A fuel pressure regulating valve having: a housing; a fuel chamber into which a fuel flows; a spring chamber receiving a spring; the fuel chamber and the spring chamber being formed within the housing by a partitioning diaphragm; a tubular bush through which fuel flows out of said fuel chamber;Bellows Seal Valves and a valve body mounted to said diaphragm, said valve body being opposed to a valve seat formed in a peripheral edge of an opening portion of said bush;Reducing Valves said valve body being energized in a direction of said valve seat by said spring, said bush being provided with a pressure uniformizing partition wall portion having flow passages or holes for communication said fuel chamber with an external portion,GLOBE VALVE said pressure uniformizing partition wall portion being provided with a plurality of said flow passages or holes extending through both axial end surfaces in an axial direction for uniformizing a pressure distribution of the fuel in the downstream side, said pressure uniformizing partition wall portion being arranged immediately below said valve seat in the axial direction, said pressure uniformizing partition wall portion being arranged so that an end surface in an upstream side in an axial direction is spaced from said valve seat to a downstream side in the axial direction at an amount equal to or more than 0.1 mm and less than 0.7 mm. In order to achieve the object mentioned above, a fuel pressure regulating valve in accordance with the present invention is structured such that a flow collision preventing means for preventing a collision of a flow of a fuel flowing from respective portions in an annular gap formed between a valve body and a valve seat toward a central direction of an opening portion of a bush is provided in the bush. In accordance with this structure, since the collision of the fuel of the fuel flowing from the respective portions in the annular gap formed between the valve body and the valve seat toward the central direction of the opening portion of the bush is prevented by the flow collision preventing means, a positive pressure area generated by the collision of the flow of the fuel is not generated. Accordingly, a pulsation pressure of the positive pressure is not applied to a lower surface of the valve body, a phenomenon that the valve body and a diaphragm vibrate is restricted, and it is possible to reduce a noise due to a resonance of a spring introduced by a vibration transmission and a noise due to a resonance of a fuel pipe and a fuel tank. In this case, the flow collision preventing means may be integrally formed with the bush, however, it is preferable that the structure is made such that a flow collision preventing means independently formed from the bush is fitted to the opening portion of the bush, a part of the flow collision preventing means is protruded to a side of the valve body rather than the valve seat, and a runoff recess portion running off a protruding portion of the flow collision preventing means is formed in the valve body. In accordance with this structure, a shape of the bush may be the same as the conventional one, and it is not necessary to change a design of the shape of the bush. Further, it is possible to improve an accuracy of concentricity between the flow collision preventing means and the bush by an engagement between the both, it is further possible to avoid an interference and a collision between the valve body and the flow collision preventing means by the runoff recess portion formed in the valve body, and it is possible to closely attach the valve body to the valve seat of the bush in a secure manner

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