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US3757612A Expired / Lapsed US ⏱️ 0.0 years remaining

Transmission and controls

Assignee: Motors Liquidation Co
•
Filing: 1971-03-24
•
Granted: 1973-09-11
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Expires: 1991-03-24
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Abstract

Abstract A transmission controlled by a combustion engine torque demand or fuel feed control member which is connected by a linkage to move a cam actuator and cam follower which actuates a torque demand pressure regulator valve proportional to the movement of the fuel feed member to provide a torque demand pressure uniformly proportional to engine torque. A support housing is rotatably mounted in an aperture in a wall of the transmission housing for rotation about the axis of the cam follower and the cam actuator is reciprocably mounted on the support housing on an axis perpendicular to the axis of the cam follower. The support housing rotates about its axis so that swinging movement of the connecting linkage is accommodated by rotation of the support housing for accurate transmittal of the torque demand signal from the fuel feed control to the cam actuator and follower without binding or strain. The cam actuator has a profile so that its movement uniformly proportional to fuel feed provides in the cam follower movement uniformly proportional to engine torque.

Inventors

  • 👤 R Schaefer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 19:25
CPC Classifications
F; F16; F16H; F16H59/00; F16H59/14; F16H59/18; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 218 words
In a transmission, a transmission housing having a wall member with an opening therein, multiple torque ratio drive means providing a plurality of torque ratio drives and having control means for selectively establishing said torque ratio drives and including torque demand signal means providing a torque demand signal for controlling said control means located in said housing, fuel feed control means including a fuel feed control element moving proportional to fuel feed, cam means including a support member mounted on said housing wall for rotation about an axis and located outside of said housing, cam follower means mounted for reciprocation relative to said members and extending through said opening in said housing wall member along said axis, cam actuator means mounted on said support member for reciprocation transverse to said axis and contacting said cam follower means to reciprocate said cam follower means in response to reciprocation of said cam actuator means with the same relationship regardless of the rotary position of said support member and a linkage connected to said fuel feed control element and said cam actuator means to move said cam actuator means in proportion to movement of said fuel feed element and lateral movement of said linkage being accommodated by rotation of said support member to relieve strain on said linkage and cam means.
Claim 2
Dependent Claim 218 words
In a transmission, a transmission housing having a wall member with an opening therein, multiple torque ratio drive means providing a plurality of torque ratio drives and having control means for selectively establishing said torque ratio drives and including torque demand signal means providing a torque demand signal for controlling said control means located in said housing, fuel feed control means including a fuel feed control element moving proportional to fuel feed, cam means including a support member mounted on said housing wall for rotation about an axis and located outside of said housing, cam follower means mounted for reciprocation relative to said members and extending through said opening in said housing wall member along said axis, cam actuator means mounted on said support member for reciprocation transverse to said axis and contacting said cam follower means to reciprocate said cam follower means in response to reciprocation of said cam actuator means with the same relationship regardless of the rotary position of said support member and a linkage connected to said fuel feed control element and said cam actuator means to move said cam actuator means in proportion to movement of said fuel feed element and lateral movement of said linkage being accommodated by rotation of said support member to relieve strain on said linkage and cam means.
Claim 3
Dependent Claim 19 words
The invention defined in claim 1 and said cam follower means being mounted for reciprocation on said support member.
Claim 4
Dependent Claim 33 words
The invention defined in claim 2 and said support member having a sleeve pivotally mounted in said opening in said housing wall member and said cam follower being reciprocably mounted in said sleeve.
Claim 5
Dependent Claim 262 words
In a transmission, a transmission housing having a wall with an opening therein, multiple torque ratio drive means providing a plurality of torque ratio drives and having control means for selectively establishing said torque ratio drives and including torque demand signal means providing a torque demand signal for controlling said control means located in said housing, fuel feed control means including a fuel feed control member moving proportional to fuel feed, a support member having a housing and a sleeve with the sleeve mounted for rotation in said opening in said housing wall for rotation without axial movement about an axis to rotatably support said support housing outside of said transmission housing, a cam follower member mounted in said sleeve for reciprocation relative to said sleeve and extending into said housing wall along said axis, said sleeve at its free end inside said transmission housing having an internal shoulder, a spring between said shoulder and cam follower, a cam actuator member mounted in said support housing for reciprocation transverse to said axis and contacting said cam follower member to reciprocate said cam follower member in response to reciprocation of said cam actuator member with the same relationship regardless of the rotary position of said support member and linkage connected to said fuel feed control member and said cam actuator member to move said cam actuator member in proportion to movement of said fuel feed member and lateral movement of said linkage being accommodated by rotation of said support member to relieve strain on said linkage cam actuator member and cam follower member.
