What is claimed:
1. A seal for sealing a rotating shaft entering a housing comprising:
a. a stator surrounding a shaft and affixed to a housing, said stator having a main body and a projection extending both axially and radially beyond said main body;
b. a rotor surrounding said shaft and rotatively connected to said shaft;
c. said rotor and said stator abutting each other on said shaft;
d. said rotor encompassing said projection of said stator.
2. A seal, according to claim 1 wherein said rotor axially and radially extends beyond said projection on said stator.
3. A seal, according to claim 1, wherein the space between said rotor and said stator projection forms passages.
4. A seal, according to claim 3, wherein said passages include an axial passage opening to the space between said housing and radial extension of the rotor and stator.
5. A seal, in accordance to claim 3, wherein dimension of said axial passage is constant.
6. A seal, in accordance to claim 5, wherein the dimension of said axial passage is predetermined.
7. A seal, in accordance to claim 4, wherein said opening of said axial passage faces the stator.
8. A seal, in accordance to claim 4, wherein said opening of said axial passage faces away from said coolant, said rotor and towards said housing.
9. A seal, according to claim 1, wherein there is at least one labyrinth formed between the main body of said stator and said rotor.
10. A seal, according to claim 1, wherein said rotor and said stator are restrained from relative axial movement between each other.
11. A seal, according to claim 1, wherein a groove is formed in said main body of said stator, said groove augmenting the radial extension of said projection from said stator.
12. A seal, according to claim 1, wherein a groove formed in said body of said stator, augments the axial extension of said projection of said body of said stator.
13. A seal, according to claim 2, wherein said main body of said stator surrounds a portion of said rotor.
14. A seal, according to claim 3, wherein the radius of the radial internal surface of the rotor encompassing said stator is greater than the radius of the exterior surface of said radial projection of said stator.
15. A method of sealing a shaft exit a housing, the method comprising:
a. fixing a stator having a main body and a projection extending both radially and axially beyond the main body of said stator to the housing concentrically about the shaft;
b. mounting a rotor sealed on the shaft in close relation to the housing for rotation with the shaft;
c. the rotor encompassing the radially extremity of the radial projection of the stator and having overlapping radially spaced surfaces forming an axial passage between the surfaces of the rotor and the stator extension;
d. the opening of said axial passage faced away from said rotor and toward the body of said stator.
16. The method of claim 15, including at least one labyrinth between the rotor and the main body of the stator.
17. The method of claim 15, including the steps of rotatively connecting the stator to the rotor to prevent relative axial movement between the stator and the rotor.
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. A signal information processing device for a vehicle that processes signal information containing information on a state of a traffic light, the signal information processing device comprising:
a signal information estimating section circuitry which obtains signal information corresponding to a first traffic light, also obtains information on a relationship between a case in which a traffic of a vehicle is prompted and a case in which the traffic is inhibited as a driving environment for a vehicle corresponding to a second traffic light that is installed at a different location from the first traffic light, and estimates an instruction period at which the second traffic light instructs the vehicle to move forward or to stop as signal information on the second traffic light through a calculation based on the signal information corresponding to the first traffic light and the obtained information on the driving environment for the vehicle, wherein the second traffic light is installed at an intersection, and
the signal information estimating section circuitry estimates the signal information on the second traffic light through a calculation based on the signal information corresponding to the first traffic light and information on a driving environment at the intersection,
wherein the signal information estimating section circuitry is configured to obtain information of the driving environment corresponding the second traffic light as at least one of information on a number of traffic lanes of each of a plurality of roads intersecting with each other at the intersection and information on traffic amount of each of the plurality of roads intersecting with each other at the intersection,
wherein the signal information estimating section circuitry is configured to estimate the instruction period based on the information corresponding to the traffic amount such that the instruction period of the second traffic light instructing the vehicle to move forward is longer than that of a traffic light, that is different from the second traffic light, instructing the vehicle to move forward on the intersecting road in a case of which the traffic amount of the road on which the second traffic light instructing the vehicle to move forward is larger than that of the intersecting road,
wherein the signal information estimating section circuitry is configured to estimate the instruction period based on the information corresponding to the number of traffic lanes such that the instruction period of the second traffic light instructing the vehicle to move forward is longer than that of the traffic light, that is different from the second traffic light, instructing the vehicle to move forward on the intersecting road in a case of which the number of traffic lanes of the road on which the second traffic light instructing the vehicle to move forward is larger than that of the intersecting road.
