Systems and methods for articulated loaders
Systems and methods for a power machine can provide greater functionality and operator comfort. A climate control system for a power machine can include a condenser, mounted on a front frame member of the power machine. Paths for air flow to cool an engine compartment can extend along airflow passages though a fuel tank. Secondary braking systems can allow a power machine to be stopped with modulated fashion when a primary power source is unavailable. Rear-view vision systems can include a camera mounted on a front pivoting frame (e.g., near the top of an operator station) to provide improved environmental information to an operator. A tilt actuator of the power machine can be configured to operate in a float mode.
1 . A power machine comprising:
a main frame that includes a front frame member and a rear frame member pivotally coupled to the front frame member, the front frame member supporting an operator station that includes a cab having a lateral side wall on a first lateral side of the power machine;
a work element supported by the main frame and configured to be controllably operated using power from a power source supported on the main frame; and
a climate control system for regulating temperature for the operator station, the climate control system including a condenser for rejecting heat from the climate control system, the condenser being supported by the front frame member, secured to the lateral side wall, and located at least partly forward of the operator station.
2 . The power machine of claim 1 , wherein a rotational axis of a fan of the condenser extends transverse to a front-to-back axis of the main frame.
3 . The power machine of claim 1 , wherein the condenser is hingedly secured to the lateral side wall.
4 . The power machine of claim 1 , wherein the power source is supported on the rear frame member.
5 . A power machine comprising:
a main frame that supports a power system for the power machine within an internal area of the power machine, the power system including an engine;
a work element supported by the main frame and configured to be controllably operated using power from the engine;
a vent aligned to direct air flow from outside of the main frame into the internal area to cool the engine; and
a fluid tank for the power system aligned between the engine and the vent, the fluid tank including one or more external walls that define an internal fluid storage volume and one or more airflow passages that extend through the fluid tank, being at least partly bounded by at least one of the one or more external walls, to provide air flow to cool the engine.
6 . The power machine of claim 5 , wherein at least one of the airflow passages is fully laterally bounded by the at least one of the external walls, relative to a flow direction of the air flow through the at least one of the airflow passages.
7 . The power machine of claim 5 , wherein the one or more airflow passages include a first airflow passage and a second airflow passage, spaced apart from each other in a front-to-back direction of the power machine so that the internal fluid storage volume extends between the first and second airflow passages.
8 . The power machine of claim 7 , wherein the first airflow passage is vertically offset relative to the second airflow passage.
9 . The power machine of claim 5 , wherein at least one component of the power system of the power machine extends into at least one of the one or more airflow passages.
10 . The power machine of claim 5 , wherein the main frame includes a front frame member and a rear frame member pivotally coupled to the front frame member.
11 . The power machine of claim 5 , wherein the fluid tank is a fuel tank for the engine.
12 . A fuel tank for a power machine, the fuel tank comprising:
an outer shell that defines an internal fuel storage volume;
wherein the outer shell includes at least one airflow passage that is laterally, relative to a flow direction through the at least one airflow passage, surrounded by the internal fuel storage volume to provide a flow path for cooling air flow for an engine of the power machine.
13 . The fuel tank of claim 12 , wherein the outer shell includes a plurality of airflow passages to provide a plurality of flow paths for the cooling air flow.
14 . The fuel tank of claim 13 , wherein one or more of a fuel pickup or a fuel sensor extends through the internal fuel storage volume between at least two of the flow paths.
15 . A power machine comprising:
a main frame that includes a front frame member and a rear frame member pivotally coupled to the front frame member about a vertical axis;
a work element supported by the main frame and configured to be controllably operated using power from a power source supported by the main frame; and
a rearview vision system including a camera supported by the front frame member to provide a rearward view.
16 . The power machine of claim 15 , wherein the front frame member supports an operator station with an operator station frame and the camera is supported by the operator station frame to provide a rearward view that includes at least part of a rear exterior body supported by the rear frame member.
17 . The power machine of claim 16 , wherein the camera is supported by the operator station frame so that the rearward view includes a top rear edge of the rear exterior body.
18 . The power machine of claim 16 , wherein the camera is secured to the operator station frame so that an imaging sensor of the camera is within a distance from a top of the operator station frame that is 20% or less of a total height of the power machine.
19 . The power machine of claim 18 , wherein the camera is secured to the operator station frame so that the imaging sensor of the camera is within a distance from a top of the operator station frame that is 5% or less of a total height of the power machine.
20 . The power machine of claim 19 , wherein the camera is secured to the operator station frame so that the imaging sensor of the camera is within a distance from a top of the operator station frame that is 3% or less of a total height of the power machine.
21 . The power machine of claim 18 , wherein the camera is supported by the operator station frame so that:
with the power machine in a neutral orientation, a field of view of the camera defines a reference point at a back end of the power machine that is furthest laterally removed from a centerpoint of the field of view, relative to a front-to-back direction; and
with the power machine in a minimum turn-radius orientation, the reference point remains within the field of view.
22 . A power machine comprising:
a main frame that includes a front frame member and a rear frame member pivotally coupled to the front frame member about a vertical axis, the front frame member supporting an operator station with an operator station frame, and the rear frame member supporting a power source for the power machine and a rear exterior body;
a work element supported by the main frame and configured to be controllably operated using power from the power source; and
a rearview vision system including a camera supported adjacent a top of the operator station frame to provide a rearward view that includes at least part of the rear exterior body.