Engine pulley testing device

• US 8,671,744 B1
• Filed: 10/10/2012
• Issued: 03/18/2014
• Est. Priority Date: 08/20/2009
• Status: Active Grant

• Current Assignee: Lawrence Andrew Laricchiuta
• Original Assignee: Lawrence Andrew Laricchiuta
• Inventors: Laricchiuta, Lawrence Andrew
• Primary Examiner(s): Kirkland, III, Freddie
• Application Number:
  US13/648,788
• Time in Patent Office: 524 Days
• Field of Search: 731/147.7
• US Class Current: 73/114.77
• CPC Class Codes: G01M 13/00 Testing of machine parts

Abstract

The present invention features an engine pulley testing device allowing a user to detect a damaged engine pulley. The engine pulley testing device comprises a first support arm and a second support arm pivotably attached to a front side of a top panel, a third support arm pivotably attached to a top panel on a back side of the top panel. A top pulley is attached on the top panel and a first bottom pulley and second bottom pulley are attached to the first and second support arms respectively. An engine belt can be wrapped around the pulleys and a testing pulley for testing. The engine pulley testing device may be attached on a sliding rail to slide to a desired working position.

Claims

1. An engine pulley testing system (100) for testing a test pulley in an engine, said engine pulley testing system comprising:

(i) an engine pulley testing device (200), wherein the device (200) comprises;

(a) a top panel (240) having a front side (242) and a back side (244);

(b) a first support arm (210), a second support arm (220) and a third support arm (230) pivotally attached to the top panel (240), wherein the first support arm and the second support arm (220) are attached on the front side (242) via a first pivot point (219) and a second pivot point (229) respectively, wherein a first length of the first support arm (210), a second length of the second support arm (220) and a third length of the third support arm (230) are all adjustable;

wherein the first support arm (210) is lockable with a first arm lock means (218) to secure a first support arm pivot angle, wherein the second support arm (220) is lockable with a second arm lock means (228) to secure a second support arm pivot angle, wherein the third support arm (230) is lockable with a third arm lock means (238) to secure a first support arm pivot angle;

(c) a top pulley (330) disposed on front side (242) of the top panel (240), a first bottom pulley (310) rotatably attached to the first support arm (210), and a second bottom pulley (320) rotatably attached to the second support arm (220), wherein the top pulley (320), the first bottom pulley (310) and the second bottom pulley (320) are on a same plane (249);

wherein an engine belt (260) is wrapped around the top pulley (330), a test pulley (340) being tested in an engine and at least one of the first bottom pulley 510 and the second bottom pulley (320) during a pulley test, wherein the top pulley (330) and the test pulley (340) are on the same plane (249).

2. The system of claim 1, wherein the first support arm (210) comprises a first inner post (214) telescopically received in a first outer post (212), wherein the first inner post (214) can be locked in the first outer post (212) via a first post locking mechanism (217).

3. The system of claim 1, wherein the second support arm (220) comprises a second inner post (224) telescopically received in a second outer post (222), wherein the second inner post (224) can be locked in the second outer post (222) via a second post locking mechanism (227).

4. The system of claim 1, wherein the third support arm (230) comprises a third inner post (234) telescopically received in a third outer post (232), wherein the third inner post (234) can be locked in the third outer post (232) via a third post locking mechanism (237).

5. The system of claim 1, wherein the first arm lock means (218) is a bolt, wherein the second arm lock means (228) is a bolt, wherein the third arm lock means (238) is a bolt.

6. The system of claim 1, wherein a gripping component (250) is disposed on a bottom end of the first support arm (210), a bottom end of the second support arm (220) and a bottom end of the third support arm (230).

7. The system of claim 1, the third support arm (230) are attached on the back side (244), wherein the third support arm (230) is pivotally attached to the top panel (240) through a connection pole (239) such that bottom ends of the first support arm (210), the second support arm (220) and the third support arm (230) forms a stable tripod-style supporting structure.

8. The system of claim 1, wherein the top pulley (330) further comprises a adapter plate (332) fixably and coaxially attached to the top pulley (330), wherein the adaptor (332) has a receiver (334) disposed on the center of the plate (332) to operatively engage an external rotating source for driving the top pulley (330).

9. The system of claim 8, wherein the receiver (334) is a hex dent, socket dent or torx dent.

10. The system of claim 8, wherein the external rotating source is a power drill, cordless drill, or pneumatic drill.

11. The system of claim 1, wherein a stud (270) is disposed on either the first support arm (110) or the second support arm (220), wherein the stud (270) functions to engage a mechanic'"'"'s stethoscope (272).

12. The system of claim 1, wherein the top panel (240) have a first arc shaped slot (246) and a second arc shaped slot (248), wherein the first arc shaped slot (246) is functioned to limited pivot range of the first support arm (210), wherein the second arc shaped slot (248) is functioned to limited pivot range of the second support arm (220).

13. The system of claim 1, wherein the first support arm (210) is lockable to a first pivot angle with a first pivot lock means (218), wherein the second support arm (220) is lockable to a second pivot angle with a second pivot lock means (228), wherein the third support arm (230) is lockable to a third pivot angle with a third pivot lock means (238).

14. The system of claim 1, wherein the system further comprises a support platform (400), wherein the support platform (400) comprises a linear support rail (402) with a first rail end (403) and a second rail end (404), wherein a first support leg (410) is disposed on the first rail end and a second support leg (420) is disposed on the second rail end (404), wherein the first support leg (410) and the second support leg (420) have adjustable heights, wherein the third support arm (230) of the engine pulley testing device (200) is slidably attached to the support rail (402) between the first rail end (403) and the second rail end (404) through a rail connector (440).

15. The system of claim 12, wherein the third support arm (230) of the engine pulley testing device (200) is attached to the support rail (402) such that the plan of the top pulley (320), the first bottom pulley (310) and the second bottom pulley (320) is parallel or perpendicular to the rail (402).