2. The signal information processing device for a vehicle according to claim 1, wherein the signal information estimating section circuitry calculates, as a time difference, a lag of the signal information corresponding to the second traffic light relative to the signal information corresponding to the first traffic light.
3. The signal information processing device for a vehicle according to claim 2, wherein
the signal information on the first traffic light further contains a starting time point at which the first traffic light starts permitting the vehicle to move forward, and
the signal information estimating section circuitry further obtains information on a time difference between the forward movement permission starting time point by the first traffic light and a forward movement permission starting time point by the second traffic light, and further estimates, as the signal information on the second traffic light, an ending time point at which the forward movement permission by the second traffic light ends based on the estimated instruction period, the starting time point of the first traffic light, and the obtained information on the time difference.
4. The signal information processing device for a vehicle according to claim 1, wherein the signal information estimating section circuitry estimates the signal information on the second traffic light based on a presumption that a time interval at which the first traffic light repeatedly starts permitting a traffic to move forward is equal to a time interval at which the second traffic light repeatedly starts permitting a traffic to move forward.
5. The signal information processing device for a vehicle according to claim 1, wherein the signal information estimating section circuitry estimates, as the signal information on the second traffic light to be estimated, a time interval between a plurality of forward movement permission starts repeatedly provided to a traffic.
6. The signal information processing device for a vehicle according to claim 1, wherein the signal information estimating section circuitry obtains the signal information corresponding to the first traffic light and the information on the driving environment corresponding to the second traffic light from a roadside device that is provided at a roadside to correspond to the first traffic light.
7. The signal information processing device for a vehicle according to claim 1, wherein the signal information estimating section circuitry is built in the vehicle.
8. A driving assistance device comprising a signal information processing device for a vehicle that processes signal information containing information on a state of a traffic light, the driving assistance device being configured to perform a driving assist for a vehicle based on information processed through the signal information processing device, wherein
the signal information processing device is the signal information processing device including: a signal information estimating section circuitry which obtains signal information corresponding to a first traffic light, also obtains information on a relationship between a case in which a traffic of a vehicle is prompted and a case in which the traffic is inhibited as a driving environment for a vehicle corresponding to a second traffic light that is installed at a different location from the first traffic light, and estimates an instruction period at which the second traffic light instructs the vehicle to move forward or to stop as signal information on the second traffic light through a calculation based on the signal information corresponding to the first traffic light and the obtained information on the driving environment for the vehicle, and
wherein the driving assistance device performs the driving assist for the vehicle in relation to a second traffic light based on signal information on the second traffic light estimated by the signal information processing device, wherein the second traffic light is installed at an intersection, and
the signal information estimating section circuitry estimates the signal information on the second traffic light through a calculation based on the signal information corresponding to the first traffic light and information on a driving environment at the intersection,
wherein the signal information estimating section circuitry is configured to obtain information of the driving environment corresponding the second traffic light as at least one of information on a number of traffic lanes of each of a plurality of roads intersecting with each other at the intersection and information on traffic amount of each of the plurality of roads intersecting with each other at the intersection,
wherein the signal information estimating section circuitry is configured to estimate the instruction period based on the information corresponding to the traffic amount such that the instruction period of the second traffic light instructing the vehicle to move forward is longer than that of a traffic light, that is different from the second traffic light, instructing the vehicle to move forward on the intersecting road in a case of which the traffic amount of the road on which the second traffic light instructing the vehicle to move forward is larger than that of the intersecting road,
wherein the signal information estimating section circuitry is configured to estimate the instruction period based on the information corresponding to the number of traffic lanes such that the instruction period of the second traffic light instructing the vehicle to move forward is longer than that of the traffic light, that is different from the second traffic light, instructing the vehicle to move forward on the intersecting road in a case of which the number of traffic lanes of the road on which the second traffic light instructing the vehicle to move forward is larger than that of the intersecting road.
