Patent ID: 9464606
Filing Date: 2016-10-11
CPC Classification: F02M,F16L

Claim Text:
1. A handheld work apparatus comprising: at least one work tool; a combustion engine configured to drive said work tool; an air filter; an intake channel; said combustion engine being further configured to via said air filter draw in combustion air through said intake channel in a flow direction; an elastic connecting piece forming a portion of said intake channel and having a first section, a second section and an expansion fold arranged between said first section and said second section; said expansion fold having a first side wall and a second side wall and being configured to enable relative movements of said first and said second sections with respect to each other; said first side wall being arranged in said intake channel upstream of said second side wall with respect to said flow direction; said expansion fold defining a greatest outer diameter (a); said expansion fold further having a peripheral wall arranged between said first and said second side wall and interconnecting said first and said second side wall in said flow direction; said peripheral wall extending in a region in which said expansion fold has said greatest outer diameter (a); said first side wall having a segment adjoining said peripheral wall; a stop configured for said expansion fold to prevent said segment of said first side wall from bearing against said second side wall; said expansion fold being configured to enclose a residual volume at said peripheral wall in every position of said first section relative to said second section; said expansion fold being configured to enclose a first volume when said connecting piece is not under load; and, said residual volume being at least 50% of said first volume.