1. A method for measuring remaining hydrogen capacity of a hydrogen storage canister, comprising the following steps:
(a) determining a hydrogen capacity of the hydrogen storage canister;
(b) determining a used hydrogen capacity of the hydrogen storage canister;
(c) calculating the remaining hydrogen capacity of the hydrogen storage canister by employing the following equations:
Cac, t=0, s=0=Coc(T, N)=Cac, t=0, s=1
Cac, t=0, s=1=Cac(T)
Cac, t=t, s=1=Cac, t=t\u22121, s=1\u2212Cuc, t=t
\u2003where:
Coc=original hydrogen capacity of fully charged hydrogen storage canister or newly installed hydrogen storage canister;
Cac=available remaining hydrogen capacity of hydrogen storage canister;
Cuc=used hydrogen capacity of hydrogen storage canister;
T=operation temperature of hydrogen storage canister;
N=number of operation cycles of hydrogen storage canister;
S=replacement status of hydrogen storage canister, S=0 indicating newly replaced; S=1 indicating no replacement; and
t=time elapse (sec) of operation of hydrogen storage canister; and
(d) displaying the remaining hydrogen capacity of the hydrogen storage canister on a display module.
2. The method as claimed in claim 1, after step (a), further comprising a step of measuring operation temperature of the hydrogen storage canister to calculate available temperature-calibrated hydrogen capacity of the hydrogen storage canister.
3. The method as claimed in claim 1, after step (c), further comprising a step of measuring operation temperature of the hydrogen storage canister to calculate available remaining temperature-calibrated hydrogen capacity of the hydrogen storage canister.
4. A method for measuring remaining hydrogen capacity of a fully-chargednewly-installed hydrogen storage canister, comprising the following steps:
(a) determining a number of cycles of operation of the hydrogen storage canister;
(b) determining a hydrogen capacity of the hydrogen storage canister;
(c) determining used hydrogen capacity of the hydrogen storage canister;
(d) calculating the remaining hydrogen capacity of the hydrogen storage canister by employing the following equations:
Cac, t=0, s=0=Coc(T, N)=Cac, t=0, s=1
Cac, t=0, s=1=Cac(T)
Cac, t=t, s=1=Cac, t=t\u22121, s=1\u2212Cuc, t=t
\u2003where:
Coc=original hydrogen capacity of fully-chargednewly installed hydrogen storage canister;
Cac=available remaining hydrogen capacity of hydrogen storage canister;
Cuc=used hydrogen capacity of hydrogen storage canister;
T=operation temperature of hydrogen storage canister;
N=number of operation cycles of hydrogen storage canister;
S=replacement status of hydrogen storage canister, S=0 indicating newly replaced; S=1 indicating no replacement; and
t=time elapse (sec) of operation of hydrogen storage canister; and
(e) displaying the remaining hydrogen capacity of the hydrogen storage canister on a display module.
5. The method as claimed in claim 4, after step (a), further comprising a step of employing a hydrogen capacity deterioration curve to calculate available remaining hydrogen capacity of the hydrogen storage canister.
6. The method as claimed in claim 4, after step (a), further comprising a step of measuring operation temperature of the hydrogen storage canister to calculate available temperature-calibrated hydrogen capacity of the hydrogen storage canister.
7. The method as claimed in claim 4, after step (d), further comprising a step of measuring operation temperature of the hydrogen storage canister to calculate the available remaining temperature-calibrated hydrogen capacity of the hydrogen storage canister.
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 scroll compressor comprising:
a housing;
a fixed scroll having a first end plate and a first spiral wall body vertically provided on one surface thereof;
an orbiting scroll which has a second end plate and a second spiral wall body vertically provided on one surface thereof, and by engagement between the first body and the second wall body, which is allowed to revolve and is prevented from rotation;
rotation-preventing portions which are provided for at least one of the housing and the orbiting scroll, and which allow the orbiting scroll to revolve and prevent the rotation thereof;
at least one wall-body shoulder portion provided along an upper edge of the second spiral wall body, the height of the wall-body shoulder portion being small at a central side in the spiral direction and being great at an exterior end side thereof; and
at least one end-plate step portion provided on said one surface of the first end plate at a position facing the wall-body shoulder portion, the height of the end-plate step portion being great at a central side in the spiral direction and being small at an exterior end side thereof;
wherein a phase at which the wall-body shoulder portion is disposed with respect to the center of the orbiting scroll is different from phases at which the rotation-preventing portions are disposed.
2. The scroll compressor according to claim 1,
wherein, among intervals between the phases at which the rotation-preventing portions are disposed with respect to the center of the orbiting scroll, at least one interval between phases is larger than intervals between the other phases, and
the wall-body shoulder portion or the end-plate step portion is disposed between rotation-preventing portions forming said at least one interval.
3. The scroll compressor according to claim 1,
wherein the rotation-preventing portions and the wall-body shoulder portion or the end-plate step portion are disposed at approximately equivalent intervals with respect to the center of the orbiting scroll.
4. The scroll compressor according to claim 1,
wherein a contact portion of the wall-body shoulder portion in contact with the end-plate step portion and a contact portion of the end-plate step portion in contact with the wall-body shoulder portion are provided with surface treatment layers for improving abrasion resistance.
5. The scroll compressor according to claim 1,
wherein a contact portion of the wall-body shoulder portion in contact with the end-plate step portion is provided with a wall-body contact portion formed of an abrasion resistant member, and
a contact portion of the end-plate step portion in contact with the wall-body shoulder portion is provided with an end-plate contact portion formed of an abrasion resistant member.
6. The scroll compressor according to claim 1,
wherein said at least one wall-body shoulder portion and said at least one end-plate step portion are provided at a plurality of positions.
7. The scroll compressor according to claim 1,
wherein the fixed scroll is disposed so that said one surface of the first end plate faces upward, and
the orbiting scroll is disposed so that said one surface of the second end plate faces downward.
8. The scroll compressor according to claim 1,
wherein the fixed scroll and the orbiting scroll are disposed so that the first end plate and the second end plate intersect a horizontal surface, and
the wall-body shoulder portion and the end-plate step portion are disposed in the vicinities of lower ends of the second end plate and the first end plate, respectively.
9. The scroll compressor according to claim 1,
wherein the rotation-preventing portions each have a housing-side support portion which is disposed at the housing and has a cylindrical surface, a scroll-side support portion which is disposed in the orbiting scroll and has a cylindrical surface, and a restricting portion which restricts a distance between a central axis of the housing-side support portion and that of the scroll-side support portion to have a predetermined length,
the housing-side support portion is rotatably supported with respect to the housing or the restricting portion, and
the scroll-side support portion is rotatably supported with respect to the orbiting scroll or the restricting portion.