Claim 6
Dependent Claim 262 words
In a transmission, a transmission housing having a wall with an opening therein, multiple torque ratio drive means providing a plurality of torque ratio drives and having control means for selectively establishing said torque ratio drives and including torque demand signal means providing a torque demand signal for controlling said control means located in said housing, fuel feed control means including a fuel feed control member moving proportional to fuel feed, a support member having a housing and a sleeve with the sleeve mounted for rotation in said opening in said housing wall for rotation without axial movement about an axis to rotatably support said support housing outside of said transmission housing, a cam follower member mounted in said sleeve for reciprocation relative to said sleeve and extending into said housing wall along said axis, said sleeve at its free end inside said transmission housing having an internal shoulder, a spring between said shoulder and cam follower, a cam actuator member mounted in said support housing for reciprocation transverse to said axis and contacting said cam follower member to reciprocate said cam follower member in response to reciprocation of said cam actuator member with the same relationship regardless of the rotary position of said support member and linkage connected to said fuel feed control member and said cam actuator member to move said cam actuator member in proportion to movement of said fuel feed member and lateral movement of said linkage being accommodated by rotation of said support member to relieve strain on said linkage cam actuator member and cam follower member.
Claim 7
Dependent Claim 41 words
The invention defined in claim 4 and said fuel feed control member being a pivoted lever and said linkage being a rigid rod pivoted to and reciprocated by said lever and slidably mounted in said support housing transverse to said axis.
Claim 8
Dependent Claim 29 words
The invention defined in claim 4 and said linkage being a sheathed cable connecting said fuel feed member to said cam actuator member to reciprocate said cam actuator member.
Claim 9
Dependent Claim 255 words
In a transmission; a torque demand control member for an engine movable uniformly proportional to fuel feed on the engine providing torque in a predetermined non-uniform proportion to fuel feed movement, a multiratio gear transmission providing a plurality of ratio drives and having power shift control means including torque demand responsive control means for shifting to selectively establishing a plurality of ratio drives, said transmission including a housing having a wall with aperture therein, a support member having a sleeve rotatably mounted in said aperture in said transmission housing wall adjacent said aperture, a cam follower member reciprocably mounted in said sleeve of said support member and operatively connected to said torque demand responsive control means, a cam actuator member reciprocably mounted on said support member transversely to the axis of said cam follower member, said cam actuator member and said cam follower member having cam surfaces converting fuel feed movement of said cam actuator member to movement of said cam follower member proportional to engine torque, linkage means having reciprocating and lateral movement connecting said torque demand control member to said cam actuator member to reciprocate said cam actuator member in response to movement of said torque demand control member and said cam follower member and support member rotating to permit rotary movement of said support member while maintaining the same relationship between said cam actuator member and cam follower member for accurate transmittal of the motion of said torque demand control member to said cam follower member and torque demand responsive control means.
Claim 10
Dependent Claim 255 words
In a transmission; a torque demand control member for an engine movable uniformly proportional to fuel feed on the engine providing torque in a predetermined non-uniform proportion to fuel feed movement, a multiratio gear transmission providing a plurality of ratio drives and having power shift control means including torque demand responsive control means for shifting to selectively establishing a plurality of ratio drives, said transmission including a housing having a wall with aperture therein, a support member having a sleeve rotatably mounted in said aperture in said transmission housing wall adjacent said aperture, a cam follower member reciprocably mounted in said sleeve of said support member and operatively connected to said torque demand responsive control means, a cam actuator member reciprocably mounted on said support member transversely to the axis of said cam follower member, said cam actuator member and said cam follower member having cam surfaces converting fuel feed movement of said cam actuator member to movement of said cam follower member proportional to engine torque, linkage means having reciprocating and lateral movement connecting said torque demand control member to said cam actuator member to reciprocate said cam actuator member in response to movement of said torque demand control member and said cam follower member and support member rotating to permit rotary movement of said support member while maintaining the same relationship between said cam actuator member and cam follower member for accurate transmittal of the motion of said torque demand control member to said cam follower member and torque demand responsive control means.
Claim 11
Dependent Claim 218 words
