1. A module for a propulsion system of a vehicle, the propulsion system having an engine, the module comprising:
a fuel pump configured to supply fuel flow having a pressure;
a check valve configured to receive the fuel flow from the fuel pump and to allow passage of the fuel flow toward the engine; and
a relief valve coupled to the fuel pump and configured to release a portion of the pressure of the fuel flow, the relief valve disposed upstream of the check valve.
2. The module of claim 1, further comprising:
a fuel filter coupled to the check valve and configured to filter the fuel flow between the check valve and the engine.
3. The module of claim 1, wherein the relief valve is connected between the fuel pump and the check valve and is not part of the fuel pump.
4. The module of claim 1, wherein the fuel pump, the check valve, and the relief valve are disposed inside a fuel tank of the vehicle.
5. The module of claim 4, further comprising:
a strainer disposed within the fuel tank and coupled to the fuel pump.
6. The module of claim 4, further comprising:
a retainer disposed within the fuel tank, wherein the fuel pump, the check valve, and the relief valve are each disposed on the retainer.
7. A propulsion system for a vehicle, the propulsion system comprising:
an engine;
a fuel pump configured to supply fuel flow having a pressure;
a check valve configured to receive the fuel flow from the fuel pump and to allow passage of the fuel flow to the engine; and
a relief valve coupled to the fuel pump and configured to release a portion of the pressure of the fuel flow, the relief valve disposed upstream of the check valve.
8. The propulsion system of claim 7, wherein the engine comprises a diesel fuel combustion engine.
9. The propulsion system of claim 7, further comprising:
a fuel filter coupled between the check valve and the engine and configured to filter the fuel flow between the check valve and the engine.
10. The propulsion system of claim 7, wherein the relief valve is connected between the fuel pump and the check valve and is not part of the fuel pump.
11. The propulsion system of claim 7, wherein the fuel pump, the check valve, and the relief valve are disposed inside a fuel tank of the vehicle.
12. The propulsion system of claim 11, further comprising:
a strainer disposed within the fuel tank and coupled to the fuel pump.
13. The propulsion system of claim 11, further comprising:
a retainer disposed within the fuel tank, wherein the fuel pump, the check valve, and the relief valve are each disposed on the retainer.
14. A vehicle comprising:
a drive system; and
a propulsion system coupled to the drive system, the propulsion system comprising:
an engine;
a fuel pump configured to supply fuel flow having a pressure;
a check valve configured to receive the fuel flow from the fuel pump and to allow passage of the fuel flow to the engine; and
a relief valve coupled to the fuel pump and configured to release a portion of the pressure of the fuel flow, the relief valve disposed upstream of the check valve.
15. The vehicle of claim 14, wherein the engine comprises a diesel fuel combustion engine.
16. The vehicle of claim 14, wherein the propulsion system further comprises:
a fuel filter coupled between the check valve and the engine and configured to filter the fuel flow between the check valve and the engine.
17. The vehicle of claim 14, wherein the relief valve is connected between the fuel pump and the check valve and is not part of the fuel pump.
18. The vehicle of claim 14, wherein the propulsion system further comprises:
a fuel tank, wherein the fuel pump, the check valve, and the relief valve are disposed inside the fuel tank.
19. The vehicle of claim 18, wherein the propulsion system further comprises:
a strainer disposed within the fuel tank and coupled to the fuel pump.
20. The vehicle of claim 18, wherein the propulsion system further comprises:
a retainer disposed within the fuel tank, wherein the fuel pump, the check valve, and the relief valve are each disposed on the retainer.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An accommodating intraocular lens, comprising:
an optic portion comprising an anterior surface and a posterior surface;
a peripheral portion extending radially from the optic portion; and
flowable media adapted to be moved between the peripheral portion and the optic portion in response to movement of the peripheral portion,
wherein at least one of the anterior surface and the posterior surface is adapted to move to change the power of the intraocular lens in response to movement of the flowable media, and
wherein at least a portion of the peripheral portion has a cross-sectional shape with a maximum dimension in the anterior-to-posterior direction.
2. The intraocular lens of claim 1, wherein the cross sectional shape is generally symmetrical in the anterior-to-posterior direction.
3. The intraocular lens of claim 1, wherein the peripheral portion comprises a first haptic and a second haptic, the first and second haptics extending from the optic portion and in fluid communication with the optic portion.
4. The intraocular lens of claim 3 wherein the first and second haptics extend from the optic portion substantially 180 degrees apart.
5. The intraocular lens of claim 3 wherein the first haptic extends from the optic portion and follows the shape of the optic portion substantially to where the second haptic extends from the optic portion.
