Method for forming a control for operation of a portable engine powered device

Patent metadata

Field	Value
Publication number	US-9771882-B2
Application number	US-201615278537-A
Country	US
Kind code	B2
Filing date	Sep 28, 2016
Priority date	Feb 20, 2014
Publication date	Sep 26, 2017
Grant date	Sep 26, 2017

Abstract

A single control for manipulating a fuel valve, a choke condition, and an ignition system condition of an engine of a portable engine powered device that simplifies starting, stopping, and operation of the engine associated with use of the device. The control includes a dial that can be rotated to positions between a first radial position and a second radial position. When the dial is in the first radial position, the fuel valve is maintained in a closed position and the ignition system is grounded such that the engine is rendered inoperable. Rotation of the dial away from the first radial position completes the ignition circuit, opens the fuel valve, and initiates a choke position suitable for subsequent starting and self-sustained operation of the engine. The dial is also axially displaceable to activate an electronic starter for engines so equipped.

First claim

What we claim is:

1. A method of forming a control for operation of a portable engine powered device, the method comprising:
providing a single user input that is rotatable from a first radial position associated with grounding an engine ignition circuit, a closed orientation of a fuel valve, and an open choke condition toward a second radial position associated with closing the engine ignition circuit, opening of the fuel valve, and a closed choke condition for subsequent cold starting of an internal combustion engine;
providing a slidable connection between a first body of the single user input and a several body of the single user input;
connecting a choke cable to the first body; and
engaging the second body with the fuel valve.

2. The method of claim 1 further comprising providing a fully open fuel valve condition when the single user input is at least one of between the first radial position and the second radial position or achieves the second radial position.

3. The method of claim 1 further comprising providing a rotational interface between the first body and the second body, the rotational interface having a first portion wherein rotation of the first body rotates the second body and a second portion wherein the first body rotates relative to the second body.

4. The method of claim 3 wherein the second portion of the rotational interface flanks the first portion of the rotational interface.

5. The method of claim 1 further comprising orienting a switch associated with grounding the engine ignition circuit in operative association with a tab formed by the first body.

6. The method of claim 1 further comprising fluidly connecting a fossil fuel source to the fuel valve.

7. The method of claim 6 wherein the fossil fuel source is further defined as a liquid propane tank.

8. A method of forming a control for operation of a portable engine powered device, the method comprising:
providing a single user input that is rotatable from a first radial position associated with grounding an engine ignition circuit, a closed orientation of a fuel valve, and an open choke condition toward a second radial position, associated with closing the engine ignition circuit, opening of the fuel valve, and a closed choke condition for subsequent cold starting of an internal combustion engine;
providing a slidable connection between a first body of the single user input and a second body of the single user input; and
orienting a switch, associated with operation of a starter for electronic starting of the internal combustion engine, to interact with the first body when the first body is axially displaced relative to the second body.

9. The method of claim 8 further comprising constructing the first body to interact with the switch when the first body is rotated to positions away from the first radial position.

Assignees

• Generac Power Systems Inc

Inventors

• Repasky Michael
• Saari Russell
• Schneider Glen
• Castaldo Gary
• Caldwell Jennifer

Classifications

• F02D33/006 Primary

  depending on engine operating conditions, e.g. start, stop or ambient conditions · CPC title

• F02N11/0803

  characterised by means for initiating engine start or stop (F02N11/0814 takes precedence) · CPC title

• F02B63/044

  the engine-generator unit being placed on a frame or in an housing · CPC title

• F02D33/003 Primary

  Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus (control of electrical fuel pumps F02D41/3082, controlling fuel flow to a common rail F02D41/3845); Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge · CPC title

• F02B63/02

  for hand-held tools · CPC title