Closing system for a magneto-rheological damper

For use with a magneto-rheological (MR) damper wherein MR fluid in the damper comprises a carrier fluid portion and micro-particles in suspension in the carrier fluid, a closing system comprising:

• a) a body having an outer diameter, an O-ring gland in the outer diameter, a receptacle, a channel, and a lip;
• b) an O-ring seal adapted to connect with the O-ring gland;
• c) a retaining ring adapted to connect with the body and with an inner diameter of a housing of the damper, the housing having a fluid reservoir adapted to contain MR fluid;
• d) a first piston rod seal adapted to connect with the receptacle of the body;
• e) a piston rod guide having an outer diameter adapted to connect with the receptacle, and having an inner diameter shaped to slidably couple with a piston rod of the damper, the inner diameter further including a PTFE coating;
• f) a seal assembly including:
• i) a seal retainer the seal retainer having an outer diameter adapted to connect with the lip of the body to form a lubrication chamber, an inner diameter, and a cavity located coaxial to the inner diameter, wherein the seal retainer allows MR carrier fluid from the fluid reservoir to replenish the lubrication chamber while restraining MR micro-particles,
• ii) a second piston rod seal located in the cavity, and
• iii) a seal cover placed over the second piston rod seal, the seal cover being adapted to connect with the seal retainer and captively hold the second piston rod seal, and
• g) a lubrication passage delimited by the body and the seal assembly, the lubrication passage communicating lubricant from the lubrication chamber to the inner diameter of the piston rod guide.

For use with a magneto-rheological (MR) damper wherein MR fluid in the damper comprises a carrier fluid portion and micro-particles in suspension in the carrier fluid, a closing system comprising:

• a) a body having an outer diameter, an O-ring gland in the outer diameter, a receptacle, a channel, and a lip;
• b) an O-ring seal adapted to connect with the O-ring gland;
• c) a retaining ring adapted to connect with the body and with an inner diameter of a housing of the damper, the housing having a fluid reservoir adapted to contain MR fluid;
• d) a first piston rod seal adapted to connect with the receptacle of the body, the first piston rod seal being made of an elastomeric material;
• e) a piston rod guide having an outer diameter adapted to connect with the receptacle, and having an inner diameter shaped to slidably couple with a piston rod of the damper, the inner diameter further including a PTFE coating;
• f) a seal assembly including:
• i) a seal retainer having an outer diameter adapted to connect with the lip of the body to form a lubrication chamber, an inner diameter, and a cavity located coaxial to the inner diameter, wherein the seal retainer allows MR carrier fluid from the fluid reservoir to replenish the lubrication chamber while restraining MR micro-particles,
• ii) a second piston rod seal located in the cavity, the second piston rod seal being made of an elastomeric material, and
• iii) a seal cover placed over the second piston rod seal, the seal cover being adapted to connect with the seal retainer and captively hold the second piston rod seal, and
• g) a lubrication passage delimited by the body and the seal assembly, the lubrication passage communicating lubricant from the lubrication chamber to the inner diameter of the piston rod guide.

For use with a magneto-rheological (MR) damper wherein MR fluid in the damper comprises a carrier fluid portion and micro-particles in suspension in the carrier fluid, a closing system comprising:

• a) a body adapted to couple to a housing of the damper, the housing having a fluid reservoir adapted to contain MR fluid;
• b) a seal assembly including:
• i) a piston rod seal, and
• ii) a seal retainer-adapted to connect with the body to form a lubrication chamber, wherein the seal retainer allows MR carrier fluid from the fluid reservoir to replenish the lubrication chamber while restraining MR micro-particles, and
• c) a lubrication passage delimited by the body and the seal assembly, the lubrication passage communicating lubricant from the lubrication chamber to a piston rod of the damper.