Damping force generation mechanism and pressure shock absorber
AssigneeHitachi Astemo, Ltd.
InventorGota Nakano
Life of this patent
Estimating the term…
Abstract
A damping force generation mechanism with a flow path inside thereof, through which a fluid flows, includes: a valve body part including an elastically deformable elastic part and a pressure receiving part receiving pressure of the fluid; a valve seat part provided around a flow path port of the flow path, with which the pressure receiving part is able to make contact; and a support part provided in a constituent part constituting at least a part of a back pressure chamber applying a back pressure toward the valve seat part to the valve body part, the support part supporting an outer edge portion of the elastic part.
Claims17
A damping force generation mechanism with a flow path inside thereof, through which a fluid flows, the mechanism comprising:
- a valve body part including an elastic part that is elastically deformable and a pressure receiving part that receives pressure of the fluid;
- a valve seat part provided around a flow path port of the flow path, with which the pressure receiving part is able to make contact;
- a first containing part constituting at least a part of a back pressure chamber applying a back pressure toward the valve seat part against the valve body part, the first containing part supporting an outer edge portion of the elastic part;
- a contact part provided outside the valve seat part, the contact part being able to make contact with the elastic part of the valve body part;
- and
- a concave part provided outside the contact part, the concave part making the outer edge portion of the elastic part displaceable away from the back pressure chamber.
A pressure shock absorber comprising:
- a cylinder containing fluid;
- a piston part connected to a rod that moves in an axial direction, and moving inside the cylinder;
- a flow path forming part forming, with movement of the piston part, a flow path through which the fluid flows;
- a valve body part including an elastic part that is elastically deformable and a pressure receiving part that receives pressure of the fluid;
- a valve seat part provided around a flow path port of the flow path, with which the pressure receiving part is able to make contact;
- a first containing part constituting at least a part of a back pressure chamber applying a back pressure toward the valve seat part against the valve body part, the first containing part supporting an outer edge portion of the elastic part;
- a contact part provided outside the valve seat part, the contact part being able to make contact with the elastic part of the valve body part;
- and
- a concave part provided outside the contact part, the concave part making the outer edge portion of the elastic part displaceable away from the back pressure chamber.
Dependencies are inferred from the claim text.