Piston for brake valve of car

Piston for brake valve of car

  • CN 1,172,097 C
  • Filed: 07/19/2001
  • Issued: 10/20/2004
  • Est. Priority Date: 07/19/2001
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of piston for brake valve of car, it is characterized in that:

  • comprise overcoat, piston, tip-lever support, elasticity, piston is positioned at overcoat and is slidingly matched with it, one end of piston has a columniform thin neck, the through hole that coaxial different-diameter is arranged in piston, the Kongzui of narrow neck end is thin, is the top of elasticity and tip-lever support successively in thicker hole, has flange to be stuck in the hole of pistons end in the other end outside of this tip-lever support;

    Sealed groove and displacement groove along circumference are arranged outside piston, seal ring is arranged in sealed groove;

    Inboard at described overcoat is fluted along circumference, and jump ring is arranged within it, and the interior edge of this jump ring is positioned at the displacement groove of piston, also has along the groove of circumference and interior seal ring thereof in the outside of overcoat, and the external diameter of this overcoat matches with the internal diameter of brake valve valve body.

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