Washer member in valve housing of engine

Patent metadata

Field	Value
Publication number	US-9631668-B2
Application number	US-201514666385-A
Country	US
Kind code	B2
Filing date	Mar 24, 2015
Priority date	Mar 24, 2015
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

A washer member disposed in a valve housing of an engine is disclosed. The washer member resiliently supports an injector push member via an elastic member and receives a pair of hydraulic lash adjusters for operating an inlet valve and an outlet valve of a cylinder of the engine. The washer member includes a base portion adapted to abut a support member disposed within the valve housing. The support member defines a clearance with the valve housing to movably dispose the pair of hydraulic lash adjusters within the valve housing. The washer member further includes a side portion extending from the base portion. The side portion is configured to define a lateral movement of the elastic member within a tolerance limit. The side portion is further configured to define a rotational movement of the washer member within a tolerance limit.

First claim

What is claimed is:

1. A washer member disposed in a valve housing of an engine, the washer member configured to resiliently support an injector push member via an elastic member, the valve housing configured to receive a pair of hydraulic lash adjusters for operating an inlet valve and an outlet valve of a cylinder of the engine, the washer member comprising:
a base portion adapted to abut a support member disposed within the valve housing, the support member adapted to define a clearance with the valve housing to movably dispose the pair of hydraulic lash adjusters within the valve housing; and
a side portion extending from the base portion, the side portion configured to define a lateral movement of the elastic member, the side portion further configured to define a rotational movement of the washer member.

2. The washer member of claim 1 , wherein the base portion of the washer member comprises:
a first surface adapted to abut the support member; and
a second surface distal to the first surface, the second surface adapted to abut the elastic member.

3. The washer member of claim 2 , wherein the base portion further comprises:
an opening extending between the first surface and the second surface configured to receive the injector push member therethrough, the opening defines an inner circumference; and
an outer circumference distal to the inner circumference.

4. The washer member of claim 3 , wherein the side portion extends vertically from the second surface of the base portion adjacent to the outer circumference, and wherein the side portion defines a height extending from the first surface of the base portion.

5. The washer member of claim 4 , wherein the washer member comprises at least a first slot along a first transverse axis defined by the second surface of the base portion, the first slot configured to receive a rib defined in the support member, and wherein the first slot is configured to define the rotational movement of the washer member.

6. The washer member of claim 5 , wherein the first slot is extending from the first surface of the base portion along the height of the side portion.

7. The washer member of claim 5 , wherein the washer member comprises a pair of second slots along a second transverse axis defined by the second surface of the base portion, the second transverse axis is perpendicular to the first transverse axis.

8. The washer member of claim 7 , wherein each of the pair of second slots defines a slot width adapted to define the lateral movement of the elastic member.

9. The washer member of claim 7 , wherein the pair of second slots is extending from the first surface of the base portion along the height of the side portion.

10. The washer member of claim 7 , wherein the pair of second slots configured to define a washer width for the washer member, the washer width of the washer member is less than or equal to a width defined by the support member, wherein the width of the support member defines the clearance with the valve housing to movably dispose the pair of hydraulic lash adjusters within the valve housing.

11. A washer member disposed in a valve housing of an engine, the washer member configured to resiliently support an injector push member via an elastic member, the washer member comprising:
a base portion disposed on a support member of the valve housing, the base portion comprising;
a first surface adapted to abut the support member; and
a second surface distal to the first surface, the second surface adapted to abut the elastic member;

a side portion extending from the second surface of the base portion; and
a plurality of slots defined in the side portion, the plurality of slots configured to define a rotational movement of the washer member, the plurality of slots further configured to define a lateral movement of the elastic member.

12. The washer member of claim 11 , wherein the base portion comprises:
an opening extending between the first surface and the second surface, the opening configured to receive the injector push member therethrough, the opening further defines an inner circumference; and
an outer circumference distal to the inner circumference.

13. The washer member of claim 12 , wherein the side portion extends vertically from the second surface of the base portion adjacent to the outer circumference, and wherein the side portion defines a height extending from the first surface of the base portion.

14. The washer member of claim 13 , wherein the washer member comprises at least a first slot along a first transverse axis defined by the second surface of the base portion, the first slot configured to receive a rib defined in the support member, and wherein the first slot is configured to define the rotational movement of the washer member.

15. The washer member of claim 14 , wherein the first slot is extending from the first surface of the base portion along the height of the side portion.

16. The washer member of claim 14 , wherein the washer member comprises a pair of second slots along a second transverse axis defined by the second surface of the base portion, the second transverse axis is perpendicular to the first transverse axis.

17. The washer member of claim 16 , wherein each of the pair of second slots defines a slot width adapted to define the lateral movement of the elastic member.

18. The washer member of claim 17 , wherein the pair of second slots is configured to define a washer width for the washer member, the washer width of the washer member is less than or equal to a width defined by the support member.

19. The washer member of claim 16 , wherein the pair of second slots is extending from the first surface of the base portion along the height of the side portion.

20. A washer member disposed in a valve housing of an engine, the washer member configured to resiliently support an injector push member via an elastic member, the valve housing configured to receive a pair of hydraulic lash adjusters for operating an inlet valve and an outlet valve of a cylinder of the engine, the washer member comprising:
a base portion adapted to abut a support member disposed within the valve housing, the support member adapted to define a clearance with the valve housing to movably dispose the pair of hydraulic lash adjusters within the valve housing, the base portion comprising:
a first surface adapted to abut the support member; and
a second surface distal to the first surface, the second surface adapted to abut the elastic member;

a side portion extending from the second surface of the base portion;
at least a first slot defined in the side portion, the first slot configured to define a rotational movement of the washer member; and
a pair of second slots defined in the side portion spaced apart from the first slot, the pair of second slots configured to define a lateral movement of the elastic member.

Assignees

• Caterpillar Inc

Inventors

• Kizhakkethara Indrajith
• Nagaraj Prabhu
• Masala Mallikarjuna

Classifications

• F01L2307/00

  Preventing the rotation of tappets · CPC title

• F02M61/14

  Arrangements of injectors with respect to engines; Mounting of injectors · CPC title

• F16C17/08

  for supporting the end face of a shaft or other member, e.g. footstep bearings · CPC title

• F16C29/02 Primary

  Sliding-contact bearings · CPC title

• F16C2360/22

  Internal combustion engines · CPC title