Splitter lockout system arranged for conversion between first and second owner configurations
First Claim
1. A compound transmission comprising:
- a main transmission section and an auxiliary transmission section;
the main transmission section havingan input shaft for receiving power from an engine, the input shaft having an input gear rotatably mounted thereon;
a mainshaft generally coaxial with the input shaft, the mainshaft having a plurality of mainshaft gears rotatably mounted thereon;
at least one main countershaft disposed parallel to the input shaft and the mainshaft, the at least one main countershaft having a plurality of countershaft gears mounted thereon, each countershaft gear being in constant meshing engagement with one of the mainshaft gears or the input gear; and
clutch means for selectively connecting the mainshaft gears or the input gear, one at a time, to the mainshaft;
the auxiliary transmission section havingan output shaft generally coaxial with the mainshaft;
a splitter gear rotatably mounted on the mainshaft;
a splitter/range gear rotatably mounted on the output shaft;
a range gear rotatably mounted on the output shaft;
at least one auxiliary countershaft disposed parallel to the output shaft, the at least one auxiliary countershaft having first, second, and third auxiliary countershaft gears mounted thereon and constantly meshed with the splitter gear, the splitter/range gear, and the range gear, respectively;
range clutch means for selectively connecting either the splitter/range gear or the range gear to the output shaft;
splitter clutch means for selectively connecting either the splitter gear or the splitter/range gear to the output shaft;
range control means for positioning the range clutch means; and
splitter control means for positioning the splitter clutch means,wherein engagement of the splitter clutch means with the splitter gear is disabled.
1 Assignment
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Accused Products
Abstract
A compound transmission arranged for conversion between a first configuration without overdrive ratios and a second configuration for which multiple, additional overdrive ratios are provided disables engagement/disengagement of a splitter gear in the first configuration while allowing selective engagement of the splitter gear in the second configuration. The transmission includes an auxiliary transmission section having a splitter gear, a splitter/range gear, and a range gear. A range clutch is provided for selectively connecting either the splitter/range gear or the range gear to the output shaft, and a splitter clutch is provided for selectively connecting either the splitter gear or the splitter/range gear to the output shaft. A range control and splitter control are provided for positioning the range clutch and the splitter clutch, respectively. Without requiring significant disassembly and reassembly of the auxiliary transmission section, the splitter control may be converted from a first configuration in which engagement of the splitter clutch with the splitter gear is disabled, to a second configuration in which engagement of the splitter clutch with the splitter gear is enabled thereby providing multiple, additional overdrive ratios.
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Citations
23 Claims
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1. A compound transmission comprising:
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a main transmission section and an auxiliary transmission section; the main transmission section having an input shaft for receiving power from an engine, the input shaft having an input gear rotatably mounted thereon; a mainshaft generally coaxial with the input shaft, the mainshaft having a plurality of mainshaft gears rotatably mounted thereon; at least one main countershaft disposed parallel to the input shaft and the mainshaft, the at least one main countershaft having a plurality of countershaft gears mounted thereon, each countershaft gear being in constant meshing engagement with one of the mainshaft gears or the input gear; and clutch means for selectively connecting the mainshaft gears or the input gear, one at a time, to the mainshaft; the auxiliary transmission section having an output shaft generally coaxial with the mainshaft; a splitter gear rotatably mounted on the mainshaft; a splitter/range gear rotatably mounted on the output shaft; a range gear rotatably mounted on the output shaft; at least one auxiliary countershaft disposed parallel to the output shaft, the at least one auxiliary countershaft having first, second, and third auxiliary countershaft gears mounted thereon and constantly meshed with the splitter gear, the splitter/range gear, and the range gear, respectively; range clutch means for selectively connecting either the splitter/range gear or the range gear to the output shaft; splitter clutch means for selectively connecting either the splitter gear or the splitter/range gear to the output shaft; range control means for positioning the range clutch means; and splitter control means for positioning the splitter clutch means, wherein engagement of the splitter clutch means with the splitter gear is disabled. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for converting a compound transmission having at least one splitter gear from a first configuration to a second configuration to provide a plurality of additional gear ratios in the second configuration, the method comprising:
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disabling engagement of the splitter gear in the first configuration; and enabling selective engagement of the splitter gear in the second configuration. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A method for converting an auxiliary transmission section of a compound transmission between a first configuration in which engagement of a splitter gear provided in the auxiliary transmission section is disabled, to a second configuration in which engagement of the splitter gear is enabled without requiring significant disassembly and reassembly of the auxiliary transmission section, the method comprising:
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removing a first master valve, the first master valve being connected to a pressurized fluid source; disconnecting an air line from a first splitter cylinder cover attached to a splitter cylinder, wherein the air line provides constant pressure from the pressurized fluid source to a first surface of a piston disposed within the splitter cylinder; removing the first splitter cylinder cover from the splitter cylinder; installing a second splitter cylinder cover onto the splitter cylinder; connecting the air line to the second splitter cylinder cover; installing a second master valve having a splitter air line, wherein the splitter air line is selectively actuated to apply pressure to a second surface of the piston; connecting the splitter air line to the second splitter cylinder cover; and connecting the second master valve to the pressurized fluid source.
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Specification