التفاصيل البيبلوغرافية
| العنوان: |
LUBRICANT VENT STRUCTURE OF FUEL PUMP FOR VEHICLE |
| Document Number: |
20110048385 |
| تاريخ النشر: |
March 3, 2011 |
| Appl. No: |
12/868358 |
| Application Filed: |
August 25, 2010 |
| مستخلص: |
A lubricant vent structure of a fuel pump for a vehicle, may include a mounting unit mounted to a pumping unit, a plurality of link units having a support link and a stopper restricting a rotatable range of the support link, wherein the plurality of link units is pivotally connected each other in a series by an elastic member respectively and the elastic member elastically supports the support link in the direction of the maximum rotatable range thereof, and a vent tube having an open end fixed to the last support link of the link units and communicating with a lubrication space of the pumping unit of the fuel pump, wherein the support link of the first link of the link units is pivotally fixed to the mounting unit of the fuel pump. |
| Inventors: |
Park, Changjun (Hwaseong-si, KR) |
| Assignees: |
Hyundai Motor Company (Seoul, KR), Kia Motors Corporation (Seoul, KR) |
| Claim: |
1. A lubricant vent structure of a fuel pump for a vehicle, comprising: a mounting unit mounted to a pumping unit; a plurality of link units having a support link and a stopper restricting a rotatable range of the support link, wherein the plurality of link units is pivotally connected each other in a series by an elastic member respectively and the elastic member elastically supports the support link in the direction of the maximum rotatable range thereof; and a vent tube having an open end fixed to the last support link of the link units and communicating with a lubrication space of the pumping unit of the fuel pump, wherein the support link of the first link of the link units is pivotally fixed to the mounting unit of the fuel pump. |
| Claim: |
2. The lubricant vent structure of the fuel pump for the vehicle as defined in claim 1, wherein the rotatable range of each link unit is limited such that a free end of the last link unit in the link units connected in a series is positioned at the highest level in a fuel tank, with the mounting unit of the fuel pump being fixed to a fuel tank. |
| Claim: |
3. The lubricant vent structure of the fuel pump for the vehicle as defined in claim 2, wherein the open end of the vent tube is connected to a free end of the support link of the last link unit in the link units connected in a series, a tube cap connects the vent tube and the free end of the support link of the last link and having a vent hole fluid-communicating with the open end of the vent tube, and a guide cap has a cap hole and is coupled to the tube cap to cover the tub cap, wherein the cap hole of the guide cap and the vent hole of the tube cap fluid communicate with each other through a non-straight path while the guide cap covers the vent hole not to be exposed to the inside of the fuel tank through a straight path. |
| Claim: |
4. The lubricant vent structure of the fuel pump for the vehicle as defined in claim 3, wherein: the link unit includes a first link unit and a second link unit, the first link unit includes a first support link that is pivotally fixed to a fixing hinge body fixed to the mounting unit of the fuel pump and a first spring that is an elastic member elastically supporting the first support link against the fixing hinge body, the fixing hinge body has a first stopper that restricts the maximum rotatable range of the first support link, the second link unit includes a second support link that is rotatably fixed to a float bracket formed to the end of the first support link and a second spring that is an elastic member elastically supporting the second support link against the float bracket, and the second support link has a second stopper that restricts the maximum rotatable range of the second support link with respect to the float bracket and tube cap and the guide cap are formed to a distal end of the second support link. |
| Claim: |
5. The lubricant vent structure of the fuel pump for the vehicle as defined in claim 4, wherein the vent tube is made of a flexible material to be bendable by movement of the support links of the link unit, and the support link of the link unit has a fixing portion to fix the vent tube thereto. |
| Claim: |
6. The lubricant vent structure of the fuel pump for the vehicle as defined in claim 5, wherein the fixing portion is a hole formed in the support link. |
| Claim: |
7. The lubricant vent structure of the fuel pump for the vehicle as defined in claim 5, wherein the fuel pump has: the pumping unit sunk in the liquid fuel in the fuel tank and pumping up the fuel; and the mounting unit connected with the pumping unit, fixed to the fuel tank, and connected with the outside of the fuel tank while fixing the pumping unit with respect to the fuel tank, wherein the fixing hinge body is fixed to the mounting unit while protruding downward from the lower side of the mounting unit. |
| Current U.S. Class: |
123/509 |
| Current International Class: |
02; 04 |
| رقم الانضمام: |
edspap.20110048385 |
| قاعدة البيانات: |
USPTO Patent Applications |
