Engine incorporating improved governor linkage

Patent metadata

Field	Value
Publication number	US-11808233-B2
Application number	US-202217848072-A
Country	US
Kind code	B2
Filing date	Jun 23, 2022
Priority date	Jul 7, 2021
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

Abstract

An engine having a linkage assembly, the linkage assembly having a governor lever, a governor shaft, and a throttle link. The governor lever couples the governor shaft to the throttle link. The governor lever is configured to adjust the relative position between the throttle link and the governor shaft. The governor lever has a primary arm and a secondary arm, the primary arm being movable with respect to the secondary arm. The primary arm and secondary arm are secured via a fastener which prevents relative motion between the primary and secondary arms.

First claim

What is claimed is:

1. An engine comprising:
a governor comprising a governor shaft;
a linkage assembly comprising:
a governor lever, the governor lever comprising a primary arm, a secondary arm, and a fastener, the primary arm movably coupled to the secondary arm and the fastener configured to restrain motion between the primary arm and the secondary arm, and one of the primary arm and the secondary arm are coupled to the governor shaft;
a throttle link;

wherein the governor lever is movable from a first position where the governor shaft is in a first orientation relative to the throttle link to a second position where the governor shaft is in a second orientation relative to the throttle link, the primary arm moving relative to the secondary arm as the governor lever is transitioned from the first position to the second position; and
wherein the fastener is coupled to the governor shaft, the fastener preventing rotational motion between the primary arm and the governor shaft.

2. The engine of claim 1 wherein both of the primary arm and the secondary arm are coupled to the governor shaft.

3. The engine of claim 1 wherein the primary arm is coupled to the governor shaft.

4. The engine of claim 1 wherein the fastener secures the primary arm to the secondary arm.

5. The engine of claim 1 wherein the linkage assembly further comprises a pivot member; and wherein the secondary arm rotates with respect to the primary arm about an axis, the axis intersecting the pivot member.

6. The engine of claim 5 wherein the secondary arm is biased in a first rotational direction about the axis.

7. The engine of claim 1 wherein the linkage assembly further comprises a biasing element.

8. The engine of claim 1 further comprising a pivot member, the pivot member biasing the secondary arm in a first rotational direction.

9. The engine of claim 1 wherein the primary arm is non-rotatably coupled to the governor shaft.

10. An engine comprising:
a governor comprising a governor shaft;
a linkage assembly comprising:
a governor lever, the governor lever comprising a primary arm, a secondary arm, and a fastener, the primary arm movably coupled to the secondary arm and the fastener configured to restrain motion between the primary arm and the secondary arm, the primary arm coupled to the governor shaft;
a throttle link;

wherein the governor lever is movable from a first position where the governor shaft is in a first orientation relative to the throttle link to a second position where the governor shaft is in a second orientation relative to the throttle link, the primary arm moving relative to the secondary arm as the governor lever is transitioned from the first position to the second position; and
wherein the secondary arm comprises a slot, the slot allowing movement of the secondary arm with respect to the primary arm; and wherein the governor shaft extends through the slot in the secondary arm.

11. A linkage assembly for an engine, the linkage assembly comprising:
a governor lever, the governor lever comprising a primary arm, a secondary arm, a fastener, and a pivot member, the primary arm movably coupled to the secondary arm during maintenance and the fastener configured to restrain motion between the primary arm and the secondary arm during operation of the engine subsequent to maintenance; and
a throttle link;
wherein the secondary arm is movable from a first position relative to the primary arm to a second position relative to the primary arm during maintenance; and
wherein the secondary arm is configured to rotate relative to the primary arm about the pivot member during maintenance and the fastener is configured to prevent relative motion between the primary arm and the secondary arm during operation of the engine.

12. The linkage assembly of claim 11 wherein the fastener secures the primary arm to the secondary arm.

13. The linkage assembly of claim 11 wherein the secondary arm rotates with respect to the primary arm about an axis, the axis intersecting the pivot member.

14. The linkage assembly of claim 11 wherein the secondary arm is biased in a first rotational direction about the axis.

Assignees

• Kohler Co

Inventors

• Sugden Andrew J

Classifications

• F02D9/1065 Primary

  Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like · CPC title

• F02D9/107

  Manufacturing or mounting details · CPC title

• F02D11/04

  characterised by mechanical control linkages (F02D11/06 takes precedence) · CPC title

• F02D2009/0206

  specially positioned with relation to engine or engine housing · CPC title

• F02D2009/0261

  having a specially shaped transmission member, e.g. a cam, specially toothed gears, with a clutch · CPC title