Patent ID: 9068533
Filing Date: 2015-06-30
Classification: F02B,F02D,F02M

Abstract:
1. A portable handheld work apparatus comprising: a work tool; a combustion engine for driving said work tool; said combustion engine including a carburetor for supplying an air/fuel mixture; said carburetor including a throttle element and a choke element accommodated therein; said choke element having a choke shaft defining a first pivot axis; said choke element being mounted in said carburetor with said choke shaft so as to be pivotable about said first pivot axis; said choke element including an actuating element operatively connected to said choke shaft; a throttle lever; an operating-mode selector mounted in said apparatus so as to be pivotable about a second pivot axis to an operating position, a warm-start position and a cold-start position; an adjusting element connected to said operating-mode selector so as to be fixedly rotatable therewith and coact with said actuating element in said warm-start position and said cold-start position; said adjusting element having a first contact location corresponding to said warm-start position and a second contact location corresponding to said cold-start position; said actuating element having a first contact location corresponding to said warm-start position and a second contact location corresponding to said cold-start position; said choke element being displaced in a closing direction in response to a shift of said operating-mode selector from said warm-start position whereat said first contact location of said adjusting element coacts with said first contact location of said actuating element into said cold-start position whereat said second contact location of said adjusting element coacts with said second contact location of said actuating element; said actuating element being pivoted through a first pivot angle (α wherein a ratio of said second pivot angle (α