Claims:We Claim
1. A high pressure fuel pump (10), said high pressure fuel pump (10) comprising:
a pump body (12); characterized in that
a groove (18) defined axially between a first portion (20) of said pump body (12) and a second portion (22) of said pump body (12), the groove (18) facilitates preventing radial forces acting on the first portion (20) of said pump body (12) from being transferred to the second portion (22) of said pump body (12).

2. The high pressure fuel pump (10) in accordance with Claim 1 wherein the groove (18) prevents the radial forces acting on the first portion (20) of said pump body (12) from causing a deformation of the second portion (22) of said pump body (12). , Description:Field of the invention
[0001] This invention relates to a high pressure fuel pump and more particularly to a groove defined within a pump body of the high pressure fuel pump.

Background of the invention
[0002] DE Patent Application Number 201010030792 describes a pump that has a pump element comprising a pump piston that is moved into a hole of a housing portion. The housing portion is indirectly supported over a plunger and a roller at a cam or an eccentric cam of a drive shaft. The plunger is secured against rotation by a ball that is retained in another hole of the housing portion. The plunger is radially pre-tensioned under use of hydraulic force such that the ball is pushed into a longitudinal groove of the plunger, where the ball is subjected with the force in a radial direction.

Brief description of the accompanying drawing
[0003] Figure 1 illustrates a high pressure fuel pump in accordance with one embodiment of the invention.

Detailed description of the invention
[0004] Figure 1 illustrates a high pressure fuel pump 10. The high pressure fuel pump 10 comprises a pump body 12. A groove 18 is defined axially between a first portion 20 of the pump body 12 and a second portion 22 of the pump body 12, the groove 18 facilitates preventing radial forces acting on the first portion 20 of the pump body 12 from being transferred to the second portion 22 of the pump body 12.
[0005] The high pressure fuel pump 10 comprises a pump body 12. The pump body 12 includes a bore 14 that is defined within the pump body 12. A plunger 16 is adapted to reciprocate within the bore 14. A flange 24 is pressed against the pump body 12 and fastened by means of a bolt that is inserted through a bore 26 that is defined in the flange 24.
[0006] The pump body 12 of the high pressure fuel pump 10 comprises a first portion 20 and a second portion 22. A groove 18 separates the first portion 20 from the second portion 22. The groove 18 is defined axially between the first portion 20 and the second portion 22. A radial force is created on the flange 24 by inserting a bolt within the bore 26 that is defined in the flange 24 and fastening it against an engine block. When a radial force is applied by the flange 24 on the pump body 12, the radial force is transmitted to the first portion 20 of the pump body 12. The radial force that is transmitted to the first portion 20 of the pump body 12 causes a deformation of the first portion 20 of the pump body 12. As a consequence, the groove 18 undergoes deformation due to the deformation of the first portion 20 of the pump body 12. The deformation of the groove 18 does not cause a deformation of the second portion 22 of the pump body 12 because no radial force is transmitted from the groove 18 to the second portion 22 of the pump body 12. Hence, the plunger 16 and the bore 14 are not deformed due to the radial force applied by the flange 24 on the pump body 12
[0007] A working of the high pressure fuel pump 10 is described as an example. The flange 24 is secured by inserting a bolt through the bore 26 and fastening it to an engine block. Radial forces from the flange 24 are transmitted to the first portion 20 of the pump body 12, thereby causing a deformation in the first portion 20 of the pump body 12. The radial forces from the first portion 20 of the pump body 12 are transmitted to the groove 18, thereby deforming a portion of the groove 18 that is adjoining the first portion 20 of the pump body 12. A portion of the groove 18 that is adjoining the second portion 22 of the pump body 12 is not deformed. Therefore, the bore 14 and the plunger 16 are not deformed as a consequence of the radial forces acting on the first portion 20 of the pump body 12 by the flange 24.
[0008] It must be understood that the embodiments explained above are only illustrative and do not limit the scope of the disclosure. Many modifications in the embodiments with regard to leverage and dimensions of various levers are envisaged and form a part of this invention. The scope of the invention is only limited by the claims.