6. The intraocular lens of claim 5 wherein the second haptic extends from the optic portion and follows the shape of the optic portion substantially to where the first haptic extends from the optic portion.
7. The intraocular lens of claim 1 wherein the peripheral portion comprises a flowable media chamber in communication with the optic portion, wherein at least a portion of the flowable media chamber has a generally oval cross-sectional shape in an unaccommodated configuration with a maximum dimension measured in the anterior-to-posterior direction.
8. The intraocular lens of claim 7 wherein the optic portion comprises a flowable media channel in communication with the flowable media chamber, wherein the flowable media chamber maximum dimension is greater than a flowable media channel maximum dimension measured in the anterior-to-posterior direction.
9. The intraocular lens of claim 1 wherein the peripheral portion extends further in the anterior direction than the anterior surface of the optic portion.
10. The intraocular lens of claim 9 wherein the peripheral portion comprises a flowable media chamber in communication with a flowable media channel in the optic portion, and wherein the flowable media chamber extends further in the anterior direction than the flowable media channel.
11. The intraocular lens of claim 1 wherein the peripheral portion is adapted to change shape in response to a capsular bag force to move the flowable media between the peripheral portion and the optic portion.
12. The intraocular lens of claim 1 wherein at least one of the anterior surface and the posterior surface is adapted to change shape to change the power of the intraocular lens.
13. The intraocular lens of claim 1 wherein the cross-sectional shape is generally oval.
14. The intraocular lens of claim 1 wherein the cross-sectional shape has the maximum dimension in the anterior-to-posterior direction when the peripheral portion is in an unaccommodated configuration.
15. An accommodating intraocular lens, comprising:
an optic portion comprising an anterior surface and a posterior surface;
a peripheral portion extending radially from the optic portion;
flowable media adapted to be moved between the peripheral portion and the optic portion in response to movement of the peripheral portion,
wherein at least one of the anterior surface and the posterior surface is adapted to move to change the power of the intraocular lens, and
wherein at least a portion of the peripheral portion has a cross-sectional shape with a maximum thickness dimension in the anterior-to-posterior direction and a maximum height dimension measured along a line generally perpendicular to the thickness dimension, wherein the thickness dimension is greater than the height dimension.
16. The intraocular lens of claim 1, wherein the cross sectional shape is generally symmetrical about the thickness dimension.
17. The intraocular lens of claim 1, wherein the peripheral portion comprises a first haptic and a second haptic, the first and second haptics extending from the optic portion and in fluid communication with the optic portion.
18. The intraocular lens of claim 17 wherein the first and second haptics extend from the optic portion substantially 180 degrees apart.
19. The intraocular lens of claim 17 wherein the first haptic extends from the optic portion and follows the shape of the optic portion substantially to where the second haptic extends from the optic portion.
20. The intraocular lens of claim 19 wherein the second haptic extends from the optic portion and follows the shape of the optic portion substantially to where the first haptic extends from the optic portion.
21. The intraocular lens of claim 15 wherein the peripheral portion comprises a flowable media chamber in communication with the optic portion, wherein at least a portion of the flowable media chamber has a generally oval cross-sectional shape in an unaccommodated configuration with a maximum thickness dimension in the anterior-to-posterior direction and a maximum height dimension measured along a line generally perpendicular to the thickness dimension, wherein the maximum thickness dimension of the chamber is greater than the maximum height dimension of the chamber.
22. The intraocular lens of claim 21 wherein the optic portion comprises a flowable media channel in communication with the flowable media chamber, wherein the flowable media chamber maximum thickness is greater than a flowable media channel maximum thickness measured in the anterior-to-posterior direction.
23. The intraocular lens of claim 15 wherein the peripheral portion extends further in the anterior direction than the anterior surface of the optic portion.
24. The intraocular lens of claim 23 wherein the peripheral portion comprises a flowable media chamber in communication with a flowable media channel in the optic portion, and wherein the flowable media chamber extends further in the anterior direction than the flowable media channel.
25. The intraocular lens of claim 15 wherein the peripheral portion is adapted to change shape in response to a capsular bag force to move the flowable media between the peripheral portion and the optic portion.
26. The intraocular lens of claim 15 wherein at least one of the anterior surface and the posterior surface is adapted to change shape to change the power of the intraocular lens.
27. The intraocular lens of claim 15 wherein the cross-sectional shape is generally oval.
28. The intraocular lens of claim 15 wherein the cross-sectional shape has the maximum thickness dimension in the anterior-to-posterior direction when the peripheral portion is in an unaccommodated configuration.