Back to results
US 11,187,191 B2Granted
Charge forming device with tamper resistant adjustable valve
AssigneeWalbro Corporation
InventorsMatthew A. Braun, Eric L. King
Life of this patent
Estimating the term…
Abstract
A carburetor with a body with a cavity in which an adjustable fuel valve is received. To inhibit access to and manual adjustment of the valve, a cover may overlay at least a portion of the adjustable valve. In some forms, a releasable lock plate may be received between the cover and the adjustable valve. Specialty tools may release the lock plate and adjust the valve.
Claims12
A carburetor, comprising:
- a body having a needle valve passage, a cavity open to the needle valve passage and defined by at least one wall of the body, and a passage that intersects the cavity and extends into at least one wall of the cavity;
- an adjustable valve received in the cavity, the adjustable valve having a head received in the cavity and the adjustable valve having a shank having an axis and the shank being at least partly received in the needle valve passage;
- and
- a pin secured to the body and received in the passage that intersects the cavity, an axis of the pin is radially spaced from the adjustable valve, and the pin is a) axially arranged within a radial gap between the head and the body, or b) the pin is axially arranged between an outer end of the head and an open end of the cavity, to inhibit access to the head of the adjustable valve, wherein the terms axial and radial are relative to the axis of the shank.
1 more element
Dependencies are inferred from the claim text.