9. A signal information processing method for a vehicle performed by a signal information estimating section circuitry for processing signal information containing information on a state of a traffic light, the method comprising:
obtaining signal information corresponding to the first traffic light and obtaining information on a relationship between a case in which a traffic of a vehicle is prompted and a case in which the traffic is inhibited as a driving environment for a vehicle corresponding to a second traffic light that is installed at a different location from the first traffic light; and
estimating an instruction period at which the second traffic light instructs the vehicle to move forward or to stop as signal information on the second traffic light through a calculation based on the signal information corresponding to the first traffic light and the obtained information on the driving environment of the vehicle, wherein
the second traffic light is installed at an intersection, and
the estimating of the signal information is executed by estimating signal information on the second traffic light through a calculation based on the signal information corresponding to the first traffic light and information on a driving environment at the intersection,
wherein obtaining information of the driving environment corresponding the second traffic light as at least one of information on a number of traffic lanes of each of a plurality of roads intersecting with each other at the intersection and information on traffic amount of each of the plurality of roads intersecting with each other at the intersection,
wherein estimating the instruction period based on the information corresponding to the traffic amount such that the instruction period of the second traffic light instructing the vehicle to move forward is longer than that of a traffic light, that is different from the second traffic light, instructing the vehicle to move forward on the intersecting road in a case of which the traffic amount of the road on which the second traffic light instructing the vehicle to move forward is larger than that of the intersecting road,
wherein estimating the instruction period based on the information corresponding to the number of traffic lanes such that the instruction period of the second traffic light instructing the vehicle to move forward is longer than that of the traffic light, that is different from the second traffic light, instructing the vehicle to move forward on the intersecting road in a case of which the number of traffic lanes of the road on which the second traffic light instructing the vehicle to move forward is larger than that of the intersecting road.
10. The signal information processing method for a vehicle according to claim 9, wherein estimating the signal information is to calculate, as a time difference, a lag of the signal information corresponding to the second traffic light relative to the signal information corresponding to the first traffic light.
11. A driving assistance method utilizing a signal information processing method for a vehicle performed by a driving assistance device including a signal information processing device for processing signal information containing information on a state of a traffic light, the driving assistance method comprising performing a driving assist for a vehicle in relation to the traffic light based on a state of the traffic light,
wherein the signal information processing method performed by a signal information estimating section circuitry of the signal information processing device is the signal information processing method including obtaining signal information corresponding to the first traffic light and obtaining information on a relationship between a case in which a traffic of a vehicle is prompted and a case in which the traffic is inhibited as a driving environment for a vehicle corresponding to a second traffic light that is installed at a different location from the first traffic light; and
estimating an instruction period at which the second traffic light instructs the vehicle to move forward or to stop as signal information on the second traffic light through a calculation based on the signal information corresponding to the first traffic light and the obtained information on the driving environment of the vehicle,
in which a driving assist for the vehicle in relation to the second traffic light is performed based on signal information on the second traffic light estimated through the signal information processing method, wherein
the second traffic light is installed at an intersection, and
the estimating of the signal information is executed by estimating signal information on the second traffic light through a calculation based on the signal information corresponding to the first traffic light and information on a driving environment at the intersection,
wherein obtaining information of the driving environment corresponding the second traffic light as at least one of information on a number of traffic lanes of each of a plurality of roads intersecting with each other at the intersection and information on traffic amount of each of the plurality of roads intersecting with each other at the intersection,
wherein estimating the instruction period based on the information corresponding to the traffic amount such that the instruction period of the second traffic light instructing the vehicle to move forward is longer than that of a traffic light, that is different from the second traffic light, instructing the vehicle to move forward on the intersecting road in a case of which the traffic amount of the road on which the second traffic light instructing the vehicle to move forward is larger than that of the intersecting road,
wherein estimating the instruction period based on the information corresponding to the number of traffic lanes such that the instruction period of the second traffic light instructing the vehicle to move forward is longer than that of the traffic light, that is different from the second traffic light, instructing the vehicle to move forward on the intersecting road in a case of which the number of traffic lanes of the road on which the second traffic light instructing the vehicle to move forward is larger than that of the intersecting road.