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US 10,240,568 B2Granted
Manually actuatable feed pump and fuel system with a feed pump
AssigneeAndreas Stihl AG & Co. KG
InventorsMichael Dietenberger, Ulf Bannick, Isgard Sabelberg, Tobias Deigendesch
Life of this patent
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Abstract
A manually actuated feed pump is provided with a primer bulb to be manually actuated by an operator. The primer bulb has a pump chamber. A travel-controlled valve connects the pump chamber to a fuel line. The travel-controlled valve has a valve member that is moved by an actuation travel of the primer bulb into an open position that opens the travel-controlled valve. A first spring is operatively connected to the valve member and to the primer bulb. The primer bulb acts through the first spring on the valve member.
Claims15
A manually actuated feed pump comprising:
- a primer bulb configured to be manually actuated by an operator, wherein the primer bulb comprises a pump chamber;
- a travel-controlled valve connecting the pump chamber to a fuel line;
- wherein the travel-controlled valve comprises a valve member, wherein the valve member is moved by an actuation travel of the primer bulb into an open position that opens the travel-controlled valve;
- a first spring operatively connected to the valve member and to the primer bulb, wherein the primer bulb acts through the first spring on the valve member.
1 more element
Dependencies are inferred from the claim text.