CLIAMS:We claim:
1. A throttle body assembly (200) for vehicles, said assembly comprising,
a throttle body (201) provided with an interface to mount a fuel injector (202); a cable connected between a throttle flap of said throttle body (201) and a throttle control means of said vehicle;
said assembly characterized in that,
a common bracket (203) is fitted to said throttle body (201) to hold said cable and an injector cup (204) supporting said fuel injector (202).
2. A throttle body assembly as claimed in claim (1) wherein said cable is a Bowden cable.
3. A throttle body assembly as claimed in claim (1) wherein said injector cup (204) with a fuel inlet nozzle is fitted on top of a fuel injector (202) mounted on the throttle body (201).
4. A throttle body assembly as claimed in claim (1) wherein said common bracket (203) holds said injector cup (204) by the inlet nozzle.
,TagSPECI:Field of the invention:
[0001] The invention relates to a throttle body. Particularly the invention relates to a bracket for holding a throttle cable.
Background of the invention:
[0002] Presently available mechanical throttle bodies are controlled by means of a Bowden cable. The Bowden cable is connected between the throttle flap pivot and the throttle control element or an accelerator. A bracket holds the Bowden cable in position during the operation and prevents the cable from coming in contact with the throttle body directly while maintaining desired tension in the cable. A fuel injector is mounted on the throttle body at an interface which is provided for the injector on the throttle body. The injector is held in position on the throttle body with help of an injector cup. The injector cup is connected to the throttle body with help of plurality of screws. The injector cup design is complicated since the cup needs to be provided with a inlet nozzle and additional flanges with holes for holding the screws is required. Similarly the throttle body also needs to be provided with corresponding features to receive the screws to hold the injector cup in position. During assembly process the mounting of the injector cup by screw fitting takes considerable time.
Brief description of the invention:
[0003] The present invention envisages a throttle body having a common bracket for a Bowden cable for the throttle and an injector cup.
[0004] A throttle body assembly for vehicles is disclosed. The throttle body assembly comprises a throttle body provided with an interface to mount a fuel injector and a cable connected between a throttle flap of said throttle body and a throttle control means of said vehicle. The assembly is characterized by a common bracket that is fitted to the throttle body to hold said cable and also to an injector cup supporting a fuel injector.
[0005] The design of the injector-cup which is fitted to a bracket instead of being screwed to the throttle body is very simple. Elimination of additional features on the throttle body for Injector cup fixation is achieved. There is thus, no need for additional screws for holding the injector cup to the throttle body. The combined bracket for holding Bowden cable and Injector cup reduces the cost of the throttle body assembly. The need for a separate assembly station for fixing of the injector cup during the manufacturing is also eliminated.
Brief description of the accompanying drawings:
[0006] The present invention is described in detail with reference to the following accompanying drawings,
[0007] Fig. 1 illustrates a throttle body assembly in accordance with the present state of art; and
[0008] Fig. 2 illustrates a throttle body assembly in accordance with one embodiment of the invention.
Detailed description of the drawings:
[0009] Fig. 1 illustrates a throttle body assembly (100) in accordance with the present state of art.
[00010] The fig. 1 illustrates a throttle body assembly (100) comprising a throttle body (101), a bracket (103) to hold a Bowden cable (not shown), an injector (102) mounted on the throttle body (101) and an injector cup (104) connected to the injector (102). The bracket (103) is fitted to the throttle body (101) such that it supports the Bowden cable which is used for controlling the throttle opening. The bracket (103) is typically screw fitted to the throttle body (101) and requires features corresponding to the screws to be made on the throttle body (101) as well. The injector cup (104) as illustrated in fitted to the throttle body (101) with help of at least two screws. This also requires corresponding features to receive the screws to be made on the throttle body (101) during manufacturing. During manufacturing the bracket (103) and injector cup (104) need to be mounted and fitted separately. This increases the overall cost and time to assemble the throttle body assembly (100).
[00011] Fig. 2 illustrates a throttle body assembly (200) in accordance with one embodiment of the invention. The throttle body assembly (200) comprises a throttle body (201) provided with an interface to mount a fuel injector (202) and a Bowden cable (not shown) connected between a throttle flap of said throttle body (201) and a throttle control means of said vehicle. The assembly is characterized by a common bracket (203) that is fitted to the throttle body to hold the Bowden cable and connected to an injector cup (204) supporting a fuel injector (202).
[00012] The throttle body (201) is provided with an interface for mounting the fuel injector (202). During assembly the fuel injector (202) is mounted on the throttle body (201) first. The fuel injector (202) is further supported by a fuel injector cup (204). The common bracket (203) is fitted near on the throttle body (201) and supports a Bowden cable connected to the throttle flap for throttle control. The same common bracket (203) is provided with an extension towards the fuel injector (202) position. The inlet nozzle of the injector cup (204) passes through an aperture in the common bracket (203). Thus, the common bracket (203) supports the injector cup (204) and no further screws are required for holding the same. As the common bracket (203) that holds the Bowden cable for the throttle control also holds the injector cup (204), there is no need for a separate assembly step for fitting the injector cup (204) to the throttle body (201). The proposed design of the throttle body assembly (200) without the features for injector cup (204) mounting results in overall cost reduction of about 30% as compared to the present state of art. The time for assembly also is reduced since no separate mounting of the injector cup (204) is necessary.
[00013] It should be understood that embodiments explained in the description above are only illustrative and do not limit the scope of this invention. Many such embodiments and other modifications and changes in the embodiment explained in the description are envisaged. The shape and configuration of the bracket (203) is not limited to as illustrated in the accompanying figures. Any form of a common bracket (203) to hold the throttle cable and the injector (202) and injector cup (204) in position would be covered in the scope of the invention. The scope of the invention is only limited by the scope of the claims.