a seal under pressure from exterior of the reservoir interior space.
6. The storage reservoir according to claim 1 , wherein
said membrane comprises a textile material onto which polytetrafluoroethylene is applied.
7. The storage reservoir according to claim 1 , wherein
said pressure compensation device is tightly clamped in an opening of said cover wall.
8. The storage reservoir according to claim 1 , wherein
said pressure compensation device can be tightly clamped in an opening of said cover wall via a sealing ring between said cover wall and said pressure compensation device.
9. The storage reservoir according to claim 1 , wherein
said pressure compensation device further includes a through channel, with said membrane being in said through channel, and
as viewed from the reservoir interior space, in front of said membrane is disposed an overpressure valve that is to close under overpressure obtained in the reservoir interior space.
10. The storage reservoir according to claim 1 , wherein
said upper part is centered on said lower part via a circumferential edge.
11. A storage reservoir for receiving lubricant for a lubricant pump, comprising:
a side wall defining a reservoir interior space;
a cover wall, at an end of said side wall, for closing the reservoir interior space; and
a pressure compensation device having an air permeable but water impermeable membrane for communicating the reservoir interior space with a space exterior of the reservoir interior space,
wherein said pressure compensation device includes an outlet valve which is to open if the reservoir interior space is overfilled with lubricant, and
wherein said outlet valve comprises a radial shaft sealing ring, with said radial shaft sealing ring having a soft sealing lip that is to lift from a sealing seat under pressure from within the reservoir interior space, and with said radial shaft sealing ring forming a seal under pressure from exterior of the reservoir interior space.
12. The storage reservoir according to claim 11 , wherein
said membrane is integrated with a machine screw, with said machine screw being capable of being screwed in the proximity of a through channel of said pressure compensation device.
13. The storage reservoir according to claim 11 , wherein
said membrane comprises a textile material onto which polytetrafluoroethylene is applied.
14. The storage reservoir according to claim 11 , wherein
said pressure compensation device is tightly clamped in an opening of said cover wall.
15. A storage reservoir for receiving lubricant for a lubricant pump, comprising:
a side wall defining an interior reservoir space;
a cover wall, at an end of said side wall, for closing the reservoir interior space; and
a pressure compensation device having an air permeable but water impermeable membrane for communicating the reservoir interior space with a space exterior of the reservoir interior space,
wherein said pressure compensation device includes a through channel, with said membrane being in said through channel, and
wherein, as viewed from the reservoir interior space, in front of said membrane is disposed an overpressure valve that is to close under overpressure obtained in the reservoir interior space.
16. The storage reservoir according to claim 15 , wherein
said membrane is integrated with a machine screw, with said machine screw being capable of being screwed in the proximity of said through channel.
17. The storage reservoir according to claim 15 , wherein
said membrane comprises a textile material onto which polytetrafluoroethylene is applied.
18. The storage reservoir according to claim 15 , wherein
said pressure compensation device further includes an outlet valve which is to open if the reservoir interior space is overfilled with lubricant.
19. The storage reservoir according to claim 15 , wherein
said pressure compensation device is tightly clamped in an opening of said cover wall.