In a control, a controlling member movable proportional to a control function, controlled means providing a signal proportional to a force, a housing for the controlled means having a wall with aperture therein, a support member rotatably mounted on said housing wall concentric with said aperture, a cam follower member rotatably and reciprocably mounted in said support member coaxial with the axis of rotation of said support member operatively connected to said controlled means to apply a force to said controlled means proportional to movement of said cam follower member, a cam actuator member reciprocably mounted on said support member transverse to the axis of said support member operatively engaged with said cam follower member to reciprocate said cam follower member in response to reciprocation of said cam actuator member, linkage means having reciprocating and lateral movement connecting said controlling member to said cam actuator member to reciprocate said cam actuator member in response to movement of said controlling memBer and said cam actuator member and support member rotating to permit rotary movement of the linkage means about the axis of said cam follower member and support member for accommodating said lateral movement while maintaining the same relationship between said cam actuator member and cam follower member for accurate transmittal of the movement of the controlling member function.
Claim 12
Dependent Claim 218 words
In a control, a controlling member movable proportional to a control function, controlled means providing a signal proportional to a force, a housing for the controlled means having a wall with aperture therein, a support member rotatably mounted on said housing wall concentric with said aperture, a cam follower member rotatably and reciprocably mounted in said support member coaxial with the axis of rotation of said support member operatively connected to said controlled means to apply a force to said controlled means proportional to movement of said cam follower member, a cam actuator member reciprocably mounted on said support member transverse to the axis of said support member operatively engaged with said cam follower member to reciprocate said cam follower member in response to reciprocation of said cam actuator member, linkage means having reciprocating and lateral movement connecting said controlling member to said cam actuator member to reciprocate said cam actuator member in response to movement of said controlling memBer and said cam actuator member and support member rotating to permit rotary movement of the linkage means about the axis of said cam follower member and support member for accommodating said lateral movement while maintaining the same relationship between said cam actuator member and cam follower member for accurate transmittal of the movement of the controlling member function.
Claim 13
Dependent Claim 253 words
In a control, a controlling member movable proportional to a control function, controlled means for providing a signal varying with said control function, support means including a fixed support member and a rotatable support member rotatably mounted on said fixed support member for rotation about an axis to a plurality of rotary positions, said controlled means having cam follower means mounted on said support means for reciprocation axially with the axis of rotation of said rotary support member operative to cause said controlled means to provide a signal varying as a function of movement of said cam follower means, cam actuator means reciprocably mounted on said rotary support member for reciprocal movement transverse to said axis of said rotary support member operatively engaging said cam follower means to reciprocate said cam follower means in response to reciprocation of said cam actuator means in the same functional relation in said plurality of rotary positions and rotatable with said rotary support member, linkage means having reciprocating and lateral movement connecting said controlling member to said cam actuator means to reciprocate said cam actuator means in response to movement of said controlling member, said cam actuator means and said rotary support member rotating to permit rotary movement of a portion of said linkage means about the axis of said rotary support member to accommodate said lateral movement while maintaining the same relationship between said cam actuator means and cam follower means for accurate transmittal of the movement of the controlling member function to said controlled means.
Claim 14
Dependent Claim 253 words
In a control, a controlling member movable proportional to a control function, controlled means for providing a signal varying with said control function, support means including a fixed support member and a rotatable support member rotatably mounted on said fixed support member for rotation about an axis to a plurality of rotary positions, said controlled means having cam follower means mounted on said support means for reciprocation axially with the axis of rotation of said rotary support member operative to cause said controlled means to provide a signal varying as a function of movement of said cam follower means, cam actuator means reciprocably mounted on said rotary support member for reciprocal movement transverse to said axis of said rotary support member operatively engaging said cam follower means to reciprocate said cam follower means in response to reciprocation of said cam actuator means in the same functional relation in said plurality of rotary positions and rotatable with said rotary support member, linkage means having reciprocating and lateral movement connecting said controlling member to said cam actuator means to reciprocate said cam actuator means in response to movement of said controlling member, said cam actuator means and said rotary support member rotating to permit rotary movement of a portion of said linkage means about the axis of said rotary support member to accommodate said lateral movement while maintaining the same relationship between said cam actuator means and cam follower means for accurate transmittal of the movement of the controlling member function to said controlled means.

References Cited (Backward Citations)

US1936191A Cited
US2352212A Cited
US2326138A Cited
US2617626A Cited
US2648518A Cited
US2740304A Cited
US3080768A Cited
US3036476A Cited
US3253480A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-09-10 1977-03-12 1977-09-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-09-10 1981-03-12 1981-09-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-09-10 1985-03-12 1985-09-11 $7700.00 Window Closed / Lapsed

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