Structure and method for reducing air-following oil drain quantity of automobile air compressor

Structure and method for reducing air-following oil drain quantity of automobile air compressor

  • CN 101,482,106 B
  • Filed: 01/22/2009
  • Issued: 11/28/2012
  • Est. Priority Date: 01/22/2009
  • Status: Active Grant
First Claim
Patent Images

1. method that reduces air-following oil drain quantity of automobile air compressor, this method comprise pack into the installation step of technological process of cylinder body of improvement and piston ring, the piston of air compressor cylinder, piston ring and piston;

  • The skirt section that it is characterized in that said piston is skirt section oval (6) and tapering is arranged that piston is provided with skirt section groove (7), draining hole (8);

    Top compression ring in the piston ring and the oil ring crack of remaining silent in cylinder body is controlled at 0.08~

    0.15mm;

    The cylinder prepareding gap of piston and cylinder body is 0.02~

    0.06mm;

    Height that said skirt section is oval and ovality are to set with becoming ovality 0.25~

    0.40 ±

    0.01 by height H=5~

    35mm, and in height H=35~

    36.5mm position of piston skirt, ovality is 0.4;

    In the height H=5mm position of skirt section ellipse, ovality is 0.25;

    And the tapered configuration of piston skirt is;

    height H is the tapering microcephaly at 35mm place, i.e. piston skirt upper end, and diameter is 90mm-0.16, height H is the piston major part at 5mm place, i.e. lower end, piston skirt, diameter is 90mm-0.06;

    The oval height in piston skirt is smooth line machine shaping with ovality.

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