Connecting rod for an air compressor

Patent metadata

Field	Value
Publication number	US-10001160-B2
Application number	US-201514705360-A
Country	US
Kind code	B2
Filing date	May 6, 2015
Priority date	May 9, 2014
Publication date	Jun 19, 2018
Grant date	Jun 19, 2018

Abstract

A connecting rod for an air compressor includes a rod member, a wrist pin receiving end connected to a first end of the rod member, and a crank pin receiving end connected to a second opposing end of the rod member. A separation line for the connecting rod is provided above the crank pin receiving end. The separation line may be provided between the crank pin receiving end and the rod member. The connecting rod may include a first portion including the rod member and the wrist pin receiving end, and a separate second portion including the crank pin receiving end. The separation line may be provided between the first portion and the second portion.

First claim

The invention claimed is:

1. A connecting rod for an air compressor, comprising:
a rod member comprising a wrist pin receiving end forming a first end of the rod member; and
a single piece crank pin receiving end removably connected to a second opposing end of the rod member along a separation line, the crank pin receiving end comprises a continuous inner circumferential surface defining a continuous receiving bore, wherein the inner circumferential surface is formed without a separation line,
wherein the separation line connecting the crank pin receiving end to the rod member is above the receiving bore.

2. The connecting rod as claimed in claim 1 , wherein the separation line is provided between the crank pin receiving end and the rod member.

3. The connecting rod as claimed in claim 1 ,
wherein the connecting rod comprises a first portion including the rod member and the wrist pin receiving end, and a separate second portion including the crank pin receiving end, and
wherein the separation line is provided between the first portion and the second portion.

4. The connecting rod as claimed in claim 3 , further comprising at least one locating pin provided on the second portion and at least one corresponding aperture defined in the first portion,
wherein the at least one locating pin is configured to position the first portion relative to the second portion.

5. The connecting rod as claimed in claim 3 , further comprising at least two studs extending from the second portion,
wherein the at least two studs are received in apertures defined by the first portion, and
wherein a locking nut is threaded on to each stud to lock the first portion to the second portion.

6. The connecting rod as claimed in claim 1 , further comprising:
a crank pin bearing provided in a crank pin receiving bore defined by the crank pin receiving end, and
a wrist pin bearing provided in a wrist pin receiving bore defined by the wrist pin receiving end.

7. The connecting rod as claimed in claim 6 , further comprising at least one spacer ring provided in the crank pin receiving end.

8. The connecting rod as claimed in claim 1 , further comprising at least one grease fitting provided in fluid communication with at least one of: the crank pin receiving end and the rod member.

9. The connecting rod as claimed in claim 1 ,
wherein the crank pin receiving end includes a first base portion extending from a top surface of the crank pin receiving end,
wherein the rod member includes a second base portion extending from a bottom surface of the rod member, and
wherein the separation line is provided between the first base portion and the second base portion.

10. The connecting rod as claimed in claim 1 ,
wherein the wrist pin receiving end is removable from the connecting rod while the crank pin receiving end remains connected to a crank pin, and
wherein the crank pin receiving end is removable from the connecting rod while the wrist pin receiving end remains connected to a wrist pin.

11. An air compressor for a rail vehicle, comprising:
a compressor housing;
at least one piston cylinder supported in the compressor housing; and
a crankshaft assembly supported by the compressor housing and linked to a piston of the at least one piston cylinder by a connecting rod, the connecting rod comprising:
a rod member comprising a wrist pin receiving end forming a first end of the rod member; and
a single piece crank pin receiving end removably connected to a second opposing end of the rod member along a separation line, the crank pin receiving end comprising a continuous inner circumferential surface defining a continuous receiving bore, wherein the inner circumferential surface is formed without a separation line,
wherein the separation line connecting the crank pin receiving end to the rod member is above the receiving bore.

12. The air compressor as claimed in claim 11 , wherein the separation line is provided between the crank pin receiving end and the rod member.

13. The air compressor as claimed in claim 11 , wherein the connecting rod comprises a first portion including the rod member and the wrist pin receiving end, and a separate second portion including the crank pin receiving end, and
wherein the separation line is provided between the first portion and the second portion.

14. The air compressor as claimed in claim 13 , further comprising at least one locating pin provided on the second portion and at least one corresponding aperture defined in the first portion,
wherein the at least one locating pin is configured to position the first portion relative to the second portion.

15. The air compressor as claimed in claim 13 , further comprising at least two studs extending from the second portion,
wherein the at least two studs are received in apertures defined by the first portion, and
wherein a locking nut is threaded on to each stud to lock the first portion to the second portion.

16. The air compressor as claimed in claim 11 , further comprising:
a crank pin bearing provided in a crank pin receiving bore defined by the crank pin receiving end, and
a wrist pin bearing provided in a wrist pin receiving bore defined by the wrist pin receiving end.

17. The air compressor as claimed in claim 16 , further comprising at least one spacer ring provided in the crank pin receiving end.

18. The air compressor as claimed in claim 11 , further comprising at least one grease fitting provided in fluid communication with at least one of: the crank pin receiving end and the rod member.

19. The air compressor as claimed in claim 11 ,
wherein the crank pin receiving end includes a first base portion extending from a top surface of the crank pin receiving end,
wherein the rod member includes a second base portion extending from a bottom surface of the rod member, and
wherein the separation line is provided between the first base portion and the second base portion.

20. The air compressor as claimed in claim 11 ,
wherein the wrist pin receiving end is removable from the connecting rod while the crank pin receiving end remains connected to a crank pin, and
wherein the crank pin receiving end is removable from the connecting rod while the wrist pin receiving end remains connected to a wrist pin.

Assignees

• Westinghouse Air Brake Tech Corp

Inventors

• Hritz Jeffrey

Classifications

• Y10T74/2142

  Pitmans and connecting rods · CPC title

• F04B41/06

  Combinations of two or more pumps · CPC title

• F04B39/066

  Cooling by ventilation · CPC title

• F04B39/0094

  crankshaft · CPC title

• F04B35/04

  the means being electric · CPC title