US 2026/0216910 A1Published application

Handheld power tool

AssigneeHusqvarna AB

InventorsCarl RUDENSTAM, Joakim SAMEFORS, Kevin SUNDIN

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Abstract

A handheld power tool (40) is disclosed comprising a power source (38) configured to power a tool (30) of the handheld power tool (40) and a lubrication pump (1). The lubrication pump (1) comprises a pump chamber unit (4) comprising a pump chamber (4′) with an inlet (11) connected to the lubricant tank (2) and an outlet (12) connected to the lubrication portion (3), a pump member (5′) arranged inside the pump chamber unit (4), and an electric motor unit (6) configured to rotate the pump member (5′) relative to the pump chamber unit (4) such that the pump member (5′) pumps lubricant from the inlet (11) to the outlet (12). The handheld power tool (40) further comprises a sensor assembly (7) configured to provide data indicative of the rotational position of the pump member (5′) relative to the pump chamber unit (4).

Claims18

Dependent claims

A handheld power tool comprising a power source configured to power a tool of the handheld power tool and a lubrication system, wherein the lubrication system comprises a lubricant tank and lubrication pump configured to pump lubricant from the lubricant tank to a lubrication portion to lubricate the tool, and wherein the lubrication pump comprises:

a pump chamber unit comprising a pump chamber with an inlet connected to the lubricant tank and an outlet connected to the lubrication portion,
a pump member arranged inside the pump chamber unit, and
an electric motor unit configured to rotate the pump member relative to the pump chamber unit such that the pump member pumps lubricant from the inlet to the outlet,
and wherein the handheld power tool further comprises a sensor assembly configured to provide data indicative of the rotational position of the pump member relative to the pump chamber unit

1 more element

Dependencies are inferred from